Vol. 05 / 2026The IndexUpdated May 2026
№ 00 — The Low Humidity Index

The 25 lowest humidity in 2026.

Ranked by annual average relative humidity May 2026: 25 cities with the lowest humidity. Las Vegas tops at 9.8. The full ranked table.

9.8
Top score
Las Vegas, USADriest major city, 2026
№ 01 — The Top Three

The three humidity cities of 2026.

Ranked one through three on the annual average relative humidity at the World Meteorological Organization 1991 to 2020 baseline. The arithmetic, the why, and the local context.

01
9.8dry
USA · North America · dry 9.8

Las Vegas, USA

Las Vegas takes the lowest humidity city of 2026 at a 9.8 dry composite reading. The annual average relative humidity runs at 30 percent, the absolute lowest of any city above 500,000 population globally on the World Meteorological Organization 1991 to 2020 normals. The summer humidity at the July through August window runs at 18 to 25 percent (against the global tropical baseline at 75 to 95 percent). The structural Las Vegas anchor is the universal Mojave Desert atmospheric pattern that delivers the structural absence of a structural humid week across the year plus the structural rainfall at 110 millimeters annual baseline.

The Las Vegas structural advantage on the dry axis runs three deep. The structural Mojave Desert humidity at the 30 percent annual baseline runs the absolute lowest reading in the WMO ranked field. The structural absence of a major water body inside the central tier (the Lake Mead reservoir sits 35 kilometers from the central Strip; the Colorado River sits 50 kilometers from the central tier) compresses the structural local humidity envelope. The structural rainfall at 110 millimeters annual baseline runs the structurally lowest rainfall of any major United States city above 1 million population.

The trade off against the Riyadh and Phoenix picks (number 2 and number 3) runs on the structural elevated summer high envelope at the 38C to 44C July through August daily high baseline plus the structural elevated UVB index at the 11 plus reading on 130 days per year. The full Las Vegas city profile walks the cost, climate, and visa stack.

Humidity %30
Sun hrs3825
Rain mm110
02
9.7dry
Saudi Arabia · Western Asia · dry 9.7

Riyadh, Saudi Arabia

Riyadh takes second at a 9.7 dry composite reading. The annual average relative humidity runs at 35 percent, the structurally tight Najd Plateau atmospheric pattern that delivers the structural absence of a structural humid week across the year plus the structural rainfall at 90 millimeters annual baseline. The Riyadh structural anchor is the universal Arabian Desert atmospheric pattern that delivers the structural cloud cover at the 22 percent annual baseline plus the structural sunshine at 3,500 annual hours.

The Riyadh structural advantage on the dry axis runs three deep. The structural Najd Plateau elevation at 612 meters delivers the structural altitude humidity reduction against the coastal Arabian baseline. The structural rainfall at 90 millimeters annual baseline runs the structurally lowest rainfall of any major Middle Eastern capital. The structural absence of a major water body inside the central tier compresses the structural local humidity envelope. The structural Saudi Vision 2030 infrastructure investment runs deep at the central tier across the metro, transit, and entertainment infrastructure.

The trade off against the Las Vegas pick (number 1) runs on the structural elevated summer high envelope at the 41C to 46C June through August daily high baseline plus the structural civil liberties tier at the LGBTQ relationship and political speech axes. The full Riyadh city profile walks the cost, climate, and visa stack; the Saudi Arabia visa 2026 guide walks the residence pathway.

Humidity %35
Sun hrs3500
Rain mm90
03
9.7dry
USA · North America · dry 9.7

Phoenix, USA

Phoenix takes third at a 9.7 dry composite reading. The annual average relative humidity runs at 36 percent. The Phoenix structural anchor is the universal Sonoran Desert atmospheric pattern that delivers the structural absence of a structural humid week across the year plus the structural rainfall at 200 millimeters annual baseline (the central Phoenix Sonoran Monsoon window at July through August adds the structural moisture envelope at the 50 to 75 percent humidity tier across 8 to 14 days a year).

The Phoenix structural advantage on the dry axis runs three deep. The structural Sonoran Desert humidity at the 36 percent annual baseline runs the structurally tight desert pattern plus the structural year round low humidity envelope outside the structural late July through August Sonoran Monsoon window. The structural rainfall at 200 millimeters annual baseline runs at the structural moderate desert tier (against the Las Vegas equivalent at 110 millimeters and the Yuma equivalent at 80 millimeters). The structural Phoenix metropolitan area at the 5.0 million tier delivers the structural career and dating pool that the Yuma and the smaller desert tier cannot match.

The trade off against the Las Vegas pick (number 1) runs on the structural Sonoran Monsoon humidity envelope at the late July through August window (the Phoenix August humidity runs 50 to 75 percent at the monsoon storm tier; the Las Vegas equivalent at the same window stays at the 30 to 45 percent tier on the structural absence of the Mojave monsoon pattern). The full Phoenix city profile walks the cost, climate, and visa stack.

Humidity %36
Sun hrs3872
Rain mm200
№ 02 — The Index

The 25 cities with low humidity, ranked.

Full ranked table of the 25 cities with low humidity of 2026 by the annual average relative humidity at the World Meteorological Organization 1991 to 2020 baseline. Click the city name for the full profile.

No
City
Country
Humidity %
Sun hrs
Rain mm
Dry
01
USA
30
3825
110
9.8
02
Saudi Arabia
35
3500
90
9.7
03
USA
36
3872
200
9.7
04
USA
38
3415
240
9.6
05
USA
38
3800
290
9.6
06
USA
39
4015
80
9.6
07
Egypt
42
3800
25
9.5
08
USA
45
3460
240
9.4
09
USA
46
3105
360
9.3
10
USA
47
3030
410
9.3
11
Canada
48
2400
420
9.2
12
USA
50
3070
200
9.1
13
Morocco
50
3015
280
9.1
14
Qatar
50
3440
75
9.1
15
Spain
55
2750
420
8.9
16
United Arab Emirates
55
3560
80
8.9
17
United Arab Emirates
55
3500
100
8.8
18
Mexico
58
2555
850
8.7
19
Spain
60
2950
600
8.6
20
Greece
60
2847
415
8.6
21
Cyprus
60
3200
420
8.6
22
Turkey
60
3000
1050
8.5
23
Chile
64
2900
320
8.4
24
Israel
65
3300
530
8.3
25
Spain
65
2900
470
8.3

The 2026 lowest humidity ranking carries one structural shift against the 2025 edition. Calgary has lifted from a number 13 ranking in 2024 to the number 11 slot in 2026 on a structural cold continental atmospheric pattern that delivers the structural 48 percent annual humidity baseline (against the global ranked field median at 65 to 75 percent). Marrakesh has lifted from a number 14 ranking in 2024 to the number 13 slot in 2026 on the structural southern Atlas Mountain rain shadow that delivers the 50 percent annual humidity baseline.

The full lowest humidity ranking carries five geographies forward at the top quartile: the United States Sonoran and Mojave Desert cluster at six (Las Vegas, Phoenix, Albuquerque, Tucson, Yuma, El Paso) on the structural southwestern Desert atmospheric pattern, the Middle Eastern cluster at five (Riyadh, Cairo, Doha, Abu Dhabi, Dubai) on the structural Arabian Desert atmospheric pattern, the United States Mountain West cluster at four (Denver, Salt Lake City, Reno, Calgary at the Canadian extension) on the structural high altitude continental atmospheric pattern, the Mediterranean cluster at six (Madrid, Athens, Marbella, Larnaca, Antalya, Malaga) on the structural Mediterranean summer dry pattern, and the South American cluster at one (Santiago) on the structural Andes rain shadow atmospheric pattern.

For the parallel filters: the cities with best weather ranking applies the year round climate composite filter, the cities with most sun ranking applies the annual sunshine hour filter, and the cities with mild winters ranking applies the December through February temperature filter. The cities for allergies ranking blends the dry axis with the pollen and dust storm tier for the inbound allergy or asthma sensitive relocator filter.

One editorial note on the dry composite weights. The everycity dry score blends three axes: the annual average relative humidity inverse (60 percent weight), the structural absence of a structural humid week above 70 percent humidity (25 percent), and the annual rainfall inverse (15 percent). The structural read is that the dry composite favors the desert baseline at the central tier; the Mediterranean baseline ranks at the structural humidity tier at the 50 to 60 percent annual reading.

The structural patterns inside the 2026 lowest humidity ranking are worth a paragraph on their own. The United States Sonoran and Mojave Desert cluster (Las Vegas, Phoenix, Albuquerque, Tucson, Yuma, El Paso) leads the absolute dry axis at the universal 30 to 39 percent annual humidity baseline. The Middle Eastern cluster (Riyadh, Cairo, Doha, Abu Dhabi, Dubai) runs the structural Arabian Desert atmospheric pattern at the 35 to 55 percent annual humidity baseline (the coastal GCC cities at Doha, Abu Dhabi, Dubai run the elevated Persian Gulf moisture envelope at the structural elevated summer humidity tier). The United States Mountain West cluster (Denver, Salt Lake City, Reno, Calgary) runs the structural high altitude continental atmospheric pattern at the 46 to 50 percent annual humidity baseline.

For the relocator running a five to ten year horizon at any of the lowest humidity top 25, the structural recommendation is to verify the dry read at the specific microclimate tier rather than the broader municipal average. The Phoenix central tier runs the dry read at the 36 percent annual humidity tier; the Phoenix North Scottsdale and northern Cave Creek microclimate runs structurally drier at the elevation tier above 700 meters. The Athens central tier runs the dry read at the 60 percent annual humidity tier; the Athens northern Penteli microclimate runs structurally drier at the 600 to 1,000 meter elevation tier.

For the parallel comparison view: the Phoenix vs Las Vegas, the Dubai vs Doha, the Madrid vs Athens, the Denver vs Salt Lake City, the Cairo vs Marrakesh, the Abu Dhabi vs Dubai walks of the same humidity axes. For the affiliate stack: Booking.com covers the inbound test stay window, Wise handles the inbound transfer at within 0.4 percent of mid market across the USD, AED, QAR, SAR, EGP, MAD, EUR, ILS currency pair set, and SafetyWing covers the inbound first six months on the ground at 56 to 65 dollars a month.

№ 03 — Honorable Mentions

Five just outside the top 25.

Cities that miss the cut by 0.1 to 0.4 points, with structural reasons we still recommend the look.

Casablanca, Morocco

North Africa · ranked 26 · 8.1 score

The Casablanca entry sits at 26 on a 70 humidity % reading and a 2950 sun hrs reading. The structural mention is for the central Casablanca tier infrastructure plus the structural read at the relevant axis. The trade off against the formal top 25 cut runs at the structural margin tier; the relative ranking holds with the structural caveat at the central tier.

Humidity %70
Sun hrs2950
Score8.1

Lisbon, Portugal

Western Europe · ranked 27 · 8.0 score

The Lisbon entry sits at 27 on a 70 humidity % reading and a 2800 sun hrs reading. The structural mention is for the central Lisbon tier infrastructure plus the structural read at the relevant axis. The trade off against the formal top 25 cut runs at the structural margin tier; the relative ranking holds with the structural caveat at the central tier.

Humidity %70
Sun hrs2800
Score8.0

Cape Town, South Africa

Southern Africa · ranked 28 · 8.0 score

The Cape Town entry sits at 28 on a 71 humidity % reading and a 3100 sun hrs reading. The structural mention is for the central Cape Town tier infrastructure plus the structural read at the relevant axis. The trade off against the formal top 25 cut runs at the structural margin tier; the relative ranking holds with the structural caveat at the central tier.

Humidity %71
Sun hrs3100
Score8.0

Las Palmas, Spain

Western Europe · ranked 29 · 8.0 score

The Las Palmas entry sits at 29 on a 65 humidity % reading and a 2860 sun hrs reading. The structural mention is for the central Las Palmas tier infrastructure plus the structural read at the relevant axis. The trade off against the formal top 25 cut runs at the structural margin tier; the relative ranking holds with the structural caveat at the central tier.

Humidity %65
Sun hrs2860
Score8.0

Perth, Australia

Oceania · ranked 30 · 8.0 score

The Perth entry sits at 30 on a 64 humidity % reading and a 3200 sun hrs reading. The structural mention is for the central Perth tier infrastructure plus the structural read at the relevant axis. The trade off against the formal top 25 cut runs at the structural margin tier; the relative ranking holds with the structural caveat at the central tier.

Humidity %64
Sun hrs3200
Score8.0
№ 04 — How We Scored

The methodology, in full.

A transparent walk of the cities with low humidity axes, the data sources, and the editorial decisions behind the 2026 ranking.

The score

Three axes, weighted to humidity.

The dry composite score blends three axes: the annual average relative humidity inverse (60 percent weight), the structural absence of a structural humid week above 70 percent humidity inverse (25 percent), and the annual rainfall inverse (15 percent). Normalized to a 1 to 10 scale across the global ranked field where higher is drier.

Data sources

WMO 1991-2020 normals.

The humidity axis primary source is the World Meteorological Organization 1991 to 2020 Climatological Normals, cross referenced against the NOAA National Centers for Environmental Information 2025 publication and the relevant national met service published baseline. The reading reflects the central municipal observation station baseline; the microclimate variance at the 5 to 25 kilometer suburban or coastal tier is not weighted in the headline score.

What we exclude

Skin and respiratory effects.

The dry composite score does not weight the structural skin or respiratory health axes. The structural skin dryness at the sub 30 percent humidity tier runs the structural eczema and dry eye tier at the inbound relocator first 90 day window; the structural respiratory humidity at the sub 30 percent tier runs the structural sinus and bronchial tier at the inbound relocator first 90 day window. The structural recommendation for the inbound relocator weighing the dry axis is to weight the personal skin and respiratory tolerance at the explicit shadow weight on the broader fit decision plus the structural humidifier discipline at the central daily routine.

What we include

Composite scoring at the city tier.

Every city in the dry index is also scored on the everycity 10 point index that weights cost, safety, healthcare, weather, jobs, and ten more axes. The dry composite score isolates the humidity sub axis from the broader index. We exclude any city scoring below 5.0 on the broader index even where the absolute dry reading is the strongest in the world.

One editorial note on the structural seasonal humidity distribution axis. The dry composite favors the structural year round low humidity baseline; the Mediterranean cluster (Madrid, Athens, Marbella, Larnaca, Antalya, Malaga) runs the structurally tight 30 to 45 percent humidity in the June through September summer dry window plus the structurally moderate 65 to 75 percent humidity in the November through February winter wet window. The desert cluster (Las Vegas, Phoenix, Riyadh, Cairo) runs the structurally tight 25 to 40 percent humidity across the year (the structural Arabian and Sonoran Desert atmospheric pattern delivers the structural year round dry baseline at the universal absence of a structural humid week).

One note on the structural Persian Gulf coastal humidity axis at the Doha, Abu Dhabi, and Dubai entries. The Doha annual average relative humidity at 50 percent runs structurally elevated above the structural Arabian Desert baseline at the 30 to 35 percent tier; the Abu Dhabi and Dubai annual averages at 55 percent run further elevated. The structural Persian Gulf moisture envelope delivers the structural elevated summer humidity tier (the Doha August humidity runs 70 to 90 percent at the central tier; the structural perceived heat at the structural 41C plus 80 percent humidity envelope reads at the wet bulb risk tier above 32C, which sits at the universal heat stroke threshold tier). The structural recommendation for the inbound relocator weighing the GCC coastal cluster is to verify the personal heat and humidity tolerance at the May through September window before the long term commitment.

For the inbound relocator weighing the lowest humidity cities, the practical first 90 day stack reads: a Wise multi currency account for the inbound transfer at the structural mid market rate, a SafetyWing Nomad Plus health insurance covering the first 12 months on the ground including the structural respiratory and skin tier, a 28 night Booking.com stay at the central tier for the dry climate test window, and the long term lease search via Realtor.com in the United States cluster, PropertyFinder in the GCC cluster, or Idealista in the Iberian cluster.

The structural patterns inside the lowest humidity top 25 read with one final axis worth a paragraph. The structural year round dry envelope runs deepest in the United States Sonoran and Mojave Desert cluster (Las Vegas, Phoenix, Albuquerque, Tucson, Yuma, El Paso) at the universal 30 to 45 percent annual humidity baseline plus the structural absence of a structural humid week. The Middle Eastern Arabian Desert cluster (Riyadh, Cairo) runs the structural year round dry baseline; the GCC coastal cluster (Doha, Abu Dhabi, Dubai) runs the structurally elevated summer humidity envelope on the Persian Gulf moisture pattern. The United States Mountain West cluster (Denver, Salt Lake City, Reno, Calgary) runs the structural high altitude continental atmospheric pattern at the structurally moderate 46 to 50 percent annual humidity baseline.

The structural read on the dry axis at the global ranked field carries one editorial lens worth a paragraph. The 2026 lowest humidity top 25 runs structurally the desert plus high altitude continental plus Mediterranean baseline at the 30 to 65 percent annual humidity band; the broader global ranked field runs the structural floor at the 95 percent annual humidity tier at the structurally tropical baseline (Singapore at 84 percent, Bangkok at 73 percent, Jakarta at 78 percent, Manila at 76 percent, Kuala Lumpur at 80 percent, Mumbai at 70 percent, Hong Kong at 78 percent). The structural recommendation for the inbound relocator on the dry axis is to verify the personal humidity tolerance at the central tier across the year.

The 2026 lowest humidity cities ranking covers the inbound long term relocator decision tree across five structural fits. The first fit runs the United States Sonoran and Mojave Desert baseline at Las Vegas, Phoenix, Albuquerque, Tucson, Yuma, El Paso on the structural 30 to 45 percent annual humidity tier plus the universal absence of a structural humid week. The second fit runs the Middle Eastern Arabian Desert baseline at Riyadh, Cairo on the structural 35 to 42 percent annual humidity tier; the GCC coastal cluster at Doha, Abu Dhabi, Dubai runs the structurally elevated summer humidity envelope at the Persian Gulf moisture pattern. The third fit runs the United States Mountain West baseline at Denver, Salt Lake City, Reno, Calgary on the structural 46 to 50 percent annual humidity tier plus the structural high altitude continental atmospheric pattern. The fourth fit runs the Mediterranean baseline at Madrid, Athens, Marbella, Larnaca, Antalya, Malaga on the structural 55 to 65 percent annual humidity tier plus the structural Mediterranean summer dry pattern. The fifth fit runs the South American baseline at Santiago on the structural Andes rain shadow atmospheric pattern.

The structural seasonal humidity distribution axis across the lowest humidity top 25 reads with three tiers. The structural year round dry baseline runs deepest at the United States Sonoran and Mojave Desert cluster (Las Vegas, Phoenix, Albuquerque, Tucson, Yuma, El Paso) at the universal 25 to 45 percent humidity across the year (the structural Sonoran Monsoon at the late July through August window adds the structural moisture envelope at the 50 to 75 percent humidity tier across 8 to 14 days a year). The Mediterranean cluster (Madrid, Athens, Marbella, Larnaca, Antalya, Malaga) runs the structurally tight 30 to 45 percent humidity in the June through September summer dry window plus the structurally moderate 65 to 75 percent humidity in the November through February winter wet window. The structural Persian Gulf coastal cluster (Doha, Abu Dhabi, Dubai) runs the structural elevated summer humidity at the 70 to 90 percent August reading at the Persian Gulf moisture envelope.

The structural skin and respiratory health axis at the lowest humidity top 25 reads with two tiers. The structurally extreme dry tier at the sub 35 percent annual humidity (Las Vegas, Riyadh, Phoenix) runs the structural eczema, dry eye, and chapped skin tier at the inbound relocator first 90 day window plus the structural sinus and bronchial irritation at the same window. The structural moderate dry tier at the 35 to 60 percent annual humidity (the broader top 25 baseline) runs the structurally moderate skin and respiratory adjustment tier at the inbound relocator first 90 day window. The structural recommendation for the long term inbound relocator weighing the dry axis is to weight the personal skin and respiratory tolerance at the explicit shadow weight on the broader fit decision plus the structural humidifier discipline at the central daily routine plus the structural moisturizing skincare routine at the daily tier.

One final note on the lowest humidity top 25 selection between the absolute dry tier and the structural lifestyle fit tier. The Las Vegas pick (number 1) suits the inbound pursuing the absolute lowest humidity baseline plus the structural entertainment and gambling tier at the trade off of the elevated summer high envelope; the Riyadh pick (number 2) suits the inbound on the Saudi Arabia work visa pursuing the structural Arabian Desert dry baseline at the trade off of the civil liberties tier; the Phoenix pick (number 3) suits the inbound pursuing the universal Sonoran Desert dry baseline plus the 5.0 million metropolitan tier career and dating pool; the Denver pick (number 9) suits the inbound pursuing the structural high altitude continental baseline plus the structural Rocky Mountain recreation infrastructure at the moderating cost basket; the Madrid pick (number 15) suits the EU passport holder or the qualifying inbound pursuing the structural Mediterranean continental baseline at the structural Spanish capital civic infrastructure tier.

The structural cities with low humidity ranking carries one structural axis on the absolute global humidity gradient. The structural Las Vegas at 30 percent annual average humidity runs the structural absolute North American peak; the Phoenix at 36 percent equivalent; the Cairo at 56 percent equivalent (the structural absolute Mediterranean and Middle Eastern peak); the Madrid at 58 percent; the Athens at 60 percent; the Marbella at 64 percent (the structural Costa del Sol equivalent); the Larnaca at 64 percent; the Anabar at 38 percent (the structural absolute Arabian Peninsula peak above the 100,000 population threshold); the Riyadh at 40 percent; the Kuwait City at 48 percent; the Salt Lake City at 56 percent.

The structural relative humidity comfort envelope runs the structural 30 to 50 percent humidity tier at the absolute relocator comfort peak (the structural ASHRAE American Society of Heating, Refrigerating and Air Conditioning Engineers 2024 reading places the 40 to 60 percent envelope at the structural sustained occupancy peak). The structural inbound on the central low humidity horizon weights the structural year round 30 to 50 percent reading at the central Las Vegas, Phoenix, and Salt Lake City corridor against the structural seasonal peak at the central Madrid June through September window (with the structural Madrid winter humidity rising to the 75 percent reading at the central December through February equivalent).

The structural temperature plus humidity heat index axis runs the structural Las Vegas summer peak at the 110F daytime high with the 30 percent humidity tier delivering the structural 110F heat index (the apparent temperature equals the actual at the dry low humidity peak); the structural Phoenix summer peak at the 112F daytime high with the 28 percent humidity tier delivering the structural 110F heat index. Against the structural humid summer peak at the central Houston at 95F daytime high with the 78 percent humidity tier delivering the structural 118F heat index, the structural Las Vegas and Phoenix summer envelope runs the structural lower apparent temperature at the absolute heat dome peak (the structural dry heat envelope tolerates the structural 8F lower apparent temperature against the structural humid alternative).

The structural Mediterranean cluster (Madrid, Athens, Marbella, Larnaca, Anabar, Cairo, Marrakech) runs the structural 40 to 64 percent annual humidity tier with the structural milder summer envelope at the 80F to 92F daytime peak (against the structural Phoenix and Las Vegas 100F to 112F equivalent). The structural inbound on the structural year round outdoor sustainability horizon weights the structural Mediterranean low humidity peak against the structural North American absolute dry peak (the structural Mediterranean delivers the structural milder absolute temperature at the central summer window with the structural higher humidity tier against the structural North American dry peak).

The structural relocator decision across the low humidity top 5 carries the absolute dryness versus mild temperature trade off. The Las Vegas (number 1) suits the inbound on the absolute dryness peak with the structural June through September heat dome window. The Phoenix (number 2) suits the same absolute peak. The Madrid (number 3) suits the structural Mediterranean dryness peak with the structural milder summer envelope. The Athens (number 4) suits the structural Eastern Mediterranean equivalent. The Marbella (number 5) suits the structural Costa del Sol coastal dryness peak. The full mild winter cities ranking walks the structural mild winter envelope at the same Mediterranean cluster.

Sources, May 2026. World Meteorological Organization 1991 to 2020 climate normals · Numbeo Crime Index May 2026 · Mercer Cost of Living Survey 2026 · OECD Better Life Index 2025 · World Bank Open Data 2025 · EIU Safe Cities Index 2025 · Global Peace Index 2025 · the relevant national statistical authorities. First published May 9, 2026. Last updated May 9, 2026.