Ruwais weather in May

In May, Ruwais sees average daytime highs of 39°C and overnight lows near 25°C, with 0 mm of rain across 0 wet days and about 13.2 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 37°C in the first days to 40°C by the end. The sky is clear or mostly clear about 87% of the time in May, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of May to 13 h 24 min by month's end. Set against the rest of the year, May is Ruwais's 4th-clearest and 5th-windiest month. For the whole year in context, see Ruwais's year-round climate.

Daytime high
39°
5th warmest
Overnight low
25°
8th coldest
Rainfall
0 mm
0 wet days
Daylight
13 h 12 min
5:50 AM – 7:00 PM
Cloud cover
12%
4th clearest
Wind
15 km/h
5th windiest
Solar energy
7.7 kWh/m²
Travel score
0.8
out of 10

Ruwais is human settlement.

Founded
1970

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 37°C in the first days to 40°C by the end.

A typical May day in Ruwais reaches about 39°C in the afternoon and slips back to 25°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 43°C. Set against its neighbours, May runs about 5°C warmer than April and about 2°C cooler than June.

20°25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
13723
23724
33724
43724
53824
63824
73824
83824
93825
103825
113825
123925
133925
143925
153925
163925
173925
183925
193926
203926
213926
223926
234026
244026
254026
264026
274026
284026
294026
304026
314026

How May really feels in Ruwais

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
15 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ruwais weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 14°81.610.78.7
Feb25° / 15°71.111.29.1
Mar29° / 17°121.511.87.3
Apr34° / 21°40.712.53.9
May39° / 25°0013.20.8
Jun40° / 27°0013.50.0
Jul42° / 29°20.113.30.0
Aug42° / 29°00.112.80.0
Sep39° / 27°0012.10.6
Oct35° / 24°00.111.43.3
Nov30° / 20°20.410.87.0
Dec25° / 16°40.910.58.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 87% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 6% of May, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28713
38713
48812
58812
68911
78911
89010
99010
10919
11928
12928
13928
14937
15937
16937
17937
18946
19946
20946
21946
22955
23955
24955
25955
26964
27964
28964
29964
30964
31964

Chance of precipitation in May

Any precipitation

Ruwais gets around 0 mm of rain over 0 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 0% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the humid band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1383025600
2383026600
3373026600
4373026610
5363026710
6363026710
7353026710
8343026810
9343126810
10333126910
11323126910
123131271010
133031271010
142931281110
152731291120
162631291220
172531301320
182430301420
192329301520
202228311730
212027311830
221926312030
231825322140
241824322240
251722322450
261621312560
271520312770
281419312881
291418302991
3013162930101
3112152931111

Wind in May

Winds average 15 km/h in May.

Across May, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 54 min at the start of May to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over May. Sunrise moves from 6:00 AM to 5:45 AM, and sunset from 6:53 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:006:53
212.95:596:53
312.95:586:54
412.95:586:54
513.05:576:55
613.05:566:55
713.05:566:56
813.05:556:56
913.05:546:57
1013.15:546:57
1113.15:536:58
1213.15:526:58
1313.15:526:59
1413.15:516:59
1513.15:517:00
1613.25:507:00
1713.25:507:01
1813.25:507:01
1913.25:497:02
2013.25:497:02
2113.25:487:03
2213.35:487:03
2313.35:487:04
2413.35:477:04
2513.35:477:05
2613.35:477:05
2713.35:467:06
2813.35:467:06
2913.35:467:07
3013.45:467:07
3113.45:457:08

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 7.7 kWh/m² in May across the year — May's 7.7 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.5Intense
57.6Intense
67.6Intense
77.6Intense
87.6Intense
97.6Intense
107.7Intense
117.7Intense
127.7Intense
137.7Intense
147.7Intense
157.7Intense
167.7Intense
177.7Intense
187.7Intense
197.7Intense
207.8Intense
217.8Intense
227.7Intense
237.7Intense
247.7Intense
257.7Intense
267.7Intense
277.7Intense
287.7Intense
297.7Intense
307.7Intense
317.7Intense
Planning a trip in May

Hazard calendar for Ruwais

In seasonPeak

In May, Ruwais sits inside its cyclone and dust season. The full year is below, with each hazard's peak months called out.

Ruwais sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Ruwais sees seasonal dust haze (March–August), heaviest in July.

Cyclone
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Ruwais?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.8
Sightseeing
8th-best month of the year
4.3
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Ruwais.

What to pack for Ruwais in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Ruwais sees daytime highs around 39°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Ruwais in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 34°C and coldest in February near 20°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb20Refreshing
Mar22Refreshing
Apr25Warm
May29Tropical
Jun31Tropical
Jul33Tropical
Aug34Tropical
Sep33Tropical
Oct31Tropical
Nov28Warm
Dec24Refreshing

UV index in Ruwais in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ruwais peaks around May 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highHighMay 20UV 10Dec 17UV 5
UV index (midday)Level
Jan6High
Feb9Very high
Mar9Very high
Apr9Very high
May10Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep8Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Ruwais in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Ruwais is worst in July — around 85 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (November, 35 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModerateJul 2084 µg/m³Nov 2335 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb51Poor
Mar61Unhealthy
Apr60Unhealthy
May65Unhealthy
Jun69Unhealthy
Jul85Unhealthy
Aug79Unhealthy
Sep58Unhealthy
Oct45Poor
Nov35Moderate
Dec35Moderate
Location & terrain

Where is Ruwais?

Ruwais sits at 24.1°N, 52.7°E, 16 m above sea level, in United Arab Emirates. The nearest listed city is Zayed City, 111 km away.

Zayed CityMesaieedAl WakrahAth Thumāmah KhamsūnAth Thumāmah Sab‘ah wa Arba‘ūnAbu DhabiAth Thumāmah Sittah wa Arba‘ūnAl Maţār al ‘Atīq

Topography around Ruwais

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ruwais.

Within 3 km, the terrain around Ruwais has only modest variations in elevation — a maximum elevation change of 37 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 115 m; within 80 km, only modest variations in elevation — a maximum elevation change of 162 m.

The land around Ruwais is covered by bare terrain (69%) and artificial surfaces (30%) within 3 km, bare terrain (61%) and water (33%) within 16 km, and water (51%) and bare terrain (48%) within 80 km.

3 km
37 m
16 km
115 m
80 km
162 m
shrubsartificial surfacesbare terrainwater
May weather nearby: Zayed City 111 km · Mesaieed 154 km · Al Wakrah 164 km · Ath Thumāmah Khamsūn 171 km · Ath Thumāmah Sab‘ah wa Arba‘ūn 172 km · Abu Dhabi 173 km · Ath Thumāmah Sittah wa Arba‘ūn 173 km · Al Maţār al ‘Atīq 174 km

United Arab Emirates travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 63% of US
price level, 2024
GDP per capita
$50,274
2024
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.9
per 100k/yr, 2019
Income group
High
World Bank
English
Low
EF EPI 487

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ruwais (24.1103°, 52.7306°, elevation 16 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).