Ar Rumaylah weather in January

In January, Ar Rumaylah sees average daytime highs of 23°C and overnight lows near 18°C, with 23 mm of rain across 2.8 wet days and about 10.6 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 69% of the time in January, and the air most often feels comfortable.

Daylight stretches from about 10 h 24 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Ar Rumaylah's 12th-clearest and 8th-windiest month. For the whole year in context, see Ar Rumaylah's year-round climate.

Daytime high
23°
12th warmest
Overnight low
18°
1st coldest
Rainfall
23 mm
2.8 wet days
Daylight
10 h 36 min
7:10 AM – 5:45 PM
Cloud cover
30%
12th clearest
Wind
13 km/h
8th windiest
Solar energy
4.11 kWh/m²
Travel score
8.6
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical January day in Ar Rumaylah reaches about 23°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12418
22418
32418
42418
52418
62418
72418
82318
92318
102318
112318
122318
132318
142318
152318
162318
172318
182318
192318
202318
212318
222317
232317
242317
252317
262317
272318
282318
292318
302318
312318

How January really feels in Ar Rumaylah

Once humidity and wind are folded in, January averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ar Rumaylah weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 18°232.810.68.6
Feb24° / 18°171.811.18.9
Mar26° / 20°20211.88.4
Apr30° / 24°50.812.66.3
May35° / 27°0013.23.7
Jun37° / 30°0013.62.1
Jul38° / 32°10.113.41.1
Aug39° / 32°0012.91.0
Sep37° / 30°0012.22.3
Oct34° / 27°10.211.44.5
Nov29° / 23°40.810.87.3
Dec25° / 20°132.310.48.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 17%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28317
38317
48317
58218
68218
78119
88119
98119
108020
118020
128020
138020
148020
158020
168020
178119
188218
198218
208218
218416
228416
238416
248515
258515
268515
278515
288614
298614
308614
318614

Chance of precipitation in January

Any precipitation

Ar Rumaylah gets around 23 mm of rain over 2.8 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 9% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
47
57
68
78
89
99
109
1110
1210
1310
1411
1511
1611
1711
1811
1911
2011
2111
2210
2310
2410
259
269
279
289
298
308
318

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the comfortable band about 36% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
120333710
220333710
32133389
42133388
52233387
62333386
72433386
82533375
92633374
102734363
112834353
122934342
133034342
143135332
153235322
163235311
173336301
183336291
193437281
203437281
213338271
223339272
233239272
243140272
253140272
263040282
272940282
282840293
292840293
302740293
312740294

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 24 min at the start of January to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 7:08 AM to 7:07 AM, and sunset from 5:35 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.47:085:35
210.47:085:35
310.57:095:36
410.57:095:37
510.57:095:37
610.57:095:38
710.57:105:39
810.57:105:39
910.57:105:40
1010.57:105:41
1110.57:105:41
1210.57:105:42
1310.57:105:43
1410.67:105:43
1510.67:105:44
1610.67:105:45
1710.67:105:46
1810.67:105:46
1910.67:105:47
2010.67:105:48
2110.67:105:49
2210.77:105:49
2310.77:105:50
2410.77:095:51
2510.77:095:51
2610.77:095:52
2710.77:095:53
2810.87:085:54
2910.87:085:54
3010.87:085:55
3110.87:075:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.11 kWh/m².

For context, solar energy here swings from a low near 3.96 kWh/m² to a high of 7.56 kWh/m² in May across the year — January's 4.11 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Moderate
44.0Moderate
54.0Moderate
64.0Moderate
74.0Moderate
84.0Moderate
94.0Moderate
104.0Moderate
114.0Moderate
124.0Moderate
134.0Bright
144.0Bright
154.0Bright
164.0Bright
174.1Bright
184.1Bright
194.1Bright
204.2Bright
214.2Bright
224.2Bright
234.3Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.5Bright
294.5Bright
304.5Bright
314.6Bright
Planning a trip in January

Hazard calendar for Ar Rumaylah

In seasonPeak

None of Ar Rumaylah's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

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

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

Is January a good time to visit Ar Rumaylah?

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

8.6
Sightseeing
3rd-best month of the year
6.7
Beach & pool
8th-best month of the year

January is one of the better times to visit Ar Rumaylah for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ar Rumaylah in January

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

In January, Ar Rumaylah sees daytime highs around 23°C and nights near 18°C. Worth packing: light clothes.

light clothes

Sea temperature near Ar Rumaylah in January

The nearest coast averages about 23°C in January — 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 33°C and coldest in February near 22°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
Jan23Refreshing
Feb22Refreshing
Mar23Refreshing
Apr25Warm
May29Tropical
Jun31Tropical
Jul33Tropical
Aug33Tropical
Sep33Tropical
Oct31Tropical
Nov28Tropical
Dec25Warm

UV index in Ar Rumaylah in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ar Rumaylah peaks around June 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highHighModerateJun 14UV 10Dec 17UV 4
UV index (midday)Level
Jan5High
Feb8Very high
Mar8Very high
Apr9Very high
May10Very high
Jun10Extreme
Jul9Very high
Aug9Very high
Sep9Very high
Oct7Very high
Nov5High
Dec4Moderate

Air quality in Ar Rumaylah in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ar Rumaylah is worst in July — around 92 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (December, 37 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJul 1991 µg/m³Dec 1037 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb56Unhealthy
Mar65Unhealthy
Apr70Unhealthy
May77Unhealthy
Jun80Unhealthy
Jul92Unhealthy
Aug86Unhealthy
Sep67Unhealthy
Oct51Poor
Nov37Poor
Dec37Poor
Location & terrain

Where is Ar Rumaylah?

Ar Rumaylah sits at 25.4°N, 55.4°E, 2 m above sea level, in United Arab Emirates. The nearest listed city is Ajman, 5.0 km away.

Topography around Ar Rumaylah

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

Within 3 km, the terrain around Ar Rumaylah has only modest variations in elevation — a maximum elevation change of 20 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,562 m.

The land around Ar Rumaylah is covered by artificial surfaces (48%) and water (45%) within 3 km, water (47%), artificial surfaces (28%) and bare terrain (21%) within 16 km, and bare terrain (48%) and water (46%) within 80 km.

3 km
20 m
16 km
67 m
80 km
1,562 m
treesshrubsgrasslandartificial surfacesbare terrainwater
January weather nearby: Ajman 5.0 km · Halwan 7.0 km · Al Jurf 8.0 km · Sharjah 8.0 km · Al Ḩamīdīyah 10 km · Al Majaz 10 km · Al Qusais 1 15 km · Al Waheda 16 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 Ar Rumaylah (25.4034°, 55.4334°, elevation 2 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).