Umluj weather in January

In January, Umluj sees average daytime highs of 23°C and overnight lows near 19°C, with 11 mm of rain across 1.8 wet days and about 10.6 hours of daylight. It is the 12th-warmest and 2nd-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 73% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 30 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Umluj's 12th-clearest and 3rd-windiest month. For the whole year in context, see Umluj's year-round climate.

Daytime high
23°
12th warmest
Overnight low
19°
1st coldest
Rainfall
11 mm
1.8 wet days
Daylight
10 h 36 min
7:22 AM – 5:58 PM
Cloud cover
26%
12th clearest
Wind
18 km/h
3rd windiest
Solar energy
4.42 kWh/m²
Travel score
8.8
out of 10

Umluj is human settlement in Saudi Arabia.

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

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 Umluj reaches about 23°C in the afternoon and slips back to 19°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12420
22320
32320
42320
52319
62319
72319
82319
92319
102319
112319
122319
132319
142319
152319
162319
172319
182319
192319
202319
212319
222319
232319
242319
252319
262319
272319
282319
292319
302319
312319

How January really feels in Umluj

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.

Umluj weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 19°111.810.68.8
Feb23° / 19°40.911.19.1
Mar25° / 21°20.611.89.4
Apr27° / 23°0012.68.9
May29° / 26°0013.27.6
Jun30° / 27°0013.56.7
Jul31° / 29°0013.46.0
Aug32° / 29°0012.95.8
Sep31° / 28°0012.26.3
Oct30° / 27°30.411.46.9
Nov27° / 24°111.310.88.4
Dec25° / 21°101.510.59.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 73% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28119
38119
48119
58119
68119
78119
88218
98317
108317
118317
128416
138515
148515
158515
168515
178614
188614
198515
208515
218515
228515
238515
248515
258515
268515
278515
288515
298515
308515
318515

Chance of precipitation in January

Any precipitation

Umluj gets around 11 mm of rain over 1.8 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
17
27
37
47
57
67
77
86
96
106
115
125
135
145
155
165
175
185
195
205
215
225
235
245
255
265
275
285
295
305
315

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 68% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15823145
25823145
36022135
46221134
56321124
66420124
76619114
86719104
96818104
10701893
11711793
12721783
13721783
14721783
15731773
16731773
17721774
18721774
19711874
20711874
21711874
22711874
23701974
24701974
25681985
26681985
27681985
28671995
29671995
306619105
316519106

Wind in January

Winds average 18 km/h in January.

Across January, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 30 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 18 minutes over January. Sunrise moves from 7:20 AM to 7:19 AM, and sunset from 5:48 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.57:205:48
210.57:205:49
310.57:215:49
410.57:215:50
510.57:215:51
610.57:215:51
710.57:215:52
810.57:225:53
910.57:225:53
1010.57:225:54
1110.57:225:55
1210.67:225:55
1310.67:225:56
1410.67:225:57
1510.67:225:58
1610.67:225:58
1710.67:225:59
1810.67:226:00
1910.67:226:00
2010.77:226:01
2110.77:226:02
2210.77:226:03
2310.77:216:03
2410.77:216:04
2510.77:216:05
2610.77:216:06
2710.87:216:06
2810.87:206:07
2910.87:206:08
3010.87:206:08
3110.87:196:09

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.42 kWh/m².

For context, solar energy here swings from a low near 4.22 kWh/m² to a high of 7.68 kWh/m² in June across the year — January's 4.42 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.6Bright
234.6Bright
244.6Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in January

Hazard calendar for Umluj

In seasonPeak

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

Umluj sees seasonal dust haze (April–June), heaviest in May.

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

Is January a good time to visit Umluj?

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

8.8
Sightseeing
5th-best month of the year
6.7
Beach & pool
12th-best month of the year

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

What to pack for Umluj in January

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

In January, Umluj sees daytime highs around 23°C and nights near 19°C. Worth packing: light clothes.

light clothes

Sea temperature near Umluj in January

The nearest coast averages about 25°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in August at about 30°C and coldest in February near 24°C.

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

22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb24Refreshing
Mar24Refreshing
Apr25Warm
May27Warm
Jun28Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov28Warm
Dec26Warm

UV index in Umluj 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 Umluj peaks around June 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highExtremeVery highHighModerateJun 11UV 11Dec 19UV 4
UV index (midday)Level
Jan5Moderate
Feb7Very high
Mar10Very high
Apr9Very high
May11Extreme
Jun11Extreme
Jul10Very high
Aug11Extreme
Sep10Very high
Oct8Very high
Nov6High
Dec4Moderate

Air quality in Umluj 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 Umluj is worst in April — around 31 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1431 µg/m³Nov 1317 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb22Moderate
Mar29Moderate
Apr31Moderate
May27Moderate
Jun23Moderate
Jul18Moderate
Aug21Moderate
Sep22Moderate
Oct18Moderate
Nov16Moderate
Dec22Moderate
Location & terrain

Where is Umluj?

Umluj sits at 25.0°N, 37.3°E, 4 m above sea level, in Saudi Arabia. The nearest listed city is Yanbu, 131 km away.

YanbuAl WajhAl UlaBadr ḨunaynMarsa AlamSulţānahMedinaDuba

Topography around Umluj

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

Within 3 km, the terrain around Umluj has only modest variations in elevation — a maximum elevation change of 138 m around an average of 25 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 291 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,860 m.

The land around Umluj is covered by water (43%) and bare terrain (40%) within 3 km, bare terrain (50%) and water (48%) within 16 km, and bare terrain (61%) and water (38%) within 80 km.

3 km
138 m
16 km
291 m
80 km
1,860 m
shrubsgrasslandartificial surfacesbare terrainwater
January weather nearby: Yanbu 131 km · Al Wajh 157 km · Al Ula 188 km · Badr Ḩunayn 207 km · Marsa Alam 240 km · Sulţānah 241 km · Medina 245 km · Duba 303 km

Saudi Arabia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type G
230 V · 60 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$34,537
2025
Happiness
6.8 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2019
Road deaths
35.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 404

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 Umluj (25.0213°, 37.2685°, elevation 4 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. 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).