Umm Ruwaba weather in December

In December, Umm Ruwaba sees average daytime highs of 31°C and overnight lows near 18°C, with 0 mm of rain across 0 wet days and about 11.3 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 30°C by the end. The sky is clear or mostly clear about 81% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Umm Ruwaba's 2nd-clearest and 4th-windiest month. For the whole year in context, see Umm Ruwaba's year-round climate.

Daytime high: 31°; 11th warmest
Overnight low: 18°; 2nd coldest
Rainfall: 0 mm; 0 wet days
Daylight: 11 h 12 min; 7:14 AM – 6:29 PM
Cloud cover: 18%; 2nd clearest
Wind: 14 km/h; 4th windiest
Solar energy: 5.85 kWh/m²
Travel score: 6.1; out of 10

Umm Ruwaba is human settlement in Sudan.

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

← November Umm Ruwaba year-round climate January →Best places to visit in December

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 30°C by the end.

A typical December day in Umm Ruwaba reaches about 31°C in the afternoon and slips back to 18°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	33	32	32	32	32	32	32	32	32	32	31	31	31	31	31	31	31	31	31	31	31	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	20	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18	18	18	17	17	17	17	17	17	17	17

	Avg high (°C)	Avg low (°C)
1	33	20
2	32	19
3	32	19
4	32	19
5	32	19
6	32	19
7	32	19
8	32	19
9	32	19
10	32	19
11	31	18
12	31	18
13	31	18
14	31	18
15	31	18
16	31	18
17	31	18
18	31	18
19	31	18
20	31	18
21	31	18
22	30	18
23	30	18
24	30	17
25	30	17
26	30	17
27	30	17
28	30	17
29	30	17
30	30	17
31	30	17

How December really feels in Umm Ruwaba

Once humidity and wind are folded in, December averages 6 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Umm Ruwaba weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 17°	0	0	11.3	6.6
Feb	33° / 19°	0	0	11.6	5.0
Mar	36° / 22°	0	0.1	11.9	2.7
Apr	39° / 25°	2	0.5	12.3	0.8
May	39° / 27°	13	3.8	12.6	0.4
Jun	38° / 27°	25	7.1	12.7	1.3
Jul	34° / 25°	70	14.1	12.7	2.6
Aug	33° / 24°	83	14.5	12.4	3.3
Sep	35° / 24°	45	9.8	12.1	2.8
Oct	37° / 25°	13	3.7	11.7	2.0
Nov	35° / 22°	0	0	11.4	3.8
Dec	31° / 18°	0	0	11.3	6.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 10%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	90	90	90	89	89	89	89	89	89	89	89	89	90	91	91	91	91	91	91	92	91	91	91	91	89	89	89	89	89	88	88
Cloudier (%)	10	10	10	11	11	11	11	11	11	11	11	11	10	9	9	9	9	9	9	8	9	9	9	9	11	11	11	11	11	12	12

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	90	10
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	89	11
12	89	11
13	90	10
14	91	9
15	91	9
16	91	9
17	91	9
18	91	9
19	91	9
20	92	8
21	91	9
22	91	9
23	91	9
24	91	9
25	89	11
26	89	11
27	89	11
28	89	11
29	89	11
30	88	12
31	88	12

Chance of precipitation in December

Any precipitation

Umm Ruwaba gets around 0 mm of rain over 0 wet days in December. 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 0% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Rain chance (%)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in December

Winds average 14 km/h in December.

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	14	light breeze
2	14	light breeze
3	14	light breeze
4	14	light breeze
5	14	light breeze
6	14	light breeze
7	14	light breeze
8	14	light breeze
9	14	light breeze
10	14	light breeze
11	14	light breeze
12	14	light breeze
13	14	light breeze
14	14	light breeze
15	14	light breeze
16	14	light breeze
17	14	light breeze
18	14	light breeze
19	14	light breeze
20	14	light breeze
21	14	light breeze
22	14	light breeze
23	14	light breeze
24	14	light breeze
25	14	light breeze
26	14	light breeze
27	14	light breeze
28	14	light breeze
29	14	light breeze
30	14	light breeze
31	14	light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 min at the start of December to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:06 AM to 7:21 AM, and sunset from 6:24 PM to 6:36 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	11.3	11.3	11.3	11.3	11.3	11.3	11.3	11.3	11.3	11.3	11.3	11.3	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2
Sunrise (AM)	7:06	7:07	7:07	7:08	7:08	7:09	7:09	7:10	7:10	7:11	7:11	7:12	7:12	7:13	7:13	7:14	7:14	7:15	7:15	7:16	7:16	7:17	7:17	7:18	7:18	7:19	7:19	7:20	7:20	7:20	7:21
Sunset (PM)	6:24	6:24	6:24	6:24	6:25	6:25	6:25	6:26	6:26	6:26	6:27	6:27	6:27	6:28	6:28	6:29	6:29	6:29	6:30	6:30	6:31	6:31	6:32	6:32	6:33	6:33	6:34	6:34	6:35	6:35	6:36

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	7:06	6:24
2	11.3	7:07	6:24
3	11.3	7:07	6:24
4	11.3	7:08	6:24
5	11.3	7:08	6:25
6	11.3	7:09	6:25
7	11.3	7:09	6:25
8	11.3	7:10	6:26
9	11.3	7:10	6:26
10	11.3	7:11	6:26
11	11.3	7:11	6:27
12	11.3	7:12	6:27
13	11.2	7:12	6:27
14	11.2	7:13	6:28
15	11.2	7:13	6:28
16	11.2	7:14	6:29
17	11.2	7:14	6:29
18	11.2	7:15	6:29
19	11.2	7:15	6:30
20	11.2	7:16	6:30
21	11.2	7:16	6:31
22	11.2	7:17	6:31
23	11.2	7:17	6:32
24	11.2	7:18	6:32
25	11.2	7:18	6:33
26	11.2	7:19	6:33
27	11.2	7:19	6:34
28	11.2	7:20	6:34
29	11.2	7:20	6:35
30	11.2	7:20	6:35
31	11.2	7:21	6:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.85 kWh/m².

For context, solar energy here swings from a low near 5.83 kWh/m² to a high of 7.55 kWh/m² in April across the year — December's 5.85 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	6.0	6.0	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.9	5.9
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.0	Bright
2	6.0	Bright
3	5.9	Bright
4	5.9	Bright
5	5.9	Bright
6	5.9	Bright
7	5.9	Bright
8	5.9	Bright
9	5.9	Bright
10	5.9	Bright
11	5.9	Bright
12	5.8	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.8	Bright
17	5.8	Bright
18	5.8	Bright
19	5.8	Bright
20	5.8	Bright
21	5.8	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.9	Bright
31	5.9	Bright

Planning a trip in December

Hazard calendar for Umm Ruwaba

In seasonPeak

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

Umm Ruwaba sees seasonal dust haze (March–July), heaviest in April.

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Umm Ruwaba?

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

6.1

Sightseeing

2nd-best month of the year

8.8

Beach & pool

2nd-best month of the year

December is a reasonable time to visit Umm Ruwaba for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Umm Ruwaba in December

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

In December, Umm Ruwaba sees daytime highs around 31°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Umm Ruwaba in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Umm Ruwaba peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 8 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	10	12	13	12	9	11	10	13	11	11	9	8
Level	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Very high	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	10	Extreme
Feb	12	Extreme
Mar	13	Extreme
Apr	12	Extreme
May	9	Very high
Jun	11	Extreme
Jul	10	Very high
Aug	13	Extreme
Sep	11	Extreme
Oct	11	Extreme
Nov	9	Very high
Dec	8	Very high

Air quality in Umm Ruwaba in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Umm Ruwaba is worst in March — around 49 µg/m³ PM2.5 (poor), about 3.6× the cleanest month (August, 14 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	43	43	49	40	25	21	17	14	16	22	24	34
Level	Poor	Poor	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	43	Poor
Feb	43	Poor
Mar	49	Poor
Apr	40	Poor
May	25	Moderate
Jun	21	Moderate
Jul	17	Moderate
Aug	14	Moderate
Sep	16	Moderate
Oct	22	Moderate
Nov	24	Moderate
Dec	34	Moderate

Location & terrain

Where is Umm Ruwaba?

Umm Ruwaba sits at 12.9°N, 31.2°E, 457 m above sea level, in Sudan. The nearest listed city is Ar Rahad, 65 km away.

Topography around Umm Ruwaba

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

Within 3 km, the terrain around Umm Ruwaba has only modest variations in elevation — a maximum elevation change of 13 m around an average of 451 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, large variations in elevation — a maximum elevation change of 974 m.

The land around Umm Ruwaba is covered by grassland (38%), cropland (31%) and artificial surfaces (29%) within 3 km, cropland (64%) and grassland (33%) within 16 km, and grassland (56%) and cropland (40%) within 80 km.

3 km

13 m

grassland 38%

16 km

30 m

cropland 64%

80 km

974 m

grassland 56%

shrubsgrasslandcroplandartificial surfacesbare terrain

← November Umm Ruwaba year-round climate January →Best places to visit in December

December weather nearby: Ar Rahad 65 km · Tandaltī 72 km · El Obeid 113 km · Bārah 127 km · Al Jazeera Aba 158 km · Kosti 159 km · Abu Jibeha 161 km · Rabak 168 km

Sudan travel facts

Travel advisory: Level 4; Do Not Travel
Power plugs: Type C / D / F / G; 230 V · 50 Hz
Prices: ≈ 215% of US; price level, 2025
GDP per capita: $1,165; 2025
Happiness: 4.1 / 10; World Happiness, 2017
Homicide rate: 5.1; per 100k, 2008
Road deaths: 26.8; per 100k/yr, 2019
Income group: Low; World Bank
English: Very low; EF EPI 421

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 Umm Ruwaba (12.9061°, 31.2158°, elevation 457 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. 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).

	Avg high (°C)	Avg low (°C)
1	33	20
2	32	19
3	32	19
4	32	19
5	32	19
6	32	19
7	32	19
8	32	19
9	32	19
10	32	19
11	31	18
12	31	18
13	31	18
14	31	18
15	31	18
16	31	18
17	31	18
18	31	18
19	31	18
20	31	18
21	31	18
22	30	18
23	30	18
24	30	17
25	30	17
26	30	17
27	30	17
28	30	17
29	30	17
30	30	17
31	30	17

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	90	10
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	89	11
12	89	11
13	90	10
14	91	9
15	91	9
16	91	9
17	91	9
18	91	9
19	91	9
20	92	8
21	91	9
22	91	9
23	91	9
24	91	9
25	89	11
26	89	11
27	89	11
28	89	11
29	89	11
30	88	12
31	88	12

	Rain chance (%)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	33	20
2	32	19
3	32	19
4	32	19
5	32	19
6	32	19
7	32	19
8	32	19
9	32	19
10	32	19
11	31	18
12	31	18
13	31	18
14	31	18
15	31	18
16	31	18
17	31	18
18	31	18
19	31	18
20	31	18
21	31	18
22	30	18
23	30	18
24	30	17
25	30	17
26	30	17
27	30	17
28	30	17
29	30	17
30	30	17
31	30	17

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	90	10
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	89	11
12	89	11
13	90	10
14	91	9
15	91	9
16	91	9
17	91	9
18	91	9
19	91	9
20	92	8
21	91	9
22	91	9
23	91	9
24	91	9
25	89	11
26	89	11
27	89	11
28	89	11
29	89	11
30	88	12
31	88	12

	Rain chance (%)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	33	20
2	32	19
3	32	19
4	32	19
5	32	19
6	32	19
7	32	19
8	32	19
9	32	19
10	32	19
11	31	18
12	31	18
13	31	18
14	31	18
15	31	18
16	31	18
17	31	18
18	31	18
19	31	18
20	31	18
21	31	18
22	30	18
23	30	18
24	30	17
25	30	17
26	30	17
27	30	17
28	30	17
29	30	17
30	30	17
31	30	17

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	90	10
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	89	11
12	89	11
13	90	10
14	91	9
15	91	9
16	91	9
17	91	9
18	91	9
19	91	9
20	92	8
21	91	9
22	91	9
23	91	9
24	91	9
25	89	11
26	89	11
27	89	11
28	89	11
29	89	11
30	88	12
31	88	12

	Rain chance (%)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100