Umm Ruwaba in Winter
In winter (December, January and February), Umm Ruwaba sees average daytime highs around 31°C and overnight lows near 18°C, with 0 mm of rain over about 0 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 77% of the time across winter, and the air most often feels dry.
Winter is Umm Ruwaba's best season of the year to visit on our travel score. For the whole year in context, see Umm Ruwaba's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 0 mm
- 0 wet days
- Avg wind
- 14 km/h
- Travel score
- 5.9
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Umm Ruwaba in Winter
Across winter, daytime highs hold fairly steady around 31°C.
A typical winter day in Umm Ruwaba reaches about 31°C and drops to 18°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Umm Ruwaba
Once humidity and wind are folded in, winter brings about 24 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Umm Ruwaba weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| 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 Winter
The sky is clear or mostly clear about 77% of the time across winter.
Chance of precipitation in Winter
Umm Ruwaba gets around 0 mm of rain over 0 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 14 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 18 min in early December to 11 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 6.2 kWh/m².
Hazard calendar for Umm Ruwaba
None of Umm Ruwaba's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Umm Ruwaba sees seasonal dust haze (March–July), heaviest in April.
Is winter a good time to visit Umm Ruwaba?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter 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 Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Umm Ruwaba sees daytime highs around 31°C and nights near 18°C. Pack light clothes and sun protection.
UV index in Umm Ruwaba in Winter
Clear-sky midday UV across winter averages 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 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 Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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 |
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.
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.