Umm Ruwaba weather in September

In September, Umm Ruwaba sees average daytime highs of 35°C and overnight lows near 24°C, with 45 mm of rain across 9.8 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 33°C in the first days to 36°C by the end. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Umm Ruwaba's 10th-clearest and 12th-windiest month. For the whole year in context, see Umm Ruwaba's year-round climate.

Daytime high
35°
6th warmest
Overnight low
24°
7th coldest
Rainfall
45 mm
9.8 wet days
Daylight
12 h 06 min
6:47 AM – 6:52 PM
Cloud cover
49%
10th clearest
Wind
9 km/h
12th windiest
Solar energy
6.17 kWh/m²
Travel score
2.8
out of 10

Umm Ruwaba is human settlement in Sudan.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 33°C in the first days to 36°C by the end.

A typical September day in Umm Ruwaba reaches about 35°C in the afternoon and slips back to 24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 37°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63424
73424
83424
93424
103424
113424
123424
133424
143424
153524
163524
173524
183524
193524
203524
213524
223524
233524
243524
253625
263625
273625
283625
293625
303625

How September really feels in Umm Ruwaba

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Umm Ruwaba weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 17°0011.36.6
Feb33° / 19°0011.65.0
Mar36° / 22°00.111.92.7
Apr39° / 25°20.512.30.8
May39° / 27°133.812.60.4
Jun38° / 27°257.112.71.3
Jul34° / 25°7014.112.72.6
Aug33° / 24°8314.512.43.3
Sep35° / 24°459.812.12.8
Oct37° / 25°133.711.72.0
Nov35° / 22°0011.43.8
Dec31° / 18°0011.36.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26436
36436
46535
56634
66733
76733
86832
96832
106832
116832
126931
136931
146931
156931
166931
176931
186931
196832
206832
216832
226832
236832
246931
256931
266931
277030
287129
297228
307228

Chance of precipitation in September

Any precipitation

Umm Ruwaba gets around 45 mm of rain over 9.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
239
339
438
537
637
736
835
935
1034
1133
1233
1332
1431
1531
1630
1730
1830
1929
2029
2129
2229
2329
2428
2528
2628
2727
2827
2926
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10025147
20025147
30025246
40025345
50025345
60025444
70035443
80035443
90035542
100035641
110035740
120045739
130045838
140045937
150055936
161055935
171066033
181166032
191176130
201186129
212196028
2222106026
2322116025
2432126023
2532136022
2632146120
2733156019
2843166017
2943176016
3053176114

Wind in September

Winds average 9 km/h in September, the calmest month.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 6:47 AM to 6:47 AM, and sunset from 7:02 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:477:02
212.26:477:02
312.26:477:01
412.26:477:00
512.26:477:00
612.26:476:59
712.26:476:58
812.26:476:57
912.26:476:57
1012.16:476:56
1112.16:476:55
1212.16:476:55
1312.16:476:54
1412.16:476:53
1512.16:476:52
1612.16:476:52
1712.16:476:51
1812.06:476:50
1912.06:476:49
2012.06:476:49
2112.06:476:48
2212.06:476:47
2312.06:476:46
2412.06:476:46
2512.06:476:45
2611.96:476:44
2711.96:476:44
2811.96:476:43
2911.96:476:42
3011.96:476:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.17 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 — September's 6.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Umm Ruwaba

In seasonPeak

None of Umm Ruwaba's seasonal hazards are active in September. 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 September a good time to visit Umm Ruwaba?

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

2.8
Sightseeing
6th-best month of the year
5.7
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Umm Ruwaba.

What to pack for Umm Ruwaba in September

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

In September, Umm Ruwaba sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Umm Ruwaba in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highMar 17UV 13Dec 12UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr12Extreme
May9Very high
Jun11Extreme
Jul10Very high
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Umm Ruwaba in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1548 µg/m³Aug 1714 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb43Poor
Mar49Poor
Apr40Poor
May25Moderate
Jun21Moderate
Jul17Moderate
Aug14Moderate
Sep16Moderate
Oct22Moderate
Nov24Moderate
Dec34Moderate
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.

El ObeidBārahAl Jazeera AbaKostiAbu JibehaRabak

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
16 km
30 m
80 km
974 m
shrubsgrasslandcroplandartificial surfacesbare terrain
September 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).