Climate averages 1991–2020
Khartoum weather
in September.
A very hot, very dry month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Khartoum: daytime highs average 38.6°C and nights cool to about 26.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 9.4 mm of rain on roughly 3 days, which makes September a very dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average September day.
The nearest other city in this atlas is Al Manāqil (153 km away). In September its highs average 36.7°C, 1.9°C cooler than Khartoum, with 30 mm of rain.
Among the 22 cities listed in Sudan, Khartoum ranks 3rd of 22 for the warmest September highs and 4th of 22 for the driest September (rainfall, lowest first). The mean September high of those 22 cities is 34.7°C; Khartoum is 4.0°C warmer than that mean.
From September to October, average highs fall by 0.3°C to 38.3°C, and monthly rainfall falls from 9.4 mm to 3.7 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Khartoum climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C15.1°C | 15.1°C | 0 | 0.0 | 11.311 h |
| February | 32.3°C16.9°C | 16.9°C | 0 | 0.0 | 11.612 h |
| March | 35.7°C19.7°C | 19.7°C | 0 | 0.0 | 12.012 h |
| April | 39.3°C23.4°C | 23.4°C | 0.2 | 0.1 | 12.512 h |
| May | 40.7°C26.5°C | 26.5°C | 3.2 | 1.2 | 12.813 h |
| June | 40.4°C27.0°C | 27.0°C | 3.1 | 1.1 | 13.013 h |
| July | 37.7°C26.6°C | 26.6°C | 20 | 4.7 | 13.013 h |
| August | 37.0°C26.0°C | 26.0°C | 24 | 6.1 | 12.613 h |
| September, selected | 38.6°C26.5°C | 26.5°C | 9.4 | 2.6 | 12.212 h |
| October | 38.3°C25.5°C | 25.5°C | 3.7 | 1.0 | 11.812 h |
| November | 34.4°C20.5°C | 20.5°C | 0.1 | 0.0 | 11.411 h |
| December | 30.8°C16.6°C | 16.6°C | 0 | 0.0 | 11.211 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Al Manāqil in SeptemberSudan · 153 kmHigh 36.7°C · Low 25.4°C · 30 mm rain
- Wad Medani in SeptemberSudan · 166 kmHigh 36.6°C · Low 25.4°C · 28 mm rain
- Ad Douiem in SeptemberSudan · 174 kmHigh 35.9°C · Low 25.4°C · 32 mm rain
- Sennar in SeptemberSudan · 247 kmHigh 35.2°C · Low 24.6°C · 50 mm rain
- Kosti in SeptemberSudan · 266 kmHigh 34.9°C · Low 24.6°C · 39 mm rain
- Ad-Damir in SeptemberSudan · 275 kmHigh 40.5°C · Low 26.8°C · 2.1 mm rain
- Atbara in SeptemberSudan · 285 kmHigh 40.5°C · Low 27.0°C · 1.7 mm rain
- Singa in SeptemberSudan · 307 kmHigh 34.0°C · Low 24.0°C · 57 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Khartoum) is explained once on the Khartoum year overview and on the Sources, method and limits page.