Climate averages 1991–2020
Kosti weather
in September.
A very hot, fairly dry month: the 8th 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 Kosti: daytime highs average 34.9°C and nights cool to about 24.6°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 39 mm of rain on roughly 9 days, which makes September a fairly dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.
The nearest other city in this atlas is Ad Douiem (101 km away). In September its highs average 35.9°C, 1.0°C warmer than Kosti, with 32 mm of rain.
Among the 22 cities listed in Sudan, Kosti ranks joint 10th of 22 for the warmest September highs and 10th of 22 for the driest September (rainfall, lowest first). The mean September high of those 22 cities is 34.7°C; Kosti is 0.3°C warmer than that mean.
From September to October, average highs rise by 1.9°C to 36.8°C, and monthly rainfall falls from 39 mm to 17 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
Kosti climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.0°C18.8°C | 18.8°C | 0.1 | 0.0 | 11.411 h |
| February | 35.6°C20.5°C | 20.5°C | 0 | 0.0 | 11.712 h |
| March | 38.5°C23.0°C | 23.0°C | 0.2 | 0.0 | 12.112 h |
| April | 40.6°C25.4°C | 25.4°C | 1.6 | 0.5 | 12.412 h |
| May | 39.7°C26.9°C | 26.9°C | 15 | 4.1 | 12.713 h |
| June | 37.8°C26.6°C | 26.6°C | 23 | 6.2 | 12.913 h |
| July | 34.3°C24.8°C | 24.8°C | 68 | 12.3 | 12.813 h |
| August | 32.7°C24.0°C | 24.0°C | 73 | 13.4 | 12.613 h |
| September, selected | 34.9°C24.6°C | 24.6°C | 39 | 9.4 | 12.212 h |
| October | 36.8°C25.1°C | 25.1°C | 17 | 5.3 | 11.812 h |
| November | 36.5°C23.2°C | 23.2°C | 0.3 | 0.1 | 11.512 h |
| December | 33.9°C20.0°C | 20.0°C | 0 | 0.0 | 11.411 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
- Ad Douiem in SeptemberSudan · 101 kmHigh 35.9°C · Low 25.4°C · 32 mm rain
- Sennar in SeptemberSudan · 108 kmHigh 35.2°C · Low 24.6°C · 50 mm rain
- Al Manāqil in SeptemberSudan · 125 kmHigh 36.7°C · Low 25.4°C · 30 mm rain
- Singa in SeptemberSudan · 137 kmHigh 34.0°C · Low 24.0°C · 57 mm rain
- Wad Medani in SeptemberSudan · 166 kmHigh 36.6°C · Low 25.4°C · 28 mm rain
- Ad-Damazin in SeptemberSudan · 239 kmHigh 31.3°C · Low 23.5°C · 104 mm rain
- El Obeid in SeptemberSudan · 265 kmHigh 34.3°C · Low 23.5°C · 41 mm rain
- Khartoum in SeptemberSudan · 266 kmHigh 38.6°C · Low 26.5°C · 9.4 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 Kosti) is explained once on the Kosti year overview and on the Sources, method and limits page.