Climate averages 1991–2020
N'Djamena weather
in September.
A hot, moderately wet month: the 9th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in N'Djamena: daytime highs average 32.6°C and nights cool to about 23.9°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 79 mm of rain on roughly 12 days, which makes September a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average September day.
The nearest other city in this atlas is Gamboru (96 km away). In September its highs average 33.7°C, 1.1°C warmer than N'Djamena, with 66 mm of rain.
Among the 8 cities listed in Chad, N'Djamena ranks 2nd of 8 for the warmest September highs and 2nd of 8 for the driest September (rainfall, lowest first). The mean September high of those 8 cities is 30.3°C; N'Djamena is 2.3°C warmer than that mean.
From September to October, average highs rise by 3.4°C to 36.0°C, and monthly rainfall falls from 79 mm to 14 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
N'Djamena climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.0°C16.6°C | 16.6°C | 0 | 0.0 | 11.511 h |
| February | 35.2°C19.3°C | 19.3°C | 0 | 0.0 | 11.712 h |
| March | 39.3°C23.4°C | 23.4°C | 0.1 | 0.0 | 12.112 h |
| April | 41.5°C26.6°C | 26.6°C | 3.7 | 1.2 | 12.412 h |
| May | 40.2°C27.5°C | 27.5°C | 18 | 4.9 | 12.713 h |
| June | 37.9°C26.9°C | 26.9°C | 32 | 8.1 | 12.813 h |
| July | 33.6°C24.9°C | 24.9°C | 106 | 16.2 | 12.813 h |
| August | 30.5°C23.4°C | 23.4°C | 185 | 21.4 | 12.513 h |
| September, selected | 32.6°C23.9°C | 23.9°C | 79 | 11.9 | 12.212 h |
| October | 36.0°C23.8°C | 23.8°C | 14 | 3.1 | 11.912 h |
| November | 35.5°C21.1°C | 21.1°C | 0.1 | 0.1 | 11.612 h |
| December | 32.5°C17.6°C | 17.6°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
- Gamboru in SeptemberNigeria · 96 kmHigh 33.7°C · Low 24.1°C · 66 mm rain
- Bama in SeptemberNigeria · 161 kmHigh 31.8°C · Low 23.3°C · 87 mm rain
- Maroua in SeptemberCameroon · 186 kmHigh 30.6°C · Low 22.3°C · 109 mm rain
- Maiduguri in SeptemberNigeria · 207 kmHigh 32.0°C · Low 23.6°C · 82 mm rain
- Guider in SeptemberCameroon · 270 kmHigh 30.2°C · Low 22.4°C · 114 mm rain
- Mubi in SeptemberNigeria · 282 kmHigh 28.3°C · Low 20.6°C · 188 mm rain
- Pala in SeptemberChad · 305 kmHigh 29.1°C · Low 21.9°C · 167 mm rain
- Kelo in SeptemberChad · 322 kmHigh 29.7°C · Low 22.3°C · 154 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 N'Djamena) is explained once on the N'Djamena year overview and on the Sources, method and limits page.