Climate averages 1991–2020
Benin City weather
in September.
A warm, very wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Benin City: daytime highs average 27.8°C and nights cool to about 22.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 309 mm of rain on roughly 29 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.
The nearest other city in this atlas is Sapele (50 km away). In September its highs average 28.1°C, about as warm as Benin City, with 310 mm of rain.
Among the 143 cities listed in Nigeria, Benin City ranks joint 108th of 143 for the warmest September highs and 125th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 28.6°C; Benin City is 0.8°C cooler than that mean.
From September to October, average highs rise by 0.9°C to 28.7°C, and monthly rainfall falls from 309 mm to 263 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
Benin City climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.3°C23.0°C | 23.0°C | 33 | 8.9 | 11.812 h |
| February | 33.0°C24.1°C | 24.1°C | 59 | 14.9 | 11.912 h |
| March | 31.5°C24.3°C | 24.3°C | 146 | 23.8 | 12.112 h |
| April | 30.4°C24.0°C | 24.0°C | 205 | 25.6 | 12.312 h |
| May | 29.6°C23.5°C | 23.5°C | 256 | 28.7 | 12.412 h |
| June | 28.2°C22.8°C | 22.8°C | 295 | 29.3 | 12.512 h |
| July | 27.2°C22.1°C | 22.1°C | 293 | 29.9 | 12.512 h |
| August | 27.3°C22.1°C | 22.1°C | 266 | 28.3 | 12.312 h |
| September, selected | 27.8°C22.3°C | 22.3°C | 309 | 29.2 | 12.212 h |
| October | 28.7°C22.6°C | 22.6°C | 263 | 29.5 | 12.012 h |
| November | 30.1°C23.1°C | 23.1°C | 93 | 18.6 | 11.812 h |
| December | 31.9°C23.0°C | 23.0°C | 28 | 8.5 | 11.812 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
- Sapele in SeptemberNigeria · 50 kmHigh 28.1°C · Low 22.6°C · 310 mm rain
- Uromi in SeptemberNigeria · 88 kmHigh 27.8°C · Low 21.5°C · 239 mm rain
- Warri in SeptemberNigeria · 92 kmHigh 27.9°C · Low 22.7°C · 331 mm rain
- Owo in SeptemberNigeria · 96 kmHigh 28.1°C · Low 21.6°C · 228 mm rain
- Idanre in SeptemberNigeria · 103 kmHigh 27.4°C · Low 21.6°C · 271 mm rain
- Ughelli in SeptemberNigeria · 103 kmHigh 28.1°C · Low 22.5°C · 331 mm rain
- Akure in SeptemberNigeria · 112 kmHigh 27.7°C · Low 21.6°C · 237 mm rain
- Ondo in SeptemberNigeria · 121 kmHigh 27.4°C · Low 21.8°C · 276 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 Benin City) is explained once on the Benin City year overview and on the Sources, method and limits page.