Climate averages 1991–2020
Iseyin weather
in September.
A hot, wet month: the 10th 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 Iseyin: daytime highs average 28.8°C and nights cool to about 21.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 167 mm of rain on roughly 24 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.
The nearest other city in this atlas is Oyo (39 km away). In September its highs average 28.5°C, about as warm as Iseyin, with 164 mm of rain.
Among the 143 cities listed in Nigeria, Iseyin ranks joint 40th of 143 for the warmest September highs and 30th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 28.6°C; Iseyin is 0.1°C warmer than that mean.
From September to October, average highs rise by 1.3°C to 30.1°C, and monthly rainfall falls from 167 mm to 102 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
Iseyin climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 34.2°C21.4°C | 21.4°C | 6.9 | 1.7 | 11.712 h |
| February | 35.2°C22.7°C | 22.7°C | 16 | 3.6 | 11.912 h |
| March | 34.9°C23.9°C | 23.9°C | 47 | 9.9 | 12.112 h |
| April | 33.3°C24.0°C | 24.0°C | 79 | 13.7 | 12.312 h |
| May | 31.5°C23.5°C | 23.5°C | 123 | 19.2 | 12.512 h |
| June | 29.4°C22.5°C | 22.5°C | 155 | 23.0 | 12.613 h |
| July | 28.1°C21.7°C | 21.7°C | 170 | 24.6 | 12.513 h |
| August | 27.8°C21.4°C | 21.4°C | 174 | 23.7 | 12.412 h |
| September, selected | 28.8°C21.8°C | 21.8°C | 167 | 23.6 | 12.212 h |
| October | 30.1°C22.3°C | 22.3°C | 102 | 17.9 | 12.012 h |
| November | 32.4°C22.8°C | 22.8°C | 15 | 3.6 | 11.812 h |
| December | 33.5°C21.5°C | 21.5°C | 4.4 | 1.0 | 11.712 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
- Oyo in SeptemberNigeria · 39 kmHigh 28.5°C · Low 22.0°C · 164 mm rain
- Fiditi in SeptemberNigeria · 45 kmHigh 28.2°C · Low 22.0°C · 164 mm rain
- Orita-Eruwa in SeptemberNigeria · 49 kmHigh 28.7°C · Low 22.1°C · 168 mm rain
- Igbo-Ora in SeptemberNigeria · 69 kmHigh 28.6°C · Low 22.3°C · 161 mm rain
- Ogbomoso in SeptemberNigeria · 73 kmHigh 28.2°C · Low 21.6°C · 175 mm rain
- Ibadan in SeptemberNigeria · 74 kmHigh 28.3°C · Low 22.2°C · 206 mm rain
- Iwo in SeptemberNigeria · 74 kmHigh 28.1°C · Low 22.1°C · 174 mm rain
- Lalupon in SeptemberNigeria · 76 kmHigh 28.1°C · Low 22.1°C · 206 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 Iseyin) is explained once on the Iseyin year overview and on the Sources, method and limits page.