Climate averages 1991–2020
Owerri weather
in August.
A hot, very wet month: the 11th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Owerri: daytime highs average 28.3°C and nights cool to about 22.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 272 mm of rain on roughly 27 days, which makes August a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average August day.
The nearest other city in this atlas is Ihiala (46 km away). In August its highs average 27.7°C, 0.6°C cooler than Owerri, with 246 mm of rain.
Among the 143 cities listed in Nigeria, Owerri ranks joint 37th of 143 for the warmest August highs and joint 125th of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 27.8°C; Owerri is 0.5°C warmer than that mean.
From August to September, average highs rise by 0.4°C to 28.7°C, and monthly rainfall rises from 272 mm to 315 mm.
The annual picture
August 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
Owerri climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 34.4°C22.9°C | 22.9°C | 25 | 5.6 | 11.812 h |
| February | 34.4°C23.7°C | 23.7°C | 53 | 10.0 | 11.912 h |
| March | 32.9°C23.9°C | 23.9°C | 134 | 20.5 | 12.112 h |
| April | 31.5°C23.6°C | 23.6°C | 213 | 24.8 | 12.212 h |
| May | 30.4°C23.3°C | 23.3°C | 264 | 28.3 | 12.412 h |
| June | 28.8°C22.5°C | 22.5°C | 296 | 28.4 | 12.412 h |
| July | 28.1°C22.0°C | 22.0°C | 301 | 28.9 | 12.412 h |
| August, selected | 28.3°C22.1°C | 22.1°C | 272 | 27.0 | 12.312 h |
| September | 28.7°C22.2°C | 22.2°C | 315 | 29.2 | 12.212 h |
| October | 29.3°C22.4°C | 22.4°C | 302 | 29.7 | 12.012 h |
| November | 30.8°C22.7°C | 22.7°C | 115 | 18.1 | 11.912 h |
| December | 33.0°C22.9°C | 22.9°C | 23 | 5.7 | 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
August in nearby cities
- Ihiala in AugustNigeria · 46 kmHigh 27.7°C · Low 22.0°C · 246 mm rain
- Umuahia in AugustNigeria · 51 kmHigh 27.7°C · Low 21.8°C · 249 mm rain
- Okigwe in AugustNigeria · 52 kmHigh 28.1°C · Low 22.0°C · 256 mm rain
- Aba in AugustNigeria · 56 kmHigh 27.6°C · Low 22.1°C · 288 mm rain
- Igbo-Ukwu in AugustNigeria · 59 kmHigh 26.7°C · Low 20.9°C · 232 mm rain
- Nnewi in AugustNigeria · 61 kmHigh 27.8°C · Low 22.1°C · 232 mm rain
- Atani in AugustNigeria · 67 kmHigh 28.4°C · Low 22.7°C · 188 mm rain
- Bende in AugustNigeria · 67 kmHigh 28.0°C · Low 22.0°C · 258 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 Owerri) is explained once on the Owerri year overview and on the Sources, method and limits page.