Climate averages 1991–2020
Owerri weather
in May.
A hot, very wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Owerri: daytime highs average 30.4°C and nights cool to about 23.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 264 mm of rain on roughly 28 days, which makes May a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average May day.
The nearest other city in this atlas is Ihiala (46 km away). In May its highs average 29.9°C, 0.5°C cooler than Owerri, with 239 mm of rain.
Among the 143 cities listed in Nigeria, Owerri ranks 69th of 143 for the warmest May highs and 130th of 143 for the driest May (rainfall, lowest first). The mean May high of those 143 cities is 31.7°C; Owerri is 1.3°C cooler than that mean.
From May to June, average highs fall by 1.6°C to 28.8°C, and monthly rainfall rises from 264 mm to 296 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Ihiala in MayNigeria · 46 kmHigh 29.9°C · Low 23.2°C · 239 mm rain
- Umuahia in MayNigeria · 51 kmHigh 29.7°C · Low 23.0°C · 233 mm rain
- Okigwe in MayNigeria · 52 kmHigh 30.3°C · Low 23.3°C · 228 mm rain
- Aba in MayNigeria · 56 kmHigh 29.6°C · Low 23.4°C · 291 mm rain
- Igbo-Ukwu in MayNigeria · 59 kmHigh 28.9°C · Low 22.3°C · 241 mm rain
- Nnewi in MayNigeria · 61 kmHigh 30.0°C · Low 23.4°C · 241 mm rain
- Atani in MayNigeria · 67 kmHigh 30.6°C · Low 24.0°C · 174 mm rain
- Bende in MayNigeria · 67 kmHigh 30.0°C · Low 23.3°C · 231 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.