Climate averages 1991–2020
Onitsha weather
in July.
A hot, wet month: the coolest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Onitsha: daytime highs average 28.2°C and nights cool to about 22.8°C. By daytime temperature it is the coolest month of the year.
Expect about 178 mm of rain on roughly 26 days, which makes July a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average July day.
The nearest other city in this atlas is Nkpor (5 km away). In July its highs average 27.9°C, about as warm as Onitsha, with 178 mm of rain.
Among the 143 cities listed in Nigeria, Onitsha ranks joint 49th of 143 for the warmest July highs and joint 44th of 143 for the driest July (rainfall, lowest first). The mean July high of those 143 cities is 28.2°C; Onitsha is level with that mean.
From July to August, average highs rise by 0.1°C to 28.3°C, and monthly rainfall falls from 178 mm to 177 mm.
The annual picture
July 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
Onitsha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 34.4°C23.2°C | 23.2°C | 5.1 | 1.1 | 11.812 h |
| February | 34.9°C24.3°C | 24.3°C | 14 | 2.9 | 11.912 h |
| March | 33.8°C24.7°C | 24.7°C | 47 | 9.5 | 12.112 h |
| April | 32.1°C24.5°C | 24.5°C | 95 | 16.0 | 12.312 h |
| May | 30.6°C24.0°C | 24.0°C | 142 | 23.0 | 12.412 h |
| June | 29.0°C23.3°C | 23.3°C | 184 | 25.5 | 12.512 h |
| July, selected | 28.2°C22.8°C | 22.8°C | 178 | 25.9 | 12.412 h |
| August | 28.3°C22.7°C | 22.7°C | 177 | 23.2 | 12.312 h |
| September | 28.7°C23.0°C | 23.0°C | 200 | 26.8 | 12.212 h |
| October | 29.3°C23.2°C | 23.2°C | 155 | 23.1 | 12.012 h |
| November | 30.8°C23.4°C | 23.4°C | 29 | 5.6 | 11.812 h |
| December | 33.1°C23.3°C | 23.3°C | 4.3 | 0.9 | 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
July in nearby cities
- Nkpor in JulyNigeria · 5 kmHigh 27.9°C · Low 22.5°C · 178 mm rain
- Asaba in JulyNigeria · 8 kmHigh 28.4°C · Low 23.0°C · 178 mm rain
- Atani in JulyNigeria · 16 kmHigh 28.3°C · Low 22.7°C · 197 mm rain
- Nnewi in JulyNigeria · 21 kmHigh 27.7°C · Low 22.1°C · 243 mm rain
- Igbo-Ukwu in JulyNigeria · 30 kmHigh 26.6°C · Low 21.0°C · 243 mm rain
- Agulu in JulyNigeria · 31 kmHigh 27.7°C · Low 22.1°C · 243 mm rain
- Awka in JulyNigeria · 32 kmHigh 28.3°C · Low 22.7°C · 188 mm rain
- Ihiala in JulyNigeria · 34 kmHigh 27.6°C · Low 22.0°C · 259 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 Onitsha) is explained once on the Onitsha year overview and on the Sources, method and limits page.
Nkpor and Asaba lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.