Onitsha weather in August
August is one of the least pleasant months in Onitsha: highs of 28°C (82°F) and about 242 mm (9.5 in) of rain on average. Nights average 22°C (71°F) and cloud cover 87% (NASA POWER, 2001–2025 averages). It is the 2nd wettest month of the year and the 2nd coolest. Compared with July, it is about as warm and about as wet; September brings highs of 28°C (82°F) and 315 mm (12.4 in) of rain.
Is August a good time to visit Onitsha?
least pleasant month Weather score 42/100.
August is one of the least pleasant months for weather in Onitsha. For better conditions, consider Nov–Mar.
Does it rain a lot in Onitsha in August?
Yes, it is one of the rainy months: about 242 mm (9.5 in) falls in an average August. It is the 2nd wettest month of the year.
How warm is Onitsha in August?
Days average 28°C (82°F) and nights 22°C (71°F).
Onitsha weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (85°F) | 20°C (67°F) | 12 mm | 42% | best |
| February | 30°C (87°F) | 22°C (72°F) | 29 mm | 60% | best |
| March | 30°C (86°F) | 23°C (74°F) | 60 mm | 75% | best |
| April | 30°C (86°F) | 24°C (75°F) | 123 mm | 79% | fair |
| May | 29°C (85°F) | 24°C (74°F) | 167 mm | 77% | fair |
| June | 28°C (83°F) | 23°C (73°F) | 227 mm | 79% | least pleasant |
| July | 28°C (82°F) | 22°C (72°F) | 231 mm | 86% | least pleasant |
| August | 28°C (82°F) | 22°C (71°F) | 242 mm | 87% | least pleasant |
| September | 28°C (82°F) | 22°C (72°F) | 315 mm | 85% | least pleasant |
| October | 28°C (83°F) | 23°C (73°F) | 210 mm | 77% | least pleasant |
| November | 29°C (85°F) | 23°C (73°F) | 73 mm | 56% | best |
| December | 30°C (85°F) | 20°C (69°F) | 15 mm | 41% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months