Onitsha weather in August
In August, Onitsha has an average high of 28 °C83 °F and an average low of 22 °C72 °F, with about 242 mm9.5 in of precipitation. It is the 11th warmest month of the year and ranks 2nd for precipitation.
How August compares with other months
Compared with July, August is about the same temperature and wetter by 11 mm0.4 in. Compared with September, August is about the same temperature and drier by 73 mm2.9 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 89% and the average cloud amount 87%.
Is August a good time to visit Onitsha?
August is not among the most comfortable months by our comfort score: it is hot (average high 28 °C83 °F), it is fairly wet (242 mm9.5 in) and it is humid (89%). The most comfortable months in Onitsha are December and January.
What to wear in August
For Onitsha in August, pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
August in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Onitsha | 2883 | 2272 | 2429.5 |
| Awka | 2882 | 2271 | 2429.5 |
| Okigwe | 2882 | 2171 | 2399.4 |
| Owerri | 2882 | 2271 | 2529.9 |
| Uromi | 2679 | 2068 | 2319.1 |
| Enugu | 2882 | 2171 | 2359.3 |
| Nsukka | 2679 | 2068 | 2238.8 |
| Umuahia | 2781 | 2170 | 2499.8 |
| Amaigbo | 2882 | 2272 | 2399.4 |
Nearby places that are more than 1 °C1.8 °F cooler: Uromi and Nsukka.
Other months in Onitsha
- January30 °C86 °F / 20 °C68 °F
- February31 °C87 °F / 22 °C72 °F
- March31 °C87 °F / 24 °C75 °F
- April30 °C86 °F / 24 °C75 °F
- May30 °C85 °F / 24 °C75 °F
- June29 °C83 °F / 23 °C74 °F
- July28 °C83 °F / 22 °C72 °F
- August28 °C83 °F / 22 °C72 °F
- September28 °C83 °F / 23 °C73 °F
- October29 °C83 °F / 23 °C73 °F
- November30 °C85 °F / 23 °C73 °F
- December30 °C86 °F / 21 °C69 °F
Frequently asked questions
How warm is Onitsha in August?
In August the average high in Onitsha is 28 °C (83 °F) and the average low is 22 °C (72 °F).
Does it rain a lot in Onitsha in August?
On average about 242 mm (9.5 in) of precipitation falls in August; it ranks 2nd of the 12 months.
Is August the warmest month in Onitsha?
No. The warmest month in Onitsha is February, with an average high of 31 °C (87 °F). The coldest month is January, with an average low of 20 °C (68 °F).
How long is the day in Onitsha in August?
In the middle of August the day in Onitsha lasts about 12.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Onitsha in August?
The average relative humidity in August is about 89%. Combined with warm days, it can feel muggy.
How cloudy is Onitsha in August?
On average about 87% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.