Onitsha weather in May
In May, Onitsha has an average high of 30 °C85 °F and an average low of 24 °C75 °F, with about 167 mm6.6 in of precipitation. It is the 3rd warmest month of the year and ranks 6th for precipitation.
How May compares with other months
Compared with April, May is about the same temperature and wetter by 44 mm1.7 in. Compared with June, May is 0.9 °C1.6 °F warmer on average and drier by 60 mm2.3 in. Daylight lasts about 12.4 hours around the middle of the month. Average relative humidity is 89% and the average cloud amount 77%.
Is May a good time to visit Onitsha?
May is not among the most comfortable months by our comfort score: it is hot (average high 30 °C85 °F), it is fairly wet (167 mm6.6 in) and it is humid (89%). The most comfortable months in Onitsha are December and January.
What to wear in May
For Onitsha in May, pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Onitsha | 3085 | 2475 | 1676.6 |
| Awka | 2985 | 2474 | 1676.6 |
| Okigwe | 2984 | 2373 | 1686.6 |
| Owerri | 2985 | 2374 | 1787.0 |
| Uromi | 2882 | 2271 | 1505.9 |
| Enugu | 2984 | 2373 | 1505.9 |
| Nsukka | 2882 | 2271 | 1345.3 |
| Umuahia | 2984 | 2373 | 1756.9 |
| Amaigbo | 2985 | 2474 | 1847.2 |
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 May?
In May the average high in Onitsha is 30 °C (85 °F) and the average low is 24 °C (75 °F).
Does it rain a lot in Onitsha in May?
On average about 167 mm (6.6 in) of precipitation falls in May; it ranks 6th of the 12 months.
Is May 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 May?
In the middle of May the day in Onitsha lasts about 12.4 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Onitsha in May?
The average relative humidity in May is about 89%. Combined with warm days, it can feel muggy.
How cloudy is Onitsha in May?
On average about 77% of the sky is covered by cloud in May. 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.