Onitsha weather in 2025
Onitsha weather in 2025, with 365 daily observations from Open-Meteo archive data.
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Use the graph view to inspect 2025 alongside other available years for Onitsha.
Year summary
In 2025, Onitsha averaged 32.2 C for daily highs and 24.1 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was -0.2 C from that baseline, and total precipitation was +175.4 mm from the baseline total.
The warmest month was February, with an average high of 36.6 C, while August had the lowest average low at 22.7 C.
The wettest month was July, totaling 334.4 mm. The hottest day reached 38.8 C on February 12, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 24.0 | 36.0 | 9.7 | 31 |
| February | 25.7 | 36.6 | 12.0 | 28 |
| March | 25.6 | 35.4 | 61.1 | 31 |
| April | 24.7 | 32.8 | 117.5 | 30 |
| May | 24.3 | 32.1 | 103.5 | 31 |
| June | 23.6 | 30.0 | 169.3 | 30 |
| July | 22.8 | 28.4 | 334.4 | 31 |
| August | 22.7 | 28.5 | 189.8 | 31 |
| September | 23.0 | 29.2 | 274.5 | 30 |
| October | 23.3 | 29.7 | 218.8 | 31 |
| November | 24.3 | 33.2 | 28.1 | 30 |
| December | 24.7 | 34.7 | 16.8 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | February 12, 2025 | 38.8 C |
| Coldest night | January 11, 2025 | 19.4 C |
| Wettest day | September 28, 2025 | 48.9 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.