Average annual temperature is 26.0 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: 17.1 °C
Number of sunny days: 53 days
Number of rainy days: 312 days
Look at detailed online map of Sefwi Wiawso
* Weather data for Sefwi Wiawso Ghana is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.9 | 36.7 | 34.6 | 34.1 | 33.8 | 31.8 | 30.8 | 31.2 | 31.7 | 32.1 | 32.0 | 35.0 |
| Average daytime temperature (°C) | 33.5 | 34.3 | 32.9 | 32.1 | 31.6 | 29.1 | 28.9 | 29.1 | 30.0 | 30.2 | 31.1 | 32.7 |
| Average temperature (°C) | 26.9 | 27.8 | 26.9 | 26.4 | 26.2 | 24.8 | 24.6 | 24.8 | 25.2 | 25.3 | 26.1 | 26.7 |
| Average night temperature (°C) | 22.5 | 23.7 | 23.6 | 23.4 | 23.4 | 22.4 | 22.5 | 22.5 | 22.8 | 22.7 | 23.0 | 22.2 |
| Absolute minimum temperature (°C) | 17.1 | 21.6 | 22.5 | 22.5 | 22.1 | 20.4 | 21.7 | 20.6 | 21.8 | 22.0 | 21.5 | 18.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 9.9 | 8.1 | 8.0 | 7.9 | 6.9 | 6.9 | 6.4 | 7.2 | 8.2 | 9.2 | 9.8 |
| Precipitation (mm) | 18 | 73 | 181 | 219 | 213 | 315 | 253 | 139 | 159 | 247 | 156 | 28 |
| Sunny days | 19 | 8 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 20 |
| Rainy days | 12 | 20 | 27 | 30 | 31 | 29 | 31 | 31 | 30 | 31 | 29 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sefwi Wiawso is at