Average annual temperature is 25.7 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: 17.1 °C
Number of sunny days: 73 days
Number of rainy days: 292 days
Look at detailed online map of Heman
* Weather data for Heman 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) | 36.7 | 36.9 | 34.1 | 33.4 | 33.7 | 31.2 | 30.7 | 30.5 | 31.4 | 32.3 | 32.9 | 35.7 |
| Average daytime temperature (°C) | 34.0 | 34.6 | 31.8 | 31.5 | 31.1 | 28.9 | 28.7 | 28.9 | 29.6 | 30.2 | 31.2 | 33.2 |
| Average temperature (°C) | 26.7 | 27.7 | 26.4 | 26.0 | 25.9 | 24.5 | 24.4 | 24.5 | 24.8 | 25.1 | 25.8 | 26.4 |
| Average night temperature (°C) | 21.5 | 23.1 | 23.1 | 22.9 | 23.1 | 21.9 | 22.1 | 22.1 | 22.2 | 22.4 | 22.6 | 21.2 |
| Absolute minimum temperature (°C) | 17.1 | 20.4 | 21.8 | 22.2 | 22.1 | 20.1 | 21.0 | 21.2 | 21.4 | 21.3 | 21.4 | 18.2 |
| 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 | 12.5 | 12.3 | 12.2 | 12.0 | 11.8 | 11.7 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 9.6 | 7.6 | 7.9 | 8.8 | 7.7 | 7.1 | 6.9 | 7.0 | 8.1 | 9.4 | 9.7 |
| Precipitation (mm) | 73 | 40 | 173 | 207 | 151 | 343 | 192 | 203 | 228 | 230 | 146 | 15 |
| Sunny days | 23 | 15 | 5 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 25 |
| Rainy days | 8 | 13 | 26 | 30 | 31 | 28 | 31 | 31 | 30 | 30 | 28 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Heman is at