Average annual temperature is 25.5 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 46 days
Number of rainy days: 319 days
Look at detailed online map of Siaka
* Weather data for Siaka 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) | 34.1 | 36.4 | 35.0 | 34.5 | 33.9 | 31.6 | 30.0 | 30.9 | 31.9 | 31.7 | 32.5 | 34.7 |
| Average daytime temperature (°C) | 32.9 | 33.7 | 32.7 | 32.5 | 31.1 | 28.6 | 28.2 | 28.5 | 29.4 | 29.9 | 30.9 | 33.0 |
| Average temperature (°C) | 26.2 | 26.9 | 26.5 | 26.3 | 26.0 | 24.2 | 24.0 | 24.3 | 24.4 | 24.8 | 25.6 | 26.7 |
| Average night temperature (°C) | 22.1 | 23.1 | 23.0 | 23.0 | 23.0 | 21.9 | 21.8 | 22.0 | 22.0 | 22.2 | 22.7 | 22.4 |
| Absolute minimum temperature (°C) | 18.0 | 20.4 | 21.9 | 22.2 | 22.3 | 20.4 | 20.6 | 20.9 | 21.2 | 21.2 | 21.7 | 20.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 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 | 12.2 | 12.4 | 12.4 | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 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) | 9.3 | 9.3 | 7.7 | 8.1 | 8.4 | 6.8 | 7.4 | 7.1 | 7.0 | 8.0 | 9.3 | 10.1 |
| Precipitation (mm) | 39 | 48 | 102 | 162 | 124 | 281 | 249 | 204 | 200 | 177 | 94 | 19 |
| Sunny days | 15 | 8 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 19 |
| Rainy days | 16 | 20 | 29 | 30 | 30 | 29 | 31 | 31 | 30 | 31 | 30 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siaka is at