Average annual temperature is 26.6 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: 21.5 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of Siwamoja
* Weather data for Siwamoja Tanzania is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 32.2 | 32.7 | 32.5 | 30.6 | 29.0 | 28.2 | 28.5 | 29.2 | 30.5 | 32.2 | 30.7 | 32.1 |
| Average daytime temperature (°C) | 31.0 | 31.4 | 30.7 | 28.3 | 27.9 | 27.5 | 27.4 | 28.1 | 29.5 | 30.2 | 28.3 | 30.4 |
| Average temperature (°C) | 27.9 | 28.2 | 27.9 | 26.4 | 26.3 | 25.8 | 25.1 | 25.3 | 26.3 | 26.9 | 25.8 | 27.7 |
| Average night temperature (°C) | 25.8 | 26.0 | 25.8 | 24.7 | 24.9 | 24.4 | 23.3 | 23.2 | 23.7 | 24.3 | 23.8 | 25.3 |
| Absolute minimum temperature (°C) | 23.0 | 24.6 | 23.5 | 23.5 | 23.2 | 23.0 | 21.5 | 21.8 | 22.2 | 22.5 | 22.5 | 24.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.4 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 11.0 | 10.9 | 10.2 | 8.6 | 10.5 | 10.6 | 10.5 | 10.9 | 11.2 | 11.0 | 9.0 | 11.1 |
| Precipitation (mm) | 32 | 12 | 106 | 353 | 107 | 63 | 60 | 54 | 30 | 138 | 418 | 108 |
| Sunny days | 8 | 12 | 4 | 0 | 1 | 3 | 3 | 2 | 4 | 1 | 0 | 1 |
| Rainy days | 23 | 16 | 27 | 30 | 30 | 27 | 28 | 29 | 26 | 30 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siwamoja is at