Average annual temperature is 24.7 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: 4.4 °C
Number of sunny days: 281 days
Number of rainy days: 84 days
Look at detailed online map of Siwi
* Weather data for Siwi Namibia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.0 | 34.8 | 37.0 | 35.2 | 33.6 | 32.2 | 31.0 | 35.4 | 37.6 | 39.9 | 39.6 | 38.0 |
| Average daytime temperature (°C) | 28.9 | 30.6 | 31.8 | 32.3 | 31.8 | 28.8 | 26.5 | 31.0 | 35.1 | 37.4 | 36.0 | 33.2 |
| Average temperature (°C) | 23.4 | 24.2 | 25.5 | 25.6 | 24.1 | 20.2 | 18.5 | 22.7 | 26.5 | 29.6 | 28.9 | 26.9 |
| Average night temperature (°C) | 18.8 | 17.9 | 19.1 | 17.7 | 15.0 | 10.7 | 10.5 | 13.7 | 16.9 | 21.3 | 21.9 | 20.9 |
| Absolute minimum temperature (°C) | 16.2 | 14.3 | 16.8 | 15.3 | 12.6 | 5.1 | 4.4 | 5.6 | 12.8 | 16.2 | 18.5 | 17.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.0 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 | 11.2 | 11.5 | 12.0 | 12.5 | 12.9 | 13.2 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 9.4 | 10.6 | 10.5 | 10.5 | 10.5 | 10.3 | 10.3 | 10.6 | 11.0 | 10.9 | 11.4 | 10.8 |
| Precipitation (mm) | 206 | 41 | 35 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 24 | 59 |
| Sunny days | 5 | 16 | 17 | 28 | 31 | 30 | 30 | 31 | 30 | 28 | 16 | 19 |
| Rainy days | 26 | 12 | 14 | 2 | 0 | 0 | 1 | 0 | 0 | 3 | 14 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siwi is at