Average annual temperature is 21.2 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -2.2 °C
Number of sunny days: 296 days
Number of rainy days: 69 days
Look at detailed online map of Alt-Seeis
* Weather data for Alt-Seeis 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) | 33.4 | 33.9 | 34.1 | 31.6 | 27.9 | 26.4 | 26.2 | 30.0 | 33.2 | 36.3 | 35.5 | 35.4 |
| Average daytime temperature (°C) | 29.8 | 30.1 | 30.7 | 27.9 | 25.2 | 22.9 | 20.6 | 25.6 | 28.8 | 32.5 | 32.3 | 32.8 |
| Average temperature (°C) | 23.9 | 23.9 | 24.2 | 21.7 | 18.3 | 14.9 | 13.1 | 17.5 | 20.4 | 25.2 | 25.5 | 26.0 |
| Average night temperature (°C) | 18.1 | 17.5 | 16.8 | 15.1 | 11.4 | 7.6 | 5.7 | 9.6 | 11.3 | 16.9 | 18.4 | 18.7 |
| Absolute minimum temperature (°C) | 14.9 | 12.9 | 13.1 | 11.4 | 3.0 | -1.8 | -2.2 | 1.7 | 2.1 | 12.2 | 12.2 | 13.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.3 | 12.8 | 12.2 | 11.6 | 11.0 | 10.8 | 10.9 | 11.4 | 12.0 | 12.6 | 13.2 | 13.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 11.3 | 11.0 | 10.9 | 10.4 | 10.1 | 9.9 | 10.0 | 10.2 | 11.1 | 11.1 | 11.7 | 12.1 |
| Precipitation (mm) | 61 | 41 | 6 | 10 | 1 | 0 | 0 | 0 | 0 | 2 | 19 | 17 |
| Sunny days | 12 | 17 | 23 | 27 | 27 | 30 | 31 | 30 | 28 | 30 | 20 | 21 |
| Rainy days | 19 | 11 | 8 | 3 | 4 | 0 | 0 | 1 | 2 | 1 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Alt-Seeis is at