Average annual temperature is 18.6 °C
Absolute maximum temperature: 40.2 °C
Absolute minimum temperature: -1.3 °C
Number of sunny days: 295 days
Number of rainy days: 70 days
Look at detailed online map of Siyathemba
* Weather data for Siyathemba South Africa is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 39.7 | 36.7 | 33.9 | 29.8 | 28.1 | 23.6 | 25.1 | 27.5 | 33.8 | 36.8 | 40.2 | 39.2 |
| Average daytime temperature (°C) | 34.4 | 32.4 | 29.6 | 25.5 | 20.5 | 16.4 | 17.2 | 21.2 | 22.1 | 28.1 | 32.7 | 32.4 |
| Average temperature (°C) | 27.4 | 25.2 | 22.4 | 17.9 | 13.1 | 9.5 | 9.8 | 13.2 | 14.3 | 20.5 | 25.2 | 25.2 |
| Average night temperature (°C) | 19.4 | 17.7 | 15.2 | 10.4 | 6.7 | 3.7 | 3.2 | 5.7 | 6.5 | 12.3 | 16.8 | 17.6 |
| Absolute minimum temperature (°C) | 11.1 | 12.2 | 9.5 | 4.7 | 0.7 | 0.1 | -1.3 | -0.3 | 0.2 | 6.4 | 9.8 | 13.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.3 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.6 | 12.0 | 10.7 | 10.2 | 9.3 | 8.4 | 9.1 | 10.1 | 10.5 | 11.3 | 12.3 | 12.1 |
| Precipitation (mm) | 5 | 13 | 34 | 3 | 19 | 8 | 1 | 1 | 36 | 12 | 2 | 82 |
| Sunny days | 23 | 20 | 23 | 28 | 21 | 24 | 28 | 28 | 26 | 26 | 26 | 22 |
| Rainy days | 8 | 8 | 8 | 2 | 10 | 6 | 3 | 3 | 4 | 5 | 4 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siyathemba is at