Average annual temperature is 15.9 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 1.5 °C
Number of sunny days: 174 days
Number of rainy days: 191 days
Look at detailed online map of Thornham
* Weather data for Thornham 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) | 38.0 | 31.2 | 31.5 | 30.9 | 27.3 | 23.3 | 24.2 | 31.0 | 27.6 | 25.5 | 32.3 | 34.7 |
| Average daytime temperature (°C) | 23.8 | 22.7 | 22.3 | 19.9 | 18.0 | 17.1 | 16.2 | 19.5 | 16.6 | 18.9 | 22.2 | 21.9 |
| Average temperature (°C) | 20.3 | 19.8 | 18.9 | 16.3 | 14.2 | 13.5 | 11.2 | 14.0 | 12.5 | 15.2 | 17.8 | 18.0 |
| Average night temperature (°C) | 16.8 | 16.8 | 15.9 | 13.0 | 10.6 | 10.3 | 6.7 | 8.7 | 8.6 | 11.5 | 12.8 | 14.0 |
| Absolute minimum temperature (°C) | 12.8 | 12.6 | 11.3 | 9.0 | 7.5 | 7.1 | 1.5 | 3.0 | 4.9 | 8.0 | 9.2 | 10.6 |
| 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 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.1 | 13.3 | 12.3 | 11.2 | 10.4 | 9.9 | 10.1 | 10.9 | 11.9 | 12.9 | 13.9 | 14.4 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 11.3 | 9.9 | 9.4 | 8.4 | 7.7 | 6.5 | 8.1 | 9.4 | 9.1 | 9.3 | 11.5 | 11.1 |
| Precipitation (mm) | 75 | 82 | 91 | 58 | 127 | 105 | 57 | 23 | 149 | 71 | 25 | 87 |
| Sunny days | 17 | 8 | 16 | 14 | 17 | 10 | 19 | 18 | 13 | 12 | 18 | 12 |
| Rainy days | 14 | 20 | 15 | 16 | 14 | 20 | 12 | 13 | 17 | 19 | 12 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Thornham is at