Average annual temperature is 20.3 °C
Absolute maximum temperature: 39.4 °C
Absolute minimum temperature: -0.8 °C
Number of sunny days: 297 days
Number of rainy days: 68 days
Look at detailed online map of Geelboom
* Weather data for Geelboom 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) | 35.3 | 35.5 | 33.7 | 29.7 | 29.0 | 25.7 | 26.6 | 29.4 | 34.3 | 37.5 | 39.4 | 38.3 |
| Average daytime temperature (°C) | 32.6 | 30.7 | 29.9 | 26.9 | 23.1 | 19.5 | 20.1 | 23.7 | 26.5 | 31.3 | 34.0 | 34.0 |
| Average temperature (°C) | 26.5 | 24.5 | 23.3 | 19.3 | 15.8 | 11.8 | 12.3 | 15.3 | 18.2 | 23.4 | 26.6 | 26.8 |
| Average night temperature (°C) | 19.5 | 18.4 | 16.7 | 12.5 | 9.2 | 5.2 | 5.7 | 7.9 | 9.7 | 15.0 | 18.6 | 19.7 |
| Absolute minimum temperature (°C) | 13.2 | 13.4 | 11.3 | 6.0 | 3.4 | 1.7 | -0.8 | 3.3 | 2.9 | 8.5 | 10.1 | 15.2 |
| 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 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.6 | 13.0 | 12.2 | 11.4 | 10.8 | 10.5 | 10.6 | 11.2 | 11.9 | 12.7 | 13.4 | 13.8 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.5 | 11.7 | 10.7 | 10.4 | 9.6 | 9.4 | 9.5 | 10.3 | 10.7 | 11.5 | 11.9 | 12.0 |
| Precipitation (mm) | 6 | 19 | 21 | 5 | 21 | 9 | 5 | 0 | 10 | 10 | 23 | 116 |
| Sunny days | 24 | 15 | 19 | 26 | 24 | 27 | 30 | 31 | 28 | 27 | 24 | 22 |
| Rainy days | 7 | 13 | 12 | 4 | 7 | 3 | 1 | 0 | 2 | 4 | 6 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Geelboom is at