Average annual temperature is 21.5 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: -1.2 °C
Number of sunny days: 303 days
Number of rainy days: 62 days
Look at detailed online map of Egham
* Weather data for Egham 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) | 37.2 | 35.9 | 34.4 | 31.4 | 30.7 | 27.0 | 28.3 | 31.1 | 35.4 | 39.1 | 38.9 | 39.6 |
| Average daytime temperature (°C) | 33.6 | 31.2 | 31.3 | 28.4 | 25.0 | 21.2 | 21.4 | 25.1 | 28.3 | 32.5 | 34.3 | 34.2 |
| Average temperature (°C) | 27.9 | 25.2 | 24.7 | 20.7 | 17.5 | 13.0 | 13.7 | 16.7 | 19.7 | 24.6 | 27.4 | 27.4 |
| Average night temperature (°C) | 20.6 | 19.0 | 17.9 | 13.2 | 10.0 | 5.4 | 6.3 | 8.5 | 10.6 | 15.9 | 19.4 | 20.4 |
| Absolute minimum temperature (°C) | 14.2 | 13.6 | 13.9 | 5.9 | 3.3 | 1.6 | -1.2 | 2.6 | 3.4 | 10.0 | 10.1 | 14.3 |
| 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 | 11.5 | 10.8 | 10.5 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.7 |
| 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 | 11.0 | 10.9 | 10.4 | 9.7 | 9.6 | 9.7 | 10.4 | 11.0 | 11.2 | 11.7 | 12.0 |
| Precipitation (mm) | 17 | 33 | 8 | 28 | 11 | 1 | 0 | 0 | 2 | 12 | 6 | 58 |
| Sunny days | 25 | 16 | 23 | 26 | 25 | 28 | 30 | 31 | 28 | 27 | 25 | 19 |
| Rainy days | 6 | 12 | 8 | 4 | 6 | 2 | 1 | 0 | 2 | 4 | 5 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Egham is at