Average annual temperature is 15.1 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: -4.3 °C
Number of sunny days: 230 days
Number of rainy days: 134 days
Number of snow days: 1 day
Look at detailed online map of Excelsior
* Weather data for Excelsior 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) | 34.1 | 31.0 | 29.7 | 26.9 | 24.2 | 20.3 | 21.4 | 23.9 | 31.0 | 32.6 | 37.7 | 36.1 |
| Average daytime temperature (°C) | 28.7 | 26.2 | 26.5 | 22.2 | 17.7 | 14.1 | 15.4 | 19.4 | 22.2 | 25.3 | 29.2 | 28.8 |
| Average temperature (°C) | 21.1 | 19.5 | 18.7 | 14.2 | 10.5 | 6.9 | 7.6 | 10.6 | 13.9 | 16.6 | 21.1 | 20.6 |
| Average night temperature (°C) | 14.2 | 13.5 | 12.2 | 7.0 | 4.2 | 1.0 | 0.9 | 2.4 | 5.5 | 8.6 | 12.5 | 13.8 |
| Absolute minimum temperature (°C) | 8.2 | 8.6 | 6.2 | 1.2 | -1.9 | -2.4 | -4.3 | -3.5 | -2.9 | 2.7 | 5.2 | 9.9 |
| 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) | 13.9 | 13.2 | 12.3 | 11.3 | 10.6 | 10.2 | 10.4 | 11.0 | 11.9 | 12.8 | 13.7 | 14.1 |
| 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) | 12.4 | 10.7 | 10.7 | 9.7 | 8.6 | 8.4 | 8.7 | 9.9 | 10.0 | 11.3 | 11.9 | 11.8 |
| Precipitation (mm) | 89 | 98 | 51 | 19 | 67 | 9 | 21 | 3 | 39 | 20 | 24 | 144 |
| Sunny days | 13 | 11 | 14 | 23 | 21 | 21 | 23 | 28 | 24 | 22 | 19 | 11 |
| Rainy days | 18 | 17 | 17 | 7 | 10 | 9 | 7 | 3 | 6 | 9 | 11 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Excelsior is at