Average annual temperature is 21.5 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -0.3 °C
Number of sunny days: 305 days
Number of rainy days: 60 days
Look at detailed online map of Greenwich
* Weather data for Greenwich 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) | 37.4 | 36.7 | 35.1 | 31.8 | 30.9 | 27.0 | 28.1 | 30.9 | 35.1 | 38.9 | 39.3 | 39.5 |
| Average daytime temperature (°C) | 34.2 | 31.5 | 31.8 | 28.7 | 24.8 | 20.9 | 21.2 | 24.8 | 27.6 | 32.3 | 34.7 | 34.5 |
| Average temperature (°C) | 28.1 | 25.2 | 24.9 | 20.9 | 17.3 | 12.8 | 13.5 | 16.5 | 19.4 | 24.5 | 27.5 | 27.7 |
| Average night temperature (°C) | 20.7 | 19.0 | 17.9 | 13.5 | 9.9 | 5.4 | 6.5 | 8.6 | 10.6 | 16.1 | 19.5 | 20.4 |
| Absolute minimum temperature (°C) | 14.9 | 14.0 | 14.9 | 7.4 | 2.8 | 1.4 | -0.3 | 2.6 | 3.2 | 10.2 | 9.8 | 15.8 |
| 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) | 12.4 | 11.0 | 10.6 | 10.4 | 9.6 | 9.6 | 9.7 | 10.3 | 10.8 | 11.3 | 11.6 | 12.0 |
| Precipitation (mm) | 5 | 35 | 8 | 5 | 15 | 1 | 0 | 0 | 3 | 3 | 10 | 82 |
| Sunny days | 25 | 13 | 22 | 26 | 28 | 28 | 31 | 31 | 28 | 27 | 24 | 22 |
| Rainy days | 6 | 15 | 9 | 4 | 3 | 2 | 0 | 0 | 2 | 4 | 6 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Greenwich is at