Average annual temperature is 21.4 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 4.4 °C
Number of sunny days: 236 days
Number of rainy days: 129 days
Look at detailed online map of Streatham
* Weather data for Streatham 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) | 36.0 | 33.2 | 35.2 | 33.6 | 30.6 | 32.9 | 28.2 | 35.9 | 38.1 | 37.7 | 37.8 | 34.4 |
| Average daytime temperature (°C) | 30.2 | 28.8 | 29.9 | 29.2 | 25.1 | 25.3 | 22.4 | 25.8 | 30.2 | 29.3 | 31.1 | 29.1 |
| Average temperature (°C) | 24.5 | 23.7 | 23.6 | 22.2 | 18.9 | 17.4 | 15.2 | 18.3 | 22.8 | 22.6 | 24.5 | 23.9 |
| Average night temperature (°C) | 19.1 | 19.8 | 18.2 | 16.0 | 13.7 | 10.9 | 9.0 | 11.3 | 15.5 | 16.0 | 18.3 | 19.1 |
| Absolute minimum temperature (°C) | 15.0 | 16.7 | 14.5 | 12.8 | 10.1 | 7.3 | 4.4 | 7.1 | 11.4 | 11.3 | 10.5 | 15.7 |
| 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 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.5 | 10.9 | 10.7 | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 11.1 | 10.4 | 10.9 | 10.3 | 9.0 | 9.7 | 9.1 | 10.0 | 10.1 | 10.1 | 11.1 | 9.7 |
| Precipitation (mm) | 59 | 147 | 29 | 18 | 38 | 0 | 10 | 0 | 7 | 35 | 26 | 123 |
| Sunny days | 16 | 4 | 13 | 23 | 21 | 28 | 26 | 27 | 25 | 23 | 16 | 14 |
| Rainy days | 15 | 24 | 18 | 7 | 10 | 2 | 5 | 4 | 5 | 8 | 14 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Streatham is at