Average annual temperature is 16.5 °C
Absolute maximum temperature: 41.4 °C
Absolute minimum temperature: 1.3 °C
Number of sunny days: 211 days
Number of rainy days: 154 days
Look at detailed online map of Slangrivier
* Weather data for Slangrivier 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) | 35.9 | 36.8 | 33.6 | 35.3 | 32.3 | 22.7 | 22.8 | 33.1 | 27.5 | 31.3 | 41.4 | 33.6 |
| Average daytime temperature (°C) | 28.8 | 27.7 | 25.2 | 23.2 | 19.8 | 16.8 | 16.2 | 21.1 | 20.1 | 22.8 | 29.2 | 26.5 |
| Average temperature (°C) | 21.7 | 21.1 | 19.3 | 16.4 | 13.5 | 12.4 | 10.5 | 13.3 | 13.4 | 16.5 | 20.4 | 20.0 |
| Average night temperature (°C) | 16.4 | 16.3 | 14.9 | 11.2 | 8.7 | 8.3 | 5.6 | 7.1 | 8.1 | 11.4 | 14.0 | 15.0 |
| Absolute minimum temperature (°C) | 12.8 | 12.0 | 9.8 | 6.6 | 2.0 | 2.2 | 1.3 | 1.7 | 3.2 | 6.1 | 9.9 | 11.2 |
| 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 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.1 | 13.3 | 12.3 | 11.2 | 10.4 | 9.9 | 10.1 | 10.9 | 11.9 | 12.9 | 13.9 | 14.4 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 10.8 | 9.4 | 8.9 | 8.8 | 7.3 | 6.5 | 8.3 | 9.1 | 9.1 | 9.6 | 11.5 | 10.7 |
| Precipitation (mm) | 31 | 42 | 109 | 24 | 60 | 107 | 23 | 12 | 77 | 79 | 1 | 56 |
| Sunny days | 20 | 14 | 13 | 17 | 17 | 13 | 21 | 21 | 18 | 17 | 25 | 15 |
| Rainy days | 11 | 14 | 18 | 13 | 14 | 17 | 10 | 10 | 12 | 14 | 5 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Slangrivier is at