Average annual temperature is 19.5 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: -1.0 °C
Number of sunny days: 303 days
Number of rainy days: 62 days
Look at detailed online map of Merwelaagte
* Weather data for Merwelaagte 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) | 40.0 | 37.1 | 35.0 | 31.0 | 29.2 | 24.3 | 24.8 | 28.6 | 35.4 | 37.4 | 39.8 | 39.5 |
| Average daytime temperature (°C) | 35.0 | 33.2 | 29.8 | 26.1 | 21.2 | 16.6 | 17.8 | 21.6 | 22.1 | 28.4 | 32.8 | 32.3 |
| Average temperature (°C) | 28.5 | 26.4 | 23.1 | 19.2 | 14.3 | 10.4 | 11.0 | 14.6 | 14.9 | 21.3 | 25.7 | 25.7 |
| Average night temperature (°C) | 20.4 | 18.7 | 15.5 | 11.3 | 7.5 | 4.9 | 4.8 | 7.4 | 6.8 | 12.9 | 16.9 | 17.9 |
| Absolute minimum temperature (°C) | 12.0 | 12.2 | 9.3 | 5.3 | 1.6 | 0.9 | -1.0 | 1.4 | -0.4 | 6.4 | 9.5 | 13.2 |
| 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 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.3 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| 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) | 12.7 | 12.0 | 10.7 | 10.2 | 9.3 | 8.3 | 9.0 | 10.1 | 10.5 | 11.3 | 12.4 | 12.2 |
| Precipitation (mm) | 6 | 4 | 23 | 3 | 27 | 10 | 2 | 2 | 13 | 12 | 4 | 43 |
| Sunny days | 26 | 23 | 24 | 25 | 23 | 24 | 26 | 29 | 25 | 26 | 27 | 25 |
| Rainy days | 5 | 5 | 7 | 5 | 8 | 6 | 5 | 2 | 5 | 5 | 3 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Merwelaagte is at