Average annual temperature is 17.9 °C
Absolute maximum temperature: 42.3 °C
Absolute minimum temperature: -0.3 °C
Number of sunny days: 281 days
Number of rainy days: 84 days
Look at detailed online map of Merweville
* Weather data for Merweville 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) | 42.3 | 38.3 | 38.6 | 34.6 | 30.4 | 22.1 | 23.1 | 30.7 | 35.5 | 36.6 | 40.3 | 40.8 |
| Average daytime temperature (°C) | 35.2 | 31.6 | 28.9 | 25.6 | 19.4 | 16.1 | 16.1 | 21.4 | 21.6 | 25.7 | 32.6 | 30.7 |
| Average temperature (°C) | 25.8 | 23.4 | 21.1 | 18.6 | 12.9 | 10.8 | 9.8 | 14.0 | 14.3 | 18.1 | 23.6 | 22.4 |
| Average night temperature (°C) | 17.5 | 16.6 | 14.3 | 11.3 | 6.8 | 5.9 | 4.4 | 6.8 | 7.1 | 11.2 | 14.8 | 15.4 |
| Absolute minimum temperature (°C) | 11.4 | 8.9 | 7.1 | 5.2 | 0.8 | 0.6 | 0.2 | -0.3 | 0.8 | 5.2 | 10.8 | 11.6 |
| 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) | 14.0 | 13.3 | 12.3 | 11.3 | 10.5 | 10.0 | 10.2 | 10.9 | 11.9 | 12.9 | 13.8 | 14.3 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.2 | 10.8 | 10.7 | 9.4 | 7.6 | 7.3 | 8.6 | 9.7 | 9.7 | 10.6 | 12.3 | 12.2 |
| Precipitation (mm) | 7 | 25 | 32 | 3 | 45 | 28 | 6 | 1 | 28 | 19 | 4 | 14 |
| Sunny days | 23 | 20 | 21 | 23 | 22 | 19 | 27 | 26 | 25 | 24 | 27 | 24 |
| Rainy days | 8 | 8 | 10 | 7 | 9 | 11 | 4 | 5 | 5 | 7 | 3 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Merweville is at