Average annual temperature is 13.8 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -4.2 °C
Number of sunny days: 216 days
Number of rainy days: 147 days
Number of snow days: 2 days
Look at detailed online map of Haarlem
* Weather data for Haarlem 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) | 32.3 | 28.9 | 28.0 | 24.9 | 22.3 | 18.6 | 19.5 | 21.5 | 28.6 | 30.4 | 35.3 | 33.3 |
| Average daytime temperature (°C) | 26.5 | 24.0 | 24.2 | 20.2 | 15.7 | 11.9 | 13.1 | 17.1 | 19.9 | 22.7 | 26.9 | 26.5 |
| Average temperature (°C) | 19.6 | 17.9 | 17.1 | 13.5 | 9.6 | 6.0 | 6.8 | 9.7 | 12.8 | 14.8 | 19.5 | 18.6 |
| Average night temperature (°C) | 13.4 | 12.6 | 11.3 | 7.1 | 4.3 | 1.2 | 0.9 | 2.5 | 5.2 | 7.7 | 11.7 | 12.3 |
| Absolute minimum temperature (°C) | 7.0 | 8.2 | 4.7 | 1.9 | -0.4 | -2.1 | -4.2 | -3.9 | -2.9 | 0.9 | 4.3 | 8.2 |
| 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) | 13.9 | 13.2 | 12.3 | 11.3 | 10.6 | 10.2 | 10.3 | 11.0 | 11.9 | 12.8 | 13.7 | 14.1 |
| 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 | 14.0 |
| Sunshine mean duration (h) | 12.2 | 10.7 | 10.6 | 9.8 | 8.5 | 8.3 | 8.6 | 10.0 | 9.9 | 11.2 | 11.9 | 11.7 |
| Precipitation (mm) | 113 | 122 | 73 | 18 | 83 | 26 | 19 | 5 | 46 | 19 | 23 | 140 |
| Sunny days | 10 | 9 | 13 | 21 | 21 | 22 | 23 | 26 | 23 | 21 | 19 | 8 |
| Rainy days | 21 | 19 | 18 | 9 | 10 | 8 | 6 | 5 | 7 | 10 | 11 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haarlem is at