Average annual temperature is 14.6 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: 0.7 °C
Number of sunny days: 187 days
Number of rainy days: 178 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) | 39.8 | 35.3 | 32.5 | 32.8 | 26.4 | 19.7 | 21.7 | 28.5 | 33.8 | 29.7 | 35.7 | 38.2 |
| Average daytime temperature (°C) | 27.9 | 25.0 | 24.3 | 21.6 | 17.0 | 14.2 | 14.8 | 18.7 | 18.0 | 19.0 | 25.3 | 23.3 |
| Average temperature (°C) | 20.4 | 18.8 | 17.7 | 15.3 | 11.6 | 10.2 | 9.2 | 12.1 | 11.5 | 13.6 | 17.7 | 17.0 |
| Average night temperature (°C) | 14.6 | 14.0 | 12.6 | 9.5 | 6.8 | 6.6 | 4.5 | 6.0 | 6.3 | 8.7 | 11.1 | 12.1 |
| Absolute minimum temperature (°C) | 7.8 | 8.8 | 5.8 | 5.2 | 3.9 | 2.8 | 0.7 | 1.2 | 1.3 | 4.6 | 6.0 | 9.3 |
| 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 | 10.2 | 10.9 | 11.9 | 12.9 | 13.9 | 14.3 |
| 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) | 11.2 | 9.6 | 9.6 | 8.4 | 7.5 | 6.6 | 7.8 | 9.2 | 9.0 | 9.5 | 11.3 | 10.5 |
| Precipitation (mm) | 62 | 62 | 61 | 32 | 76 | 60 | 52 | 16 | 125 | 93 | 12 | 72 |
| Sunny days | 14 | 8 | 14 | 16 | 19 | 14 | 19 | 22 | 18 | 13 | 18 | 12 |
| Rainy days | 17 | 20 | 17 | 14 | 12 | 16 | 12 | 9 | 12 | 18 | 12 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haarlem is at