Average annual temperature is 21.5 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: 6.3 °C
Number of sunny days: 178 days
Number of rainy days: 187 days
Look at detailed online map of Rotterdam
* Weather data for Rotterdam 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) | 35.0 | 32.5 | 33.0 | 33.9 | 31.0 | 32.8 | 29.6 | 36.8 | 39.3 | 37.9 | 40.0 | 38.4 |
| Average daytime temperature (°C) | 30.1 | 27.5 | 27.6 | 28.2 | 25.8 | 26.8 | 22.9 | 25.7 | 30.4 | 29.0 | 32.7 | 29.0 |
| Average temperature (°C) | 24.7 | 23.2 | 22.7 | 21.8 | 19.6 | 18.6 | 15.6 | 18.2 | 22.7 | 22.3 | 25.6 | 23.9 |
| Average night temperature (°C) | 19.7 | 20.0 | 18.0 | 15.6 | 14.1 | 11.5 | 8.9 | 11.3 | 15.3 | 16.1 | 18.8 | 19.2 |
| Absolute minimum temperature (°C) | 15.0 | 16.2 | 14.1 | 12.1 | 10.8 | 8.6 | 6.4 | 6.3 | 11.0 | 11.0 | 12.8 | 16.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.5 | 11.0 | 10.7 | 10.8 | 11.3 | 12.0 | 12.6 | 13.2 | 13.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 10.1 | 7.9 | 10.2 | 9.9 | 8.5 | 9.3 | 8.2 | 8.9 | 9.2 | 8.6 | 9.7 | 8.5 |
| Precipitation (mm) | 79 | 334 | 55 | 5 | 13 | 1 | 26 | 13 | 14 | 64 | 17 | 180 |
| Sunny days | 7 | 1 | 6 | 20 | 16 | 27 | 17 | 17 | 23 | 17 | 17 | 10 |
| Rainy days | 24 | 27 | 25 | 10 | 15 | 3 | 14 | 14 | 7 | 14 | 13 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rotterdam is at