Average annual temperature is 17.1 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 2.6 °C
Number of sunny days: 232 days
Number of rainy days: 133 days
Look at detailed online map of Saint Helena Bay
* Weather data for Saint Helena Bay 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) | 37.0 | 34.9 | 33.0 | 35.4 | 25.7 | 21.6 | 21.8 | 28.0 | 28.2 | 34.0 | 38.0 | 35.5 |
| Average daytime temperature (°C) | 27.1 | 28.0 | 24.4 | 23.1 | 18.8 | 16.0 | 16.9 | 18.9 | 17.6 | 25.4 | 26.0 | 26.8 |
| Average temperature (°C) | 21.1 | 21.6 | 19.2 | 17.1 | 14.1 | 13.2 | 11.9 | 14.0 | 13.3 | 18.9 | 19.8 | 20.8 |
| Average night temperature (°C) | 16.3 | 17.1 | 15.4 | 12.7 | 10.5 | 10.5 | 7.6 | 9.6 | 9.1 | 13.2 | 14.5 | 15.4 |
| Absolute minimum temperature (°C) | 14.5 | 11.9 | 12.2 | 8.0 | 4.5 | 5.9 | 2.6 | 5.5 | 3.8 | 9.3 | 12.1 | 13.3 |
| 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) | 14.0 | 13.3 | 12.3 | 11.3 | 10.4 | 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) | 12.3 | 11.3 | 10.1 | 8.5 | 8.2 | 6.1 | 7.9 | 9.3 | 9.4 | 11.1 | 11.4 | 13.2 |
| Precipitation (mm) | 3 | 11 | 40 | 31 | 55 | 108 | 27 | 42 | 46 | 8 | 8 | 1 |
| Sunny days | 24 | 21 | 15 | 18 | 22 | 7 | 19 | 18 | 14 | 23 | 23 | 28 |
| Rainy days | 7 | 7 | 16 | 12 | 9 | 23 | 12 | 13 | 16 | 8 | 7 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Saint Helena Bay during the most sunny months:
The largest precipitation sum in Saint Helena Bay is at