Average annual temperature is 16.9 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: 4.0 °C
Number of sunny days: 227 days
Number of rainy days: 138 days
Look at detailed online map of Grottobaai
* Weather data for Grottobaai 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 | 32.7 | 35.3 | 28.1 | 22.9 | 21.1 | 23.6 | 29.5 | 26.5 | 28.3 | 33.5 | 32.4 |
| Average daytime temperature (°C) | 26.0 | 26.7 | 24.6 | 21.1 | 18.7 | 16.4 | 16.4 | 18.5 | 16.9 | 23.4 | 24.5 | 25.8 |
| Average temperature (°C) | 21.1 | 21.5 | 19.5 | 16.5 | 14.2 | 13.3 | 12.1 | 13.8 | 13.2 | 18.2 | 19.3 | 20.6 |
| Average night temperature (°C) | 16.5 | 17.0 | 15.6 | 12.4 | 10.8 | 10.7 | 8.4 | 9.9 | 9.7 | 13.5 | 14.5 | 15.5 |
| Absolute minimum temperature (°C) | 13.7 | 11.6 | 11.4 | 7.8 | 7.1 | 6.7 | 4.0 | 5.2 | 4.8 | 9.5 | 11.9 | 12.0 |
| 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 | 11.3 | 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 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.6 | 11.6 | 10.2 | 8.6 | 8.2 | 6.0 | 8.0 | 9.1 | 8.9 | 11.5 | 11.8 | 13.3 |
| Precipitation (mm) | 5 | 12 | 57 | 42 | 76 | 163 | 61 | 75 | 106 | 10 | 13 | 7 |
| Sunny days | 24 | 22 | 16 | 18 | 22 | 8 | 17 | 18 | 12 | 22 | 22 | 26 |
| Rainy days | 7 | 6 | 15 | 12 | 9 | 22 | 14 | 13 | 18 | 9 | 8 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grottobaai during the most sunny months:
The largest precipitation sum in Grottobaai is at