Average annual temperature is 13.1 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -4.3 °C
Number of sunny days: 206 days
Number of rainy days: 156 days
Number of snow days: 3 days
Look at detailed online map of Helena
* Weather data for Helena 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) | 32.2 | 28.2 | 26.4 | 24.4 | 21.8 | 18.4 | 19.7 | 21.8 | 28.0 | 29.8 | 35.2 | 32.6 |
| Average daytime temperature (°C) | 25.5 | 23.4 | 23.7 | 20.4 | 15.5 | 12.0 | 13.0 | 17.1 | 19.7 | 21.6 | 26.6 | 25.5 |
| Average temperature (°C) | 18.6 | 17.0 | 16.3 | 13.3 | 9.1 | 6.3 | 6.2 | 9.4 | 12.1 | 13.6 | 18.6 | 17.2 |
| Average night temperature (°C) | 12.5 | 11.6 | 10.5 | 7.0 | 3.8 | 1.6 | 0.3 | 2.0 | 4.3 | 6.6 | 10.5 | 11.0 |
| Absolute minimum temperature (°C) | 6.7 | 6.1 | 4.5 | 0.2 | -2.8 | -2.3 | -4.0 | -3.9 | -4.3 | 0.0 | 3.2 | 7.2 |
| 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 | 14.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 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) | 11.2 | 10.2 | 10.3 | 9.7 | 8.2 | 8.4 | 8.6 | 9.9 | 9.8 | 10.3 | 11.5 | 10.9 |
| Precipitation (mm) | 129 | 118 | 67 | 16 | 74 | 7 | 14 | 2 | 31 | 25 | 25 | 98 |
| Sunny days | 9 | 7 | 13 | 20 | 20 | 24 | 22 | 28 | 23 | 19 | 18 | 3 |
| Rainy days | 22 | 21 | 18 | 10 | 11 | 6 | 6 | 3 | 7 | 12 | 12 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Helena is at