Average annual temperature is 17.0 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: 4.0 °C
Number of sunny days: 169 days
Number of rainy days: 196 days
Look at detailed online map of Alderly
* Weather data for Alderly 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) | 35.1 | 33.6 | 33.5 | 31.6 | 30.5 | 26.1 | 28.2 | 29.4 | 34.8 | 33.6 | 34.3 | 32.4 |
| Average daytime temperature (°C) | 26.8 | 24.9 | 25.2 | 24.3 | 19.9 | 19.2 | 20.0 | 21.5 | 23.4 | 21.1 | 25.0 | 23.2 |
| Average temperature (°C) | 21.2 | 20.3 | 19.8 | 17.9 | 14.7 | 13.2 | 13.1 | 14.5 | 16.4 | 15.9 | 19.2 | 18.6 |
| Average night temperature (°C) | 16.5 | 16.8 | 15.8 | 13.0 | 10.6 | 8.4 | 7.8 | 9.1 | 11.1 | 11.5 | 14.6 | 14.9 |
| Absolute minimum temperature (°C) | 10.3 | 12.2 | 11.0 | 8.7 | 5.3 | 5.0 | 4.0 | 4.8 | 4.9 | 6.3 | 6.4 | 9.6 |
| 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 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.2 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 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 | 13.0 |
| Sunshine mean duration (h) | 10.0 | 7.9 | 9.1 | 9.0 | 7.4 | 8.2 | 8.3 | 8.6 | 8.5 | 7.8 | 9.1 | 6.8 |
| Precipitation (mm) | 71 | 118 | 56 | 27 | 88 | 57 | 15 | 15 | 39 | 154 | 50 | 135 |
| Sunny days | 12 | 2 | 8 | 18 | 18 | 22 | 25 | 24 | 15 | 11 | 10 | 4 |
| Rainy days | 19 | 26 | 23 | 12 | 13 | 8 | 6 | 7 | 15 | 20 | 20 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Alderly is at