Average annual temperature is 14.4 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -3.9 °C
Number of sunny days: 239 days
Number of rainy days: 125 days
Number of snow days: 1 day
Look at detailed online map of Stewarton
* Weather data for Stewarton 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) | 33.6 | 30.9 | 30.5 | 25.9 | 23.2 | 19.6 | 20.6 | 23.0 | 30.2 | 31.8 | 36.6 | 35.4 |
| Average daytime temperature (°C) | 28.3 | 25.8 | 25.7 | 21.4 | 16.7 | 13.1 | 14.4 | 18.5 | 20.9 | 24.4 | 28.2 | 27.9 |
| Average temperature (°C) | 20.6 | 18.8 | 18.1 | 13.7 | 9.6 | 6.6 | 7.0 | 10.1 | 13.1 | 15.9 | 20.4 | 19.8 |
| Average night temperature (°C) | 13.6 | 13.0 | 11.4 | 6.6 | 3.4 | 1.1 | 0.2 | 2.0 | 5.2 | 7.8 | 11.9 | 12.9 |
| Absolute minimum temperature (°C) | 7.2 | 7.9 | 5.4 | 1.3 | -2.5 | -2.7 | -3.9 | -3.8 | -2.6 | 2.4 | 4.7 | 8.8 |
| 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) | 13.9 | 13.2 | 12.3 | 11.3 | 10.6 | 10.2 | 10.4 | 11.0 | 11.9 | 12.8 | 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 | 13.0 |
| Sunshine mean duration (h) | 12.3 | 10.9 | 10.7 | 9.9 | 8.5 | 8.6 | 8.7 | 9.9 | 10.0 | 11.4 | 11.8 | 11.7 |
| Precipitation (mm) | 85 | 101 | 58 | 14 | 96 | 8 | 16 | 2 | 38 | 13 | 19 | 106 |
| Sunny days | 17 | 11 | 16 | 22 | 21 | 24 | 25 | 27 | 25 | 22 | 18 | 11 |
| Rainy days | 14 | 17 | 15 | 8 | 10 | 6 | 5 | 4 | 5 | 9 | 12 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Stewarton is at