Average annual temperature is 14.7 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -2.7 °C
Number of sunny days: 174 days
Number of rainy days: 190 days
Number of snow days: 1 day
Look at detailed online map of Boniswa
* Weather data for Boniswa 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) | 32.6 | 29.7 | 28.2 | 27.1 | 23.7 | 20.0 | 23.3 | 24.4 | 30.6 | 32.1 | 35.7 | 33.4 |
| Average daytime temperature (°C) | 26.1 | 23.9 | 24.5 | 22.0 | 16.7 | 14.6 | 15.5 | 19.7 | 21.8 | 21.4 | 27.0 | 24.7 |
| Average temperature (°C) | 19.4 | 18.1 | 17.8 | 15.0 | 11.0 | 9.1 | 9.2 | 12.1 | 13.9 | 14.2 | 19.2 | 17.4 |
| Average night temperature (°C) | 13.6 | 13.6 | 12.6 | 9.1 | 6.6 | 4.7 | 3.6 | 5.7 | 6.5 | 7.9 | 11.8 | 12.1 |
| Absolute minimum temperature (°C) | 7.3 | 9.0 | 5.8 | 1.4 | 1.5 | -0.3 | -2.2 | -2.7 | -2.1 | 1.4 | 3.3 | 8.2 |
| 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 | 14.2 |
| 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) | 10.2 | 9.3 | 10.5 | 9.7 | 7.6 | 8.6 | 8.6 | 9.9 | 9.8 | 9.2 | 11.3 | 9.4 |
| Precipitation (mm) | 187 | 215 | 74 | 15 | 86 | 5 | 14 | 3 | 32 | 72 | 51 | 189 |
| Sunny days | 6 | 5 | 8 | 23 | 16 | 21 | 22 | 26 | 23 | 10 | 12 | 2 |
| Rainy days | 25 | 23 | 23 | 7 | 15 | 9 | 8 | 5 | 7 | 21 | 18 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Boniswa is at