Average annual temperature is 14.9 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -1.6 °C
Number of sunny days: 207 days
Number of rainy days: 158 days
Look at detailed online map of Uniondale
* Weather data for Uniondale 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) | 39.5 | 36.3 | 34.7 | 33.2 | 27.8 | 19.9 | 22.3 | 29.3 | 34.6 | 31.2 | 38.0 | 38.8 |
| Average daytime temperature (°C) | 30.0 | 26.8 | 25.8 | 22.2 | 17.3 | 14.5 | 14.9 | 19.4 | 19.0 | 20.9 | 27.6 | 25.7 |
| Average temperature (°C) | 21.4 | 19.8 | 18.2 | 15.4 | 11.3 | 9.6 | 8.5 | 11.5 | 11.7 | 14.5 | 18.9 | 18.1 |
| Average night temperature (°C) | 15.0 | 14.5 | 12.9 | 9.5 | 6.3 | 5.3 | 3.0 | 4.9 | 5.6 | 9.1 | 11.7 | 12.4 |
| Absolute minimum temperature (°C) | 9.2 | 8.8 | 6.7 | 4.4 | 0.7 | 1.0 | -1.6 | -0.3 | 0.5 | 4.6 | 6.7 | 8.5 |
| 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 | 11.2 | 10.4 | 10.0 | 10.2 | 10.9 | 11.9 | 12.9 | 13.9 | 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) | 11.5 | 10.0 | 9.5 | 8.4 | 7.3 | 6.6 | 7.7 | 9.1 | 9.0 | 9.8 | 11.5 | 10.9 |
| Precipitation (mm) | 36 | 38 | 55 | 22 | 47 | 52 | 28 | 9 | 71 | 56 | 6 | 53 |
| Sunny days | 17 | 13 | 15 | 15 | 20 | 15 | 19 | 21 | 19 | 16 | 21 | 16 |
| Rainy days | 14 | 15 | 16 | 15 | 11 | 15 | 12 | 10 | 11 | 15 | 9 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Uniondale is at