Average annual temperature is 21.3 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -0.8 °C
Number of sunny days: 296 days
Number of rainy days: 69 days
Look at detailed online map of Seatlane
* Weather data for Seatlane 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) | 37.1 | 36.3 | 34.7 | 31.5 | 30.6 | 26.1 | 28.1 | 30.9 | 35.1 | 39.0 | 38.8 | 39.5 |
| Average daytime temperature (°C) | 33.7 | 31.3 | 31.1 | 28.3 | 24.6 | 20.6 | 21.1 | 24.8 | 27.8 | 32.2 | 34.3 | 34.0 |
| Average temperature (°C) | 27.8 | 25.2 | 24.2 | 20.5 | 17.0 | 12.3 | 13.3 | 16.3 | 19.3 | 24.4 | 27.5 | 27.2 |
| Average night temperature (°C) | 20.4 | 19.0 | 17.3 | 12.8 | 9.6 | 4.7 | 5.8 | 7.9 | 10.1 | 15.6 | 19.2 | 20.0 |
| Absolute minimum temperature (°C) | 13.4 | 13.7 | 13.5 | 6.5 | 1.9 | 0.4 | -0.8 | 2.7 | 3.2 | 9.6 | 10.0 | 13.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.6 | 13.0 | 12.2 | 11.5 | 10.8 | 10.5 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.8 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.6 | 11.2 | 10.9 | 10.5 | 9.6 | 9.6 | 9.7 | 10.4 | 10.9 | 11.3 | 11.8 | 12.1 |
| Precipitation (mm) | 3 | 44 | 12 | 3 | 17 | 0 | 0 | 0 | 2 | 5 | 7 | 59 |
| Sunny days | 26 | 14 | 19 | 24 | 27 | 27 | 31 | 31 | 28 | 28 | 22 | 19 |
| Rainy days | 5 | 14 | 12 | 6 | 4 | 3 | 0 | 0 | 2 | 3 | 8 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Seatlane is at