Average annual temperature is 15.9 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -3.2 °C
Number of sunny days: 237 days
Number of rainy days: 128 days
Look at detailed online map of Glenmarsh
* Weather data for Glenmarsh 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) | 29.9 | 26.6 | 29.2 | 26.7 | 26.8 | 23.4 | 22.3 | 27.9 | 31.9 | 33.2 | 33.3 | 32.3 |
| Average daytime temperature (°C) | 26.6 | 23.6 | 25.5 | 24.0 | 19.7 | 18.0 | 16.7 | 21.0 | 25.8 | 25.1 | 27.0 | 26.1 |
| Average temperature (°C) | 20.0 | 18.3 | 18.8 | 16.3 | 12.5 | 9.7 | 8.7 | 12.4 | 17.2 | 17.4 | 19.7 | 19.8 |
| Average night temperature (°C) | 13.3 | 14.3 | 12.6 | 9.2 | 6.8 | 2.6 | 1.9 | 4.5 | 8.8 | 10.5 | 12.6 | 14.1 |
| Absolute minimum temperature (°C) | 10.0 | 11.1 | 9.9 | 5.0 | 0.2 | -1.3 | -3.2 | -2.2 | 2.8 | 3.2 | 4.1 | 10.4 |
| 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 | 10.6 | 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) | 11.7 | 8.6 | 10.5 | 10.2 | 8.9 | 9.6 | 9.0 | 10.0 | 10.6 | 9.5 | 10.4 | 10.6 |
| Precipitation (mm) | 33 | 227 | 10 | 9 | 54 | 20 | 7 | 1 | 16 | 88 | 51 | 88 |
| Sunny days | 19 | 9 | 16 | 23 | 18 | 27 | 27 | 30 | 25 | 22 | 13 | 8 |
| Rainy days | 12 | 19 | 15 | 7 | 13 | 3 | 4 | 1 | 5 | 9 | 17 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Glenmarsh is at