Average annual temperature is 17.3 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 189 days
Number of rainy days: 176 days
Look at detailed online map of Old Green River
* Weather data for Old Green River 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) | 35.8 | 33.1 | 32.4 | 34.8 | 27.2 | 24.8 | 26.1 | 32.1 | 36.4 | 29.1 | 33.2 | 37.0 |
| Average daytime temperature (°C) | 27.5 | 26.7 | 26.6 | 24.9 | 20.0 | 18.2 | 18.3 | 21.9 | 21.1 | 20.4 | 25.4 | 24.5 |
| Average temperature (°C) | 22.4 | 21.5 | 20.6 | 18.5 | 14.8 | 13.0 | 12.5 | 15.0 | 15.0 | 15.7 | 19.4 | 19.3 |
| Average night temperature (°C) | 17.6 | 17.3 | 15.9 | 13.2 | 10.6 | 8.9 | 7.4 | 9.4 | 9.9 | 11.5 | 14.0 | 14.8 |
| Absolute minimum temperature (°C) | 10.5 | 12.9 | 10.7 | 8.3 | 5.2 | 4.4 | 3.5 | 4.7 | 5.4 | 6.1 | 9.3 | 11.6 |
| 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) | 14.0 | 13.3 | 12.3 | 11.3 | 10.4 | 10.0 | 10.2 | 10.9 | 11.9 | 12.9 | 13.8 | 14.3 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 8.4 | 8.2 | 8.8 | 8.4 | 7.1 | 7.5 | 8.8 | 9.0 | 7.9 | 8.3 | 10.6 | 7.9 |
| Precipitation (mm) | 59 | 101 | 82 | 13 | 143 | 67 | 16 | 4 | 98 | 93 | 25 | 115 |
| Sunny days | 13 | 8 | 12 | 19 | 17 | 20 | 22 | 24 | 17 | 12 | 18 | 7 |
| Rainy days | 18 | 20 | 19 | 11 | 14 | 10 | 9 | 7 | 13 | 19 | 12 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Old Green River during the most sunny months:
The largest precipitation sum in Old Green River is at