Average annual temperature is 13.8 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -3.7 °C
Number of sunny days: 213 days
Number of rainy days: 150 days
Number of snow days: 2 days
Look at detailed online map of Jamestown
* Weather data for Jamestown 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 | 28.9 | 27.4 | 25.1 | 22.6 | 18.9 | 20.3 | 22.1 | 29.0 | 30.9 | 35.8 | 33.4 |
| Average daytime temperature (°C) | 26.3 | 23.9 | 24.4 | 20.8 | 16.2 | 12.6 | 13.7 | 17.8 | 20.6 | 22.7 | 27.5 | 26.3 |
| Average temperature (°C) | 19.3 | 17.6 | 17.0 | 13.6 | 9.7 | 6.8 | 6.9 | 10.1 | 12.9 | 14.4 | 19.3 | 18.1 |
| Average night temperature (°C) | 13.1 | 12.3 | 11.2 | 7.4 | 4.5 | 2.2 | 1.2 | 3.0 | 5.2 | 7.3 | 11.4 | 11.7 |
| Absolute minimum temperature (°C) | 6.9 | 6.9 | 4.8 | -0.1 | -2.3 | -2.0 | -3.1 | -3.7 | -3.3 | 0.4 | 3.8 | 7.2 |
| 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 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.2 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.1 |
| 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) | 11.7 | 10.3 | 10.5 | 9.7 | 8.4 | 8.0 | 8.5 | 9.8 | 9.9 | 11.0 | 11.7 | 11.4 |
| Precipitation (mm) | 92 | 126 | 69 | 15 | 86 | 8 | 12 | 3 | 30 | 25 | 24 | 123 |
| Sunny days | 9 | 6 | 12 | 23 | 21 | 24 | 24 | 29 | 23 | 20 | 17 | 5 |
| Rainy days | 22 | 22 | 19 | 7 | 10 | 6 | 5 | 2 | 7 | 11 | 13 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Jamestown is at