Average annual temperature is 19.5 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: 0.6 °C
Number of sunny days: 167 days
Number of rainy days: 198 days
Look at detailed online map of James Island
* Weather data for James Island United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 21.2 | 26.8 | 27.5 | 27.0 | 32.3 | 33.3 | 36.2 | 34.7 | 32.9 | 28.9 | 26.1 | 21.9 |
| Average daytime temperature (°C) | 16.8 | 19.7 | 20.3 | 23.6 | 24.9 | 28.4 | 31.4 | 31.2 | 28.3 | 24.3 | 19.2 | 16.5 |
| Average temperature (°C) | 12.3 | 15.1 | 16.1 | 19.1 | 21.1 | 24.5 | 27.6 | 27.6 | 24.0 | 19.5 | 14.5 | 12.3 |
| Average night temperature (°C) | 8.7 | 11.7 | 12.4 | 15.2 | 17.4 | 21.2 | 24.6 | 24.4 | 20.4 | 15.8 | 11.0 | 9.1 |
| Absolute minimum temperature (°C) | 0.6 | 1.6 | 2.4 | 7.8 | 11.7 | 16.4 | 21.2 | 22.0 | 17.2 | 10.4 | 3.0 | 1.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.9 | 8.8 | 10.3 | 10.5 | 11.4 | 11.8 | 11.4 | 10.3 | 9.0 | 7.0 | 6.8 |
| Precipitation (mm) | 82 | 96 | 42 | 152 | 120 | 187 | 186 | 158 | 64 | 70 | 49 | 267 |
| Sunny days | 18 | 15 | 20 | 15 | 9 | 7 | 2 | 6 | 17 | 20 | 19 | 19 |
| Rainy days | 13 | 13 | 11 | 15 | 22 | 23 | 29 | 25 | 13 | 11 | 11 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit James Island during the most sunny months:
The largest precipitation sum in James Island is at