Average annual temperature is 26.3 °C
Absolute maximum temperature: 29.5 °C
Absolute minimum temperature: 20.9 °C
Number of sunny days: 86 days
Number of rainy days: 279 days
Look at detailed online map of Saint Thomas Island
* Weather data for Saint Thomas Island U.S. Virgin Islands is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 26.0 | 25.3 | 25.5 | 26.5 | 27.6 | 28.7 | 28.9 | 29.5 | 29.3 | 29.4 | 28.4 | 27.7 |
| Average daytime temperature (°C) | 25.2 | 24.7 | 24.9 | 25.5 | 27.1 | 28.1 | 28.5 | 28.7 | 29.0 | 28.4 | 27.6 | 26.4 |
| Average temperature (°C) | 24.5 | 24.1 | 24.3 | 24.8 | 26.5 | 27.4 | 27.7 | 27.9 | 28.4 | 27.6 | 27.0 | 25.7 |
| Average night temperature (°C) | 23.4 | 23.3 | 23.4 | 23.7 | 25.5 | 26.5 | 26.8 | 26.7 | 27.4 | 26.4 | 26.1 | 24.9 |
| Absolute minimum temperature (°C) | 21.8 | 22.4 | 22.4 | 20.9 | 23.6 | 24.8 | 25.2 | 24.8 | 25.4 | 24.5 | 24.7 | 22.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.1 | 10.8 | 11.0 | 11.1 | 11.5 | 11.8 | 11.1 | 10.5 | 11.2 | 9.2 | 9.8 | 9.9 |
| Precipitation (mm) | 73 | 21 | 19 | 78 | 62 | 63 | 64 | 117 | 43 | 247 | 67 | 44 |
| Sunny days | 6 | 7 | 14 | 6 | 7 | 8 | 4 | 6 | 8 | 6 | 6 | 8 |
| Rainy days | 25 | 21 | 17 | 24 | 24 | 22 | 27 | 25 | 22 | 25 | 24 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Saint Thomas Island is at