Average annual temperature is 27.2 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: 20.2 °C
Number of sunny days: 59 days
Number of rainy days: 306 days
Look at detailed online map of Ruby
* Weather data for Ruby 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) | 27.1 | 27.4 | 28.5 | 29.0 | 30.3 | 30.9 | 32.2 | 32.7 | 32.6 | 31.7 | 30.2 | 30.4 |
| Average daytime temperature (°C) | 26.5 | 26.4 | 27.4 | 27.8 | 29.3 | 30.2 | 31.1 | 31.1 | 32.1 | 30.1 | 29.4 | 29.0 |
| Average temperature (°C) | 24.9 | 24.7 | 25.1 | 25.6 | 27.2 | 28.3 | 28.9 | 28.9 | 29.8 | 28.2 | 27.6 | 26.9 |
| Average night temperature (°C) | 23.5 | 23.3 | 23.1 | 23.7 | 25.5 | 26.6 | 26.9 | 27.0 | 27.7 | 26.4 | 26.0 | 25.1 |
| Absolute minimum temperature (°C) | 20.9 | 21.9 | 20.2 | 20.4 | 23.0 | 24.6 | 24.8 | 25.8 | 25.5 | 24.6 | 24.4 | 24.0 |
| 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 | 11.6 | 12.0 | 12.5 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| 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) | 10.3 | 10.8 | 11.1 | 11.4 | 11.4 | 11.7 | 11.1 | 10.7 | 11.3 | 9.4 | 9.7 | 10.2 |
| Precipitation (mm) | 65 | 41 | 28 | 70 | 51 | 65 | 56 | 101 | 42 | 203 | 68 | 22 |
| Sunny days | 4 | 1 | 12 | 4 | 4 | 6 | 3 | 2 | 3 | 2 | 6 | 12 |
| Rainy days | 27 | 27 | 19 | 26 | 27 | 24 | 28 | 29 | 27 | 29 | 24 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ruby is at