Average annual temperature is 11.9 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -11.4 °C
Number of sunny days: 170 days
Number of rainy days: 182 days
Number of snow days: 13 days
Look at detailed online map of Big Island
* Weather data for Big 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) | 16.5 | 20.1 | 19.5 | 26.4 | 29.4 | 31.9 | 31.8 | 31.4 | 32.0 | 28.8 | 20.0 | 17.2 |
| Average daytime temperature (°C) | 5.5 | 10.0 | 9.8 | 17.3 | 21.5 | 25.7 | 27.9 | 26.6 | 24.4 | 18.0 | 11.2 | 8.7 |
| Average temperature (°C) | 1.9 | 3.2 | 4.1 | 10.9 | 15.3 | 19.9 | 22.9 | 21.2 | 19.0 | 13.2 | 5.7 | 4.5 |
| Average night temperature (°C) | -1.2 | -1.5 | -0.2 | 5.3 | 9.5 | 14.3 | 18.3 | 16.4 | 14.2 | 9.0 | 1.6 | 1.6 |
| Absolute minimum temperature (°C) | -11.4 | -10.6 | -7.8 | -1.2 | 2.5 | 8.6 | 14.1 | 9.9 | 7.9 | -3.0 | -7.8 | -4.7 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.1 | 7.0 | 7.0 | 8.8 | 10.3 | 10.6 | 12.0 | 10.7 | 9.3 | 7.1 | 7.1 | 4.0 |
| Precipitation (mm) | 124 | 63 | 126 | 82 | 87 | 131 | 129 | 107 | 25 | 63 | 30 | 63 |
| Sunny days | 7 | 18 | 12 | 13 | 19 | 15 | 7 | 14 | 17 | 14 | 21 | 13 |
| Rainy days | 18 | 10 | 14 | 17 | 12 | 15 | 24 | 17 | 13 | 16 | 8 | 18 |
| Snow days | 6 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
The best time to visit Big Island during the most sunny months:
The largest precipitation sum in Big Island is at