Average annual temperature is 19.5 °C
Absolute maximum temperature: 41.3 °C
Absolute minimum temperature: -2.5 °C
Number of sunny days: 202 days
Number of rainy days: 163 days
Look at detailed online map of Hilo
* Weather data for Hilo 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) | 24.3 | 27.6 | 28.2 | 30.0 | 33.4 | 39.3 | 38.1 | 41.3 | 36.4 | 33.2 | 28.4 | 24.0 |
| Average daytime temperature (°C) | 16.3 | 18.5 | 21.7 | 23.9 | 29.6 | 34.4 | 34.4 | 37.4 | 32.2 | 26.0 | 18.9 | 16.4 |
| Average temperature (°C) | 10.9 | 12.1 | 14.9 | 17.2 | 23.1 | 27.3 | 28.4 | 30.5 | 25.6 | 19.9 | 13.2 | 10.4 |
| Average night temperature (°C) | 7.2 | 7.7 | 10.1 | 12.3 | 17.3 | 21.7 | 23.8 | 25.1 | 20.6 | 15.2 | 9.0 | 5.8 |
| Absolute minimum temperature (°C) | -2.1 | -2.5 | -2.4 | 7.5 | 9.5 | 19.3 | 20.0 | 19.4 | 16.6 | 3.8 | -0.1 | -0.9 |
| 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) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 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) | 6.3 | 6.8 | 8.3 | 8.3 | 10.7 | 11.9 | 11.4 | 11.9 | 10.6 | 8.3 | 6.8 | 7.6 |
| Precipitation (mm) | 148 | 88 | 107 | 173 | 94 | 55 | 123 | 44 | 47 | 59 | 37 | 55 |
| Sunny days | 16 | 12 | 15 | 11 | 12 | 13 | 15 | 24 | 16 | 22 | 23 | 23 |
| Rainy days | 15 | 16 | 16 | 19 | 19 | 17 | 16 | 7 | 14 | 9 | 7 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hilo during the most sunny months:
The largest precipitation sum in Hilo is at