Average annual temperature is 23.0 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: 15.7 °C
Number of sunny days: 27 days
Number of rainy days: 338 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) | 28.2 | 26.8 | 29.3 | 27.3 | 27.0 | 27.7 | 28.7 | 28.9 | 29.1 | 29.9 | 29.3 | 26.6 |
| Average daytime temperature (°C) | 26.3 | 23.7 | 25.8 | 25.6 | 25.4 | 26.4 | 27.4 | 27.6 | 28.1 | 28.4 | 27.2 | 24.8 |
| Average temperature (°C) | 22.1 | 20.9 | 22.2 | 22.4 | 22.5 | 23.3 | 24.1 | 24.1 | 24.4 | 24.5 | 23.4 | 21.9 |
| Average night temperature (°C) | 19.0 | 18.8 | 19.6 | 19.6 | 20.1 | 20.5 | 21.3 | 21.3 | 21.2 | 21.4 | 20.4 | 19.6 |
| Absolute minimum temperature (°C) | 15.7 | 17.2 | 17.5 | 18.1 | 18.0 | 19.4 | 19.6 | 19.2 | 18.8 | 19.7 | 17.9 | 17.8 |
| 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 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 8.8 | 7.0 | 8.6 | 8.9 | 9.0 | 10.8 | 11.4 | 10.9 | 10.4 | 10.1 | 9.1 | 7.5 |
| Precipitation (mm) | 100 | 501 | 242 | 162 | 154 | 145 | 158 | 117 | 88 | 42 | 267 | 147 |
| Sunny days | 8 | 0 | 5 | 1 | 1 | 3 | 0 | 1 | 1 | 4 | 3 | 0 |
| Rainy days | 23 | 28 | 26 | 29 | 30 | 27 | 31 | 30 | 29 | 27 | 27 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hilo is at