Average annual temperature is 16.5 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: -3.7 °C
Number of sunny days: 177 days
Number of rainy days: 184 days
Number of snow days: 4 days
Look at detailed online map of Hiro
* Weather data for Hiro Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.3 | 13.6 | 20.4 | 22.4 | 26.8 | 28.9 | 28.6 | 30.2 | 29.0 | 25.8 | 23.4 | 18.9 |
| Average daytime temperature (°C) | 9.5 | 9.9 | 15.4 | 18.2 | 22.1 | 24.5 | 25.8 | 28.3 | 27.0 | 21.8 | 16.9 | 11.6 |
| Average temperature (°C) | 5.7 | 6.1 | 11.2 | 14.3 | 18.3 | 21.5 | 24.8 | 26.9 | 25.4 | 19.0 | 14.6 | 9.5 |
| Average night temperature (°C) | 2.4 | 2.3 | 7.1 | 10.6 | 14.9 | 18.8 | 23.7 | 25.4 | 23.5 | 16.3 | 12.0 | 7.1 |
| Absolute minimum temperature (°C) | -3.7 | -1.7 | -0.2 | 6.7 | 8.3 | 14.2 | 20.9 | 23.6 | 21.0 | 13.1 | 6.9 | 1.4 |
| 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 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| 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) | 7.4 | 6.8 | 8.6 | 8.0 | 9.0 | 7.9 | 9.4 | 10.1 | 9.6 | 8.6 | 8.0 | 7.1 |
| Precipitation (mm) | 57 | 67 | 95 | 220 | 208 | 237 | 183 | 155 | 76 | 21 | 54 | 64 |
| Sunny days | 18 | 14 | 18 | 18 | 13 | 13 | 14 | 12 | 8 | 22 | 14 | 13 |
| Rainy days | 12 | 14 | 13 | 12 | 18 | 17 | 17 | 19 | 22 | 9 | 16 | 15 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Hiro is at