Average annual temperature is 14.8 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -6.7 °C
Number of sunny days: 142 days
Number of rainy days: 218 days
Number of snow days: 5 days
Look at detailed online map of Hongō
* Weather data for Hongō 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) | 14.2 | 14.5 | 22.1 | 26.5 | 29.2 | 29.7 | 34.9 | 35.8 | 33.6 | 25.9 | 24.5 | 17.9 |
| Average daytime temperature (°C) | 7.8 | 9.3 | 16.0 | 18.6 | 22.7 | 25.8 | 30.8 | 31.6 | 29.3 | 21.2 | 16.0 | 10.6 |
| Average temperature (°C) | 2.4 | 3.9 | 10.1 | 13.1 | 17.4 | 21.2 | 25.8 | 26.6 | 24.5 | 15.5 | 10.7 | 5.5 |
| Average night temperature (°C) | -1.7 | -0.3 | 5.0 | 8.2 | 12.8 | 17.2 | 21.3 | 22.6 | 20.7 | 11.2 | 6.7 | 1.5 |
| Absolute minimum temperature (°C) | -6.7 | -4.9 | -2.5 | 1.5 | 5.6 | 12.4 | 17.5 | 20.6 | 15.8 | 7.2 | -1.2 | -3.9 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 7.5 | 8.6 | 8.1 | 8.9 | 7.7 | 9.8 | 10.3 | 9.5 | 8.5 | 7.7 | 7.0 |
| Precipitation (mm) | 40 | 66 | 153 | 210 | 271 | 442 | 225 | 212 | 196 | 78 | 146 | 85 |
| Sunny days | 12 | 15 | 16 | 13 | 15 | 7 | 10 | 4 | 9 | 16 | 14 | 11 |
| Rainy days | 15 | 13 | 15 | 17 | 16 | 23 | 21 | 27 | 21 | 15 | 16 | 19 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Hongō is at