Average annual temperature is 16.6 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: -5.9 °C
Number of sunny days: 169 days
Number of rainy days: 194 days
Number of snow days: 2 days
Look at detailed online map of Bonsaichō
* Weather data for Bonsaichō 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) | 14.1 | 19.3 | 25.1 | 28.1 | 32.4 | 32.6 | 40.1 | 39.2 | 35.6 | 28.0 | 26.4 | 20.0 |
| Average daytime temperature (°C) | 9.5 | 11.8 | 17.8 | 21.5 | 23.8 | 27.3 | 34.3 | 34.1 | 30.9 | 23.1 | 18.3 | 13.4 |
| Average temperature (°C) | 3.9 | 5.8 | 12.0 | 15.5 | 18.1 | 22.6 | 28.5 | 28.8 | 26.0 | 17.6 | 12.6 | 7.4 |
| Average night temperature (°C) | -0.5 | 1.0 | 7.0 | 10.4 | 13.4 | 18.9 | 23.8 | 24.9 | 22.7 | 13.0 | 8.1 | 2.6 |
| Absolute minimum temperature (°C) | -5.9 | -5.0 | 0.2 | 3.5 | 7.2 | 12.0 | 21.0 | 23.1 | 16.5 | 7.8 | 2.7 | -3.2 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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) | 7.4 | 7.9 | 7.9 | 8.7 | 9.0 | 7.5 | 10.2 | 11.0 | 8.9 | 8.4 | 7.2 | 7.7 |
| Precipitation (mm) | 21 | 40 | 110 | 79 | 174 | 312 | 38 | 144 | 225 | 99 | 58 | 30 |
| Sunny days | 22 | 20 | 15 | 16 | 14 | 5 | 12 | 7 | 7 | 12 | 18 | 21 |
| Rainy days | 8 | 7 | 16 | 14 | 17 | 25 | 19 | 24 | 23 | 19 | 12 | 10 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bonsaichō during the most sunny months:
The largest precipitation sum in Bonsaichō is at