Average annual temperature is 15.1 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -7.0 °C
Number of sunny days: 104 days
Number of rainy days: 253 days
Number of snow days: 8 days
Look at detailed online map of Inoyamamachi
* Weather data for Inoyamamachi 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) | 15.6 | 12.5 | 20.9 | 21.6 | 27.3 | 29.8 | 33.2 | 36.6 | 32.2 | 24.4 | 25.1 | 20.3 |
| Average daytime temperature (°C) | 6.0 | 6.6 | 13.3 | 15.8 | 20.3 | 24.5 | 29.5 | 33.5 | 28.4 | 20.0 | 15.2 | 9.7 |
| Average temperature (°C) | 3.2 | 3.9 | 8.9 | 12.0 | 16.3 | 21.1 | 26.0 | 29.1 | 24.9 | 16.5 | 12.2 | 6.9 |
| Average night temperature (°C) | 0.3 | 0.9 | 5.1 | 8.5 | 12.7 | 18.3 | 22.9 | 25.3 | 22.2 | 13.3 | 9.4 | 4.1 |
| Absolute minimum temperature (°C) | -7.0 | -3.1 | 0.3 | 3.8 | 6.3 | 15.5 | 19.0 | 23.0 | 18.2 | 7.5 | 2.2 | -3.1 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.2 | 5.5 | 8.1 | 8.0 | 8.7 | 8.6 | 9.6 | 11.1 | 7.9 | 8.5 | 6.2 | 4.3 |
| Precipitation (mm) | 180 | 98 | 109 | 160 | 207 | 244 | 170 | 97 | 215 | 138 | 209 | 244 |
| Sunny days | 2 | 6 | 14 | 15 | 14 | 9 | 12 | 10 | 2 | 9 | 5 | 6 |
| Rainy days | 27 | 17 | 17 | 15 | 17 | 21 | 19 | 21 | 28 | 22 | 25 | 24 |
| Snow days | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Inoyamamachi during the most sunny months:
The largest precipitation sum in Inoyamamachi is at