Average annual temperature is 12.0 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -11.9 °C
Number of sunny days: 152 days
Number of rainy days: 193 days
Number of snow days: 20 days
Look at detailed online map of Tomono
* Weather data for Tomono 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) | 13.5 | 14.6 | 17.8 | 22.9 | 28.6 | 28.5 | 32.1 | 31.6 | 32.1 | 24.1 | 22.8 | 19.2 |
| Average daytime temperature (°C) | 5.7 | 6.8 | 13.0 | 16.8 | 19.7 | 23.1 | 28.7 | 29.1 | 26.8 | 18.0 | 14.2 | 9.5 |
| Average temperature (°C) | 0.1 | 1.2 | 6.9 | 10.3 | 14.0 | 18.5 | 23.6 | 24.2 | 21.7 | 11.9 | 7.9 | 3.2 |
| Average night temperature (°C) | -3.9 | -3.1 | 1.5 | 4.6 | 8.7 | 14.3 | 18.7 | 19.9 | 17.6 | 6.8 | 3.1 | -1.7 |
| Absolute minimum temperature (°C) | -11.9 | -10.0 | -5.2 | -3.8 | 2.2 | 6.9 | 13.5 | 15.3 | 10.0 | 0.8 | -3.4 | -5.2 |
| 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 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 7.7 | 8.8 | 9.4 | 9.5 | 8.3 | 10.3 | 10.8 | 9.3 | 8.9 | 8.0 | 7.5 |
| Precipitation (mm) | 35 | 52 | 93 | 105 | 185 | 264 | 117 | 91 | 125 | 71 | 61 | 42 |
| Sunny days | 12 | 16 | 11 | 14 | 16 | 8 | 7 | 4 | 5 | 20 | 18 | 21 |
| Rainy days | 6 | 6 | 20 | 16 | 15 | 22 | 24 | 27 | 25 | 11 | 12 | 9 |
| Snow days | 13 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Tomono is at