Average annual temperature is 17.0 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 146 days
Number of rainy days: 215 days
Number of snow days: 4 days
Look at detailed online map of Tōon
* Weather data for Tōon 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) | 18.8 | 17.5 | 24.1 | 25.4 | 29.3 | 32.4 | 34.3 | 35.6 | 34.3 | 27.0 | 27.0 | 23.1 |
| Average daytime temperature (°C) | 10.1 | 11.3 | 16.9 | 19.4 | 23.3 | 26.1 | 31.1 | 31.9 | 30.2 | 23.0 | 18.2 | 12.6 |
| Average temperature (°C) | 6.6 | 7.1 | 11.9 | 15.0 | 19.0 | 22.6 | 27.1 | 27.9 | 26.0 | 18.1 | 13.5 | 8.7 |
| Average night temperature (°C) | 3.5 | 3.0 | 7.1 | 10.5 | 14.9 | 19.3 | 23.4 | 24.8 | 22.5 | 14.1 | 9.3 | 4.9 |
| Absolute minimum temperature (°C) | -2.9 | -1.0 | 1.2 | 5.3 | 7.8 | 13.9 | 17.2 | 22.1 | 19.8 | 9.8 | 3.5 | -0.8 |
| 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 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| 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) | 6.9 | 7.2 | 8.6 | 8.2 | 9.2 | 7.0 | 9.8 | 10.1 | 9.4 | 8.8 | 8.0 | 7.0 |
| Precipitation (mm) | 91 | 62 | 101 | 239 | 245 | 286 | 154 | 206 | 95 | 28 | 120 | 75 |
| Sunny days | 12 | 12 | 18 | 19 | 16 | 11 | 8 | 1 | 6 | 18 | 13 | 12 |
| Rainy days | 17 | 16 | 13 | 11 | 15 | 19 | 23 | 30 | 24 | 13 | 17 | 17 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Tōon is at