Average annual temperature is 14.8 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: -8.2 °C
Number of sunny days: 110 days
Number of rainy days: 245 days
Number of snow days: 10 days
Look at detailed online map of Tonami
* Weather data for Tonami 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) | 17.0 | 14.8 | 22.0 | 25.7 | 29.8 | 32.1 | 34.6 | 38.0 | 34.4 | 25.2 | 25.5 | 22.5 |
| Average daytime temperature (°C) | 6.2 | 6.4 | 14.6 | 17.4 | 21.8 | 25.8 | 30.7 | 34.7 | 29.8 | 20.4 | 15.5 | 9.7 |
| Average temperature (°C) | 2.5 | 2.5 | 8.9 | 12.4 | 16.6 | 21.4 | 26.3 | 29.2 | 24.9 | 15.2 | 11.2 | 5.7 |
| Average night temperature (°C) | -0.7 | -1.3 | 4.1 | 7.9 | 12.0 | 17.6 | 22.1 | 24.2 | 21.3 | 11.0 | 7.5 | 2.1 |
| Absolute minimum temperature (°C) | -8.2 | -6.3 | -2.7 | 2.7 | 4.8 | 14.0 | 16.8 | 22.1 | 16.2 | 6.4 | -0.3 | -4.2 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 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) | 5.7 | 6.1 | 8.0 | 8.0 | 9.0 | 8.0 | 9.7 | 11.1 | 8.6 | 8.3 | 6.3 | 4.6 |
| Precipitation (mm) | 214 | 152 | 152 | 157 | 230 | 308 | 183 | 84 | 182 | 183 | 259 | 277 |
| Sunny days | 3 | 9 | 16 | 14 | 15 | 8 | 12 | 4 | 5 | 9 | 8 | 7 |
| Rainy days | 24 | 14 | 15 | 16 | 16 | 22 | 19 | 27 | 25 | 22 | 22 | 23 |
| Snow days | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Tonami during the most sunny months:
The largest precipitation sum in Tonami is at