Average annual temperature is 14.9 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 106 days
Number of rainy days: 246 days
Number of snow days: 13 days
Look at detailed online map of Ōnomachi
* Weather data for Ōnomachi 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) | 14.8 | 13.4 | 23.0 | 23.2 | 28.2 | 28.7 | 32.4 | 37.6 | 33.9 | 24.4 | 26.9 | 17.2 |
| Average daytime temperature (°C) | 5.8 | 6.2 | 12.7 | 15.8 | 19.9 | 24.4 | 28.7 | 34.0 | 28.9 | 20.0 | 15.5 | 9.1 |
| Average temperature (°C) | 3.1 | 3.5 | 8.1 | 11.5 | 15.8 | 21.1 | 25.5 | 29.9 | 25.3 | 16.4 | 12.0 | 6.2 |
| Average night temperature (°C) | 0.8 | 0.8 | 4.0 | 7.7 | 12.1 | 18.4 | 22.6 | 26.3 | 22.6 | 13.2 | 9.0 | 3.7 |
| Absolute minimum temperature (°C) | -5.4 | -5.4 | -1.7 | 2.2 | 5.4 | 14.1 | 17.0 | 23.6 | 17.8 | 7.7 | 3.4 | -0.7 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 4.7 | 5.5 | 8.1 | 8.2 | 8.5 | 8.4 | 9.6 | 12.0 | 8.0 | 7.9 | 6.3 | 4.4 |
| Precipitation (mm) | 146 | 112 | 103 | 106 | 173 | 227 | 144 | 18 | 201 | 162 | 186 | 240 |
| Sunny days | 3 | 6 | 14 | 12 | 13 | 7 | 12 | 16 | 5 | 7 | 9 | 2 |
| Rainy days | 20 | 19 | 17 | 18 | 18 | 23 | 19 | 15 | 25 | 24 | 21 | 27 |
| Snow days | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Ōnomachi during the most sunny months:
The largest precipitation sum in Ōnomachi is at