Average annual temperature is 11.4 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -14.4 °C
Number of sunny days: 76 days
Number of rainy days: 240 days
Number of snow days: 49 days
Look at detailed online map of Onarichō
* Weather data for Onarichō 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) | 10.6 | 8.7 | 21.3 | 21.4 | 26.4 | 28.4 | 31.8 | 35.7 | 32.1 | 22.3 | 23.4 | 13.8 |
| Average daytime temperature (°C) | 1.0 | 2.0 | 12.0 | 14.7 | 19.2 | 24.1 | 27.2 | 32.3 | 26.7 | 18.0 | 11.7 | 3.9 |
| Average temperature (°C) | -2.7 | -1.7 | 5.2 | 9.4 | 13.4 | 19.4 | 23.4 | 27.1 | 21.6 | 12.6 | 7.7 | 0.0 |
| Average night temperature (°C) | -6.5 | -6.0 | -0.2 | 5.1 | 8.5 | 15.4 | 20.1 | 22.8 | 18.0 | 8.3 | 4.4 | -3.8 |
| Absolute minimum temperature (°C) | -14.0 | -14.4 | -7.3 | -1.3 | 1.5 | 8.7 | 14.9 | 20.2 | 9.3 | 2.8 | -5.9 | -13.5 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 5.4 | 5.9 | 8.4 | 8.7 | 9.5 | 8.0 | 8.5 | 11.5 | 7.8 | 8.3 | 5.2 | 4.4 |
| Precipitation (mm) | 73 | 66 | 94 | 139 | 166 | 171 | 322 | 73 | 207 | 162 | 253 | 105 |
| Sunny days | 3 | 2 | 13 | 8 | 10 | 7 | 4 | 6 | 4 | 10 | 6 | 3 |
| Rainy days | 9 | 10 | 18 | 22 | 21 | 23 | 27 | 25 | 26 | 21 | 21 | 17 |
| Snow days | 19 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 11 |
The best time to visit Onarichō during the most sunny months:
The largest precipitation sum in Onarichō is at