Average annual temperature is 15.8 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -4.1 °C
Number of sunny days: 110 days
Number of rainy days: 250 days
Number of snow days: 5 days
Look at detailed online map of Ōmorichō
* Weather data for Ōmorichō 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) | 15.0 | 13.5 | 22.7 | 22.8 | 25.7 | 29.9 | 33.5 | 36.5 | 31.2 | 24.3 | 25.3 | 22.0 |
| Average daytime temperature (°C) | 7.9 | 9.1 | 15.1 | 17.3 | 21.5 | 25.1 | 29.8 | 31.9 | 27.7 | 20.7 | 16.2 | 11.1 |
| Average temperature (°C) | 5.4 | 5.8 | 10.2 | 13.4 | 17.4 | 21.5 | 26.1 | 27.8 | 24.3 | 17.1 | 12.6 | 7.8 |
| Average night temperature (°C) | 3.2 | 2.8 | 6.2 | 10.0 | 14.1 | 18.6 | 23.1 | 24.9 | 21.8 | 13.9 | 9.2 | 5.2 |
| Absolute minimum temperature (°C) | -4.1 | -1.0 | -0.4 | 5.5 | 6.4 | 14.3 | 19.3 | 22.3 | 18.1 | 8.5 | 1.9 | -0.5 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.5 | 5.8 | 8.1 | 7.9 | 8.7 | 8.0 | 9.4 | 10.0 | 8.3 | 8.3 | 6.6 | 5.4 |
| Precipitation (mm) | 108 | 122 | 91 | 194 | 267 | 162 | 277 | 142 | 158 | 57 | 116 | 151 |
| Sunny days | 6 | 5 | 16 | 16 | 12 | 9 | 5 | 2 | 5 | 15 | 11 | 8 |
| Rainy days | 23 | 22 | 15 | 14 | 19 | 21 | 26 | 29 | 25 | 16 | 19 | 21 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Ōmorichō during the most sunny months:
The largest precipitation sum in Ōmorichō is at