Average annual temperature is 15.7 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: -5.0 °C
Number of sunny days: 172 days
Number of rainy days: 190 days
Number of snow days: 3 days
Look at detailed online map of Omatachō
* Weather data for Omatachō 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) | 12.9 | 16.8 | 24.0 | 28.9 | 32.0 | 31.1 | 39.3 | 37.2 | 33.1 | 26.3 | 26.2 | 19.2 |
| Average daytime temperature (°C) | 8.2 | 10.2 | 17.1 | 21.1 | 23.5 | 26.4 | 32.8 | 32.8 | 29.6 | 21.8 | 17.2 | 12.0 |
| Average temperature (°C) | 3.1 | 4.8 | 11.6 | 14.8 | 17.7 | 22.0 | 27.2 | 27.6 | 25.1 | 16.5 | 11.7 | 6.3 |
| Average night temperature (°C) | -0.7 | 0.5 | 6.7 | 9.3 | 13.1 | 18.3 | 22.6 | 24.0 | 21.7 | 12.0 | 7.5 | 2.2 |
| Absolute minimum temperature (°C) | -5.0 | -4.4 | 0.8 | 4.2 | 7.4 | 13.1 | 20.3 | 21.9 | 13.9 | 7.9 | -0.7 | -3.6 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 8.3 | 8.2 | 9.2 | 9.2 | 7.7 | 10.2 | 10.4 | 8.7 | 8.7 | 7.8 | 7.7 |
| Precipitation (mm) | 14 | 37 | 91 | 57 | 177 | 291 | 115 | 196 | 231 | 95 | 63 | 22 |
| Sunny days | 19 | 17 | 18 | 17 | 14 | 5 | 8 | 6 | 7 | 16 | 22 | 23 |
| Rainy days | 10 | 10 | 13 | 13 | 17 | 25 | 23 | 25 | 23 | 15 | 8 | 8 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Omatachō is at