Average annual temperature is 15.7 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 109 days
Number of rainy days: 246 days
Number of snow days: 10 days
Look at detailed online map of Ōtsumachi
* Weather data for Ōtsumachi 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) | 16.4 | 12.6 | 20.4 | 21.8 | 27.6 | 29.9 | 34.0 | 37.2 | 32.6 | 25.1 | 25.5 | 19.3 |
| Average daytime temperature (°C) | 6.6 | 7.1 | 13.3 | 16.0 | 20.6 | 24.7 | 29.7 | 34.1 | 28.6 | 20.6 | 15.7 | 10.1 |
| Average temperature (°C) | 4.0 | 4.6 | 9.3 | 12.4 | 16.8 | 21.5 | 26.4 | 29.9 | 25.4 | 17.3 | 12.9 | 7.5 |
| Average night temperature (°C) | 1.4 | 2.0 | 5.7 | 9.1 | 13.5 | 19.0 | 23.6 | 26.6 | 22.9 | 14.5 | 10.2 | 5.0 |
| Absolute minimum temperature (°C) | -5.7 | -2.0 | 0.5 | 4.1 | 6.9 | 16.1 | 20.0 | 23.5 | 18.9 | 8.9 | 3.0 | -1.0 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 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) | 5.5 | 5.7 | 8.4 | 8.1 | 8.8 | 8.7 | 9.6 | 11.2 | 8.0 | 8.6 | 6.4 | 4.6 |
| Precipitation (mm) | 136 | 96 | 100 | 166 | 200 | 245 | 176 | 115 | 210 | 114 | 181 | 219 |
| Sunny days | 3 | 7 | 15 | 15 | 15 | 9 | 12 | 11 | 4 | 9 | 5 | 4 |
| Rainy days | 25 | 15 | 16 | 15 | 16 | 21 | 19 | 20 | 26 | 22 | 25 | 26 |
| Snow days | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Ōtsumachi during the most sunny months:
The largest precipitation sum in Ōtsumachi is at