Average annual temperature is 11.4 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 77 days
Number of rainy days: 245 days
Number of snow days: 43 days
Look at detailed online map of Yamagata-ken
* Weather data for Yamagata-ken 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) | 10.4 | 8.5 | 17.2 | 22.4 | 28.9 | 27.2 | 32.0 | 34.9 | 33.9 | 22.2 | 21.9 | 13.4 |
| Average daytime temperature (°C) | 1.3 | 2.0 | 9.7 | 14.9 | 18.9 | 23.1 | 27.4 | 31.0 | 26.1 | 17.1 | 11.5 | 5.3 |
| Average temperature (°C) | -1.4 | -0.7 | 4.2 | 8.9 | 13.6 | 18.8 | 23.2 | 26.0 | 21.8 | 12.5 | 7.7 | 2.0 |
| Average night temperature (°C) | -3.6 | -3.0 | 0.2 | 4.4 | 9.0 | 15.3 | 19.4 | 22.4 | 18.9 | 9.3 | 4.9 | -0.7 |
| Absolute minimum temperature (°C) | -10.4 | -6.9 | -3.6 | -1.5 | 0.8 | 9.7 | 13.8 | 19.6 | 11.2 | 5.5 | -2.1 | -4.9 |
| 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) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 3.0 | 4.2 | 8.0 | 8.3 | 8.5 | 8.0 | 9.0 | 11.8 | 7.6 | 7.9 | 5.0 | 3.1 |
| Precipitation (mm) | 150 | 146 | 77 | 108 | 185 | 186 | 189 | 95 | 209 | 109 | 222 | 235 |
| Sunny days | 0 | 2 | 18 | 12 | 13 | 3 | 2 | 6 | 6 | 5 | 7 | 3 |
| Rainy days | 13 | 12 | 11 | 17 | 18 | 27 | 29 | 25 | 24 | 26 | 21 | 22 |
| Snow days | 18 | 14 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The best time to visit Yamagata-ken during the most sunny months:
The largest precipitation sum in Yamagata-ken is at