Average annual temperature is 15.0 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -9.1 °C
Number of sunny days: 132 days
Number of rainy days: 226 days
Number of snow days: 7 days
Look at detailed online map of Yamagata
* Weather data for Yamagata 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) | 14.9 | 14.7 | 22.3 | 25.4 | 30.6 | 30.3 | 35.8 | 35.5 | 33.4 | 26.0 | 23.3 | 19.5 |
| Average daytime temperature (°C) | 7.9 | 9.1 | 15.9 | 18.4 | 22.9 | 26.0 | 30.9 | 31.0 | 29.1 | 21.0 | 15.8 | 10.6 |
| Average temperature (°C) | 3.1 | 4.4 | 10.3 | 13.2 | 17.5 | 21.5 | 25.9 | 26.3 | 24.3 | 15.6 | 11.1 | 6.2 |
| Average night temperature (°C) | -0.7 | 0.8 | 5.2 | 8.7 | 13.1 | 17.7 | 21.6 | 23.0 | 20.8 | 11.3 | 7.1 | 2.6 |
| Absolute minimum temperature (°C) | -9.1 | -2.8 | -1.3 | 2.4 | 5.7 | 13.1 | 16.3 | 20.5 | 15.3 | 6.2 | -1.0 | -2.6 |
| 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) | 10.1 | 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) | 7.1 | 7.0 | 8.6 | 8.0 | 8.8 | 7.6 | 9.5 | 9.4 | 9.3 | 8.5 | 7.6 | 6.5 |
| Precipitation (mm) | 56 | 71 | 139 | 318 | 295 | 383 | 185 | 333 | 151 | 60 | 124 | 84 |
| Sunny days | 12 | 14 | 14 | 12 | 13 | 10 | 10 | 1 | 7 | 16 | 13 | 10 |
| Rainy days | 15 | 14 | 17 | 18 | 18 | 20 | 21 | 30 | 23 | 15 | 17 | 18 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Yamagata is at