Average annual temperature is 15.8 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -5.9 °C
Number of sunny days: 129 days
Number of rainy days: 232 days
Number of snow days: 4 days
Look at detailed online map of Kuromatsu
* Weather data for Kuromatsu 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) | 17.1 | 15.7 | 21.7 | 24.7 | 27.4 | 30.7 | 33.6 | 34.8 | 32.3 | 25.0 | 25.4 | 20.1 |
| Average daytime temperature (°C) | 8.5 | 9.5 | 15.9 | 18.6 | 22.4 | 25.5 | 30.8 | 31.6 | 29.5 | 21.7 | 17.0 | 12.0 |
| Average temperature (°C) | 4.5 | 5.3 | 10.8 | 13.9 | 17.9 | 21.8 | 26.3 | 27.2 | 24.9 | 16.5 | 12.0 | 7.7 |
| Average night temperature (°C) | 0.7 | 1.5 | 6.2 | 9.6 | 14.0 | 18.6 | 22.7 | 23.9 | 21.2 | 12.3 | 7.9 | 3.7 |
| Absolute minimum temperature (°C) | -5.9 | -2.0 | -0.3 | 3.7 | 7.6 | 12.8 | 17.6 | 21.3 | 17.3 | 7.0 | 1.5 | -2.3 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.1 | 8.7 | 8.3 | 9.2 | 6.9 | 10.3 | 9.9 | 9.9 | 8.6 | 7.3 | 7.1 |
| Precipitation (mm) | 91 | 44 | 122 | 239 | 257 | 455 | 65 | 188 | 91 | 89 | 123 | 64 |
| Sunny days | 5 | 10 | 15 | 13 | 14 | 9 | 9 | 4 | 9 | 16 | 12 | 13 |
| Rainy days | 25 | 15 | 16 | 17 | 17 | 21 | 22 | 27 | 21 | 15 | 18 | 18 |
| Snow days | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kuromatsu is at