Average annual temperature is 10.5 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: -14.1 °C
Number of sunny days: 64 days
Number of rainy days: 227 days
Number of snow days: 74 days
Look at detailed online map of Nagaiso
* Weather data for Nagaiso 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) | 8.7 | 7.4 | 18.7 | 17.1 | 20.3 | 26.4 | 29.2 | 32.9 | 28.1 | 21.3 | 18.4 | 12.7 |
| Average daytime temperature (°C) | -1.7 | 0.2 | 7.8 | 10.9 | 16.3 | 21.6 | 24.7 | 28.6 | 24.0 | 16.4 | 9.3 | 1.5 |
| Average temperature (°C) | -4.0 | -2.1 | 4.5 | 8.0 | 12.8 | 18.4 | 22.2 | 25.7 | 21.0 | 13.3 | 6.2 | -0.9 |
| Average night temperature (°C) | -6.2 | -4.4 | 1.8 | 5.5 | 9.9 | 15.8 | 20.3 | 23.5 | 18.8 | 10.9 | 3.7 | -3.3 |
| Absolute minimum temperature (°C) | -14.1 | -10.0 | -3.9 | 0.9 | 4.8 | 11.1 | 15.3 | 21.2 | 13.6 | 3.6 | -4.7 | -10.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.7 | 6.0 | 8.4 | 8.2 | 9.7 | 8.9 | 8.3 | 9.3 | 7.4 | 8.0 | 5.3 | 3.5 |
| Precipitation (mm) | 84 | 83 | 83 | 190 | 129 | 159 | 215 | 174 | 217 | 111 | 192 | 117 |
| Sunny days | 1 | 2 | 9 | 4 | 10 | 11 | 2 | 4 | 10 | 5 | 4 | 2 |
| Rainy days | 5 | 9 | 17 | 25 | 21 | 19 | 29 | 27 | 20 | 26 | 18 | 11 |
| Snow days | 25 | 17 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 18 |
The best time to visit Nagaiso during the most sunny months:
The largest precipitation sum in Nagaiso is at