Average annual temperature is 15.2 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -10.8 °C
Number of sunny days: 117 days
Number of rainy days: 234 days
Number of snow days: 14 days
Look at detailed online map of Nii
* Weather data for Nii 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) | 15.1 | 15.3 | 23.0 | 26.5 | 30.0 | 31.2 | 34.2 | 34.8 | 32.8 | 26.3 | 25.0 | 19.2 |
| Average daytime temperature (°C) | 7.4 | 7.9 | 15.2 | 17.7 | 22.2 | 26.3 | 30.9 | 32.2 | 29.1 | 21.1 | 16.3 | 11.2 |
| Average temperature (°C) | 3.0 | 3.9 | 10.0 | 13.0 | 17.4 | 21.7 | 26.4 | 27.7 | 24.8 | 16.3 | 11.5 | 6.5 |
| Average night temperature (°C) | -0.6 | 0.3 | 6.2 | 9.3 | 13.7 | 18.3 | 23.0 | 24.6 | 21.7 | 12.8 | 7.8 | 3.0 |
| Absolute minimum temperature (°C) | -10.8 | -9.1 | 0.4 | 3.9 | 8.7 | 12.3 | 19.8 | 22.9 | 17.0 | 8.5 | 1.6 | -3.0 |
| 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 | 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) | 6.5 | 5.8 | 8.3 | 7.4 | 8.9 | 7.1 | 8.9 | 10.0 | 8.5 | 8.8 | 7.2 | 6.6 |
| Precipitation (mm) | 95 | 66 | 125 | 337 | 293 | 273 | 147 | 233 | 109 | 63 | 113 | 57 |
| Sunny days | 7 | 7 | 17 | 15 | 12 | 5 | 9 | 2 | 6 | 13 | 10 | 14 |
| Rainy days | 18 | 15 | 14 | 15 | 19 | 25 | 22 | 29 | 24 | 18 | 20 | 15 |
| Snow days | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Nii during the most sunny months:
The largest precipitation sum in Nii is at