Average annual temperature is 16.8 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: -5.2 °C
Number of sunny days: 172 days
Number of rainy days: 191 days
Number of snow days: 2 days
Look at detailed online map of Niiza-shi
* Weather data for Niiza-shi 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) | 13.5 | 19.3 | 23.8 | 26.3 | 30.9 | 32.6 | 39.7 | 37.9 | 36.7 | 27.2 | 25.7 | 19.5 |
| Average daytime temperature (°C) | 9.0 | 11.3 | 17.5 | 20.8 | 23.2 | 26.9 | 34.2 | 33.9 | 30.7 | 22.8 | 18.1 | 13.0 |
| Average temperature (°C) | 4.1 | 6.0 | 12.2 | 15.5 | 18.1 | 22.7 | 28.6 | 28.9 | 26.2 | 17.9 | 12.9 | 7.8 |
| Average night temperature (°C) | 0.1 | 1.5 | 7.6 | 10.9 | 14.0 | 19.3 | 24.3 | 25.4 | 23.2 | 13.6 | 8.6 | 3.4 |
| Absolute minimum temperature (°C) | -5.2 | -3.9 | 1.2 | 4.2 | 7.8 | 14.0 | 20.9 | 23.7 | 17.0 | 9.0 | 3.1 | -2.1 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 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) | 7.4 | 7.7 | 7.5 | 8.6 | 8.6 | 7.2 | 10.4 | 11.0 | 8.8 | 8.5 | 7.1 | 7.8 |
| Precipitation (mm) | 27 | 36 | 121 | 88 | 165 | 320 | 43 | 102 | 238 | 87 | 68 | 33 |
| Sunny days | 20 | 18 | 16 | 14 | 14 | 6 | 12 | 6 | 8 | 16 | 19 | 23 |
| Rainy days | 10 | 9 | 15 | 16 | 17 | 24 | 19 | 25 | 22 | 15 | 11 | 8 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Niiza-shi during the most sunny months:
The largest precipitation sum in Niiza-shi is at