Average annual temperature is 11.3 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 136 days
Number of rainy days: 196 days
Number of snow days: 33 days
Look at detailed online map of Narai
* Weather data for Narai 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) | 12.8 | 11.4 | 20.2 | 24.5 | 27.0 | 27.9 | 31.0 | 29.9 | 29.4 | 22.9 | 21.4 | 16.5 |
| Average daytime temperature (°C) | 4.0 | 5.4 | 12.3 | 15.5 | 19.2 | 23.2 | 27.8 | 28.4 | 25.9 | 17.0 | 12.8 | 8.0 |
| Average temperature (°C) | -1.1 | 0.1 | 6.2 | 9.7 | 13.8 | 18.5 | 22.7 | 23.3 | 21.0 | 11.3 | 7.3 | 2.5 |
| Average night temperature (°C) | -4.6 | -3.9 | 1.3 | 4.6 | 9.1 | 14.4 | 18.7 | 19.3 | 17.4 | 7.0 | 3.3 | -1.0 |
| Absolute minimum temperature (°C) | -17.2 | -13.7 | -10.5 | -1.8 | 1.4 | 7.3 | 14.9 | 17.3 | 12.0 | -0.3 | -3.6 | -6.6 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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 | 7.5 | 8.6 | 8.8 | 9.1 | 8.2 | 9.9 | 11.0 | 9.3 | 8.6 | 7.3 | 6.9 |
| Precipitation (mm) | 38 | 87 | 138 | 157 | 251 | 341 | 114 | 102 | 160 | 97 | 98 | 96 |
| Sunny days | 14 | 12 | 16 | 15 | 14 | 6 | 5 | 5 | 5 | 14 | 14 | 16 |
| Rainy days | 5 | 6 | 14 | 14 | 17 | 24 | 26 | 26 | 25 | 17 | 12 | 10 |
| Snow days | 12 | 10 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 5 |
The best time to visit Narai during the most sunny months:
The largest precipitation sum in Narai is at