Average annual temperature is 14.5 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -8.3 °C
Number of sunny days: 142 days
Number of rainy days: 214 days
Number of snow days: 9 days
Look at detailed online map of Naihara
* Weather data for Naihara 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) | 15.8 | 16.0 | 21.3 | 24.3 | 29.8 | 29.6 | 33.7 | 32.1 | 31.9 | 24.8 | 23.3 | 18.1 |
| Average daytime temperature (°C) | 6.8 | 8.4 | 15.3 | 17.6 | 21.4 | 24.8 | 29.7 | 28.7 | 27.9 | 19.9 | 15.3 | 10.3 |
| Average temperature (°C) | 2.9 | 4.4 | 10.0 | 12.7 | 16.6 | 20.7 | 24.9 | 24.9 | 23.4 | 15.3 | 10.9 | 6.3 |
| Average night temperature (°C) | 0.1 | 1.0 | 6.1 | 8.5 | 12.7 | 17.6 | 21.4 | 22.5 | 20.4 | 12.1 | 7.5 | 3.3 |
| Absolute minimum temperature (°C) | -8.3 | -4.4 | -1.1 | 4.1 | 7.9 | 13.0 | 19.4 | 20.3 | 16.3 | 7.1 | 2.1 | -3.4 |
| 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) | 6.9 | 6.9 | 8.2 | 8.0 | 8.2 | 6.8 | 9.7 | 8.2 | 9.2 | 8.6 | 7.3 | 6.7 |
| Precipitation (mm) | 79 | 57 | 161 | 302 | 244 | 518 | 85 | 417 | 71 | 97 | 120 | 66 |
| Sunny days | 16 | 15 | 17 | 11 | 11 | 10 | 7 | 0 | 8 | 15 | 15 | 17 |
| Rainy days | 10 | 11 | 14 | 19 | 20 | 20 | 24 | 31 | 22 | 16 | 15 | 12 |
| Snow days | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Naihara is at