Average annual temperature is 14.0 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 139 days
Number of rainy days: 217 days
Number of snow days: 9 days
Look at detailed online map of Nishiyama
* Weather data for Nishiyama 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) | 12.6 | 14.5 | 20.1 | 24.7 | 28.5 | 29.3 | 33.9 | 34.0 | 31.9 | 23.3 | 23.2 | 17.7 |
| Average daytime temperature (°C) | 6.2 | 7.3 | 14.4 | 17.6 | 21.3 | 24.1 | 30.2 | 29.9 | 28.3 | 19.4 | 14.8 | 9.8 |
| Average temperature (°C) | 2.0 | 3.1 | 8.8 | 12.0 | 16.2 | 20.1 | 25.3 | 25.6 | 23.7 | 14.8 | 10.4 | 5.3 |
| Average night temperature (°C) | -1.3 | -0.2 | 4.2 | 7.6 | 12.1 | 16.8 | 21.4 | 22.7 | 20.3 | 11.3 | 6.9 | 1.8 |
| Absolute minimum temperature (°C) | -10.4 | -4.1 | -1.2 | 3.0 | 6.3 | 11.6 | 18.0 | 21.4 | 16.5 | 6.8 | 0.3 | -4.3 |
| 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 | 14.2 | 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) | 6.8 | 6.0 | 8.3 | 7.8 | 9.3 | 6.4 | 10.1 | 9.4 | 9.6 | 8.7 | 7.5 | 7.1 |
| Precipitation (mm) | 45 | 51 | 104 | 156 | 199 | 373 | 94 | 246 | 54 | 67 | 79 | 43 |
| Sunny days | 8 | 11 | 16 | 14 | 16 | 7 | 8 | 2 | 7 | 16 | 15 | 19 |
| Rainy days | 19 | 12 | 15 | 16 | 15 | 23 | 23 | 29 | 23 | 15 | 15 | 12 |
| Snow days | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nishiyama is at