Average annual temperature is 13.6 °C
Absolute maximum temperature: 31.8 °C
Absolute minimum temperature: -9.2 °C
Number of sunny days: 152 days
Number of rainy days: 210 days
Number of snow days: 3 days
Look at detailed online map of Nanatsuyama
* Weather data for Nanatsuyama 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) | 18.2 | 17.0 | 23.1 | 25.2 | 29.4 | 30.6 | 31.6 | 31.8 | 30.8 | 25.1 | 23.5 | 19.0 |
| Average daytime temperature (°C) | 8.2 | 10.3 | 15.2 | 17.8 | 20.9 | 24.0 | 28.2 | 26.7 | 27.1 | 20.2 | 15.9 | 10.4 |
| Average temperature (°C) | 2.8 | 4.8 | 9.2 | 12.1 | 16.0 | 19.5 | 23.7 | 23.2 | 22.1 | 13.9 | 10.0 | 5.2 |
| Average night temperature (°C) | -1.0 | 0.7 | 4.2 | 7.3 | 11.9 | 16.0 | 20.2 | 20.7 | 18.5 | 9.0 | 5.6 | 1.2 |
| Absolute minimum temperature (°C) | -9.2 | -4.1 | -2.8 | -0.9 | 5.4 | 11.5 | 18.0 | 18.4 | 14.9 | 3.7 | -0.9 | -4.8 |
| 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) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.3 | 6.9 | 7.7 | 7.8 | 8.3 | 6.1 | 9.5 | 7.7 | 9.2 | 8.3 | 8.3 | 6.4 |
| Precipitation (mm) | 79 | 141 | 168 | 171 | 184 | 390 | 161 | 592 | 85 | 80 | 35 | 82 |
| Sunny days | 20 | 17 | 16 | 16 | 14 | 7 | 2 | 1 | 4 | 21 | 19 | 15 |
| Rainy days | 11 | 11 | 15 | 14 | 17 | 23 | 29 | 30 | 26 | 10 | 11 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Nanatsuyama is at