Average annual temperature is 16.9 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -3.4 °C
Number of sunny days: 174 days
Number of rainy days: 191 days
Look at detailed online map of Nankoku
* Weather data for Nankoku 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) | 19.0 | 17.0 | 23.2 | 22.0 | 25.0 | 29.5 | 31.7 | 31.9 | 34.2 | 28.5 | 25.0 | 20.9 |
| Average daytime temperature (°C) | 11.2 | 11.8 | 16.9 | 19.4 | 22.4 | 25.1 | 29.2 | 29.7 | 29.2 | 23.8 | 18.4 | 13.3 |
| Average temperature (°C) | 6.5 | 7.7 | 12.4 | 15.4 | 18.8 | 22.2 | 26.0 | 26.6 | 25.6 | 18.6 | 13.5 | 8.5 |
| Average night temperature (°C) | 2.9 | 4.2 | 8.2 | 11.2 | 15.6 | 19.5 | 23.1 | 24.0 | 22.5 | 14.0 | 9.7 | 4.7 |
| Absolute minimum temperature (°C) | -3.4 | 0.1 | 1.1 | 5.4 | 9.7 | 15.1 | 19.3 | 22.1 | 18.7 | 9.1 | 2.9 | -1.9 |
| 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 | 14.3 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| 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) | 7.7 | 7.2 | 8.3 | 8.0 | 8.6 | 6.3 | 9.9 | 8.8 | 9.6 | 8.9 | 7.9 | 7.5 |
| Precipitation (mm) | 85 | 50 | 142 | 297 | 294 | 439 | 131 | 568 | 137 | 26 | 144 | 56 |
| Sunny days | 19 | 16 | 19 | 18 | 15 | 9 | 5 | 3 | 7 | 23 | 20 | 20 |
| Rainy days | 12 | 12 | 12 | 12 | 16 | 21 | 26 | 28 | 23 | 8 | 10 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nankoku is at