Average annual temperature is 15.8 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -6.3 °C
Number of sunny days: 159 days
Number of rainy days: 203 days
Number of snow days: 3 days
Look at detailed online map of Kōnan
* Weather data for Kōnan 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) | 15.7 | 15.7 | 22.6 | 26.5 | 29.5 | 30.3 | 35.4 | 36.3 | 33.6 | 26.1 | 25.3 | 19.5 |
| Average daytime temperature (°C) | 9.3 | 10.4 | 17.0 | 19.6 | 23.4 | 26.3 | 31.4 | 32.2 | 29.9 | 22.0 | 17.2 | 12.1 |
| Average temperature (°C) | 3.5 | 5.0 | 10.7 | 14.1 | 18.2 | 22.3 | 26.8 | 27.9 | 25.6 | 16.4 | 11.8 | 6.6 |
| Average night temperature (°C) | -1.3 | 0.8 | 5.2 | 9.1 | 13.5 | 18.6 | 22.9 | 24.6 | 22.1 | 11.9 | 7.5 | 2.3 |
| Absolute minimum temperature (°C) | -6.3 | -5.1 | -1.1 | 3.0 | 6.3 | 12.2 | 17.5 | 22.5 | 17.8 | 7.0 | 0.7 | -3.3 |
| 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 | 14.3 | 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) | 7.7 | 7.5 | 8.5 | 8.2 | 8.9 | 7.5 | 10.2 | 10.2 | 9.5 | 8.5 | 8.0 | 7.2 |
| Precipitation (mm) | 33 | 66 | 132 | 169 | 250 | 399 | 209 | 234 | 173 | 83 | 100 | 75 |
| Sunny days | 17 | 16 | 15 | 14 | 15 | 9 | 11 | 4 | 10 | 18 | 16 | 14 |
| Rainy days | 12 | 12 | 16 | 16 | 16 | 21 | 20 | 27 | 20 | 13 | 14 | 16 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Kōnan is at