Average annual temperature is 17.1 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -2.1 °C
Number of sunny days: 155 days
Number of rainy days: 208 days
Number of snow days: 2 days
Look at detailed online map of Kainan
* Weather data for Kainan 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) | 17.5 | 16.0 | 20.1 | 22.9 | 26.0 | 29.6 | 32.7 | 34.4 | 32.7 | 25.4 | 25.5 | 20.9 |
| Average daytime temperature (°C) | 9.4 | 10.0 | 15.6 | 18.4 | 22.1 | 25.1 | 30.1 | 31.4 | 29.5 | 22.3 | 17.5 | 12.6 |
| Average temperature (°C) | 6.6 | 6.9 | 11.8 | 14.9 | 18.7 | 22.5 | 27.0 | 28.1 | 26.1 | 18.4 | 14.0 | 9.6 |
| Average night temperature (°C) | 3.9 | 3.9 | 8.1 | 11.6 | 15.7 | 19.9 | 24.2 | 25.4 | 23.2 | 15.0 | 10.7 | 6.5 |
| Absolute minimum temperature (°C) | -2.1 | 0.7 | 2.3 | 6.4 | 10.7 | 15.3 | 19.5 | 23.8 | 19.8 | 10.2 | 5.0 | 2.0 |
| 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) | 7.2 | 7.1 | 8.8 | 8.3 | 9.3 | 6.8 | 10.4 | 9.9 | 10.0 | 8.5 | 7.3 | 7.2 |
| Precipitation (mm) | 77 | 48 | 106 | 222 | 231 | 403 | 65 | 186 | 94 | 81 | 123 | 43 |
| Sunny days | 13 | 12 | 17 | 15 | 15 | 11 | 14 | 3 | 8 | 14 | 15 | 18 |
| Rainy days | 17 | 15 | 14 | 15 | 16 | 19 | 17 | 28 | 22 | 17 | 15 | 13 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kainan is at