Average annual temperature is 19.6 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: 1.0 °C
Number of sunny days: 69 days
Number of rainy days: 295 days
Number of snow days: 1 day
Look at detailed online map of Koseda
* Weather data for Koseda 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) | 20.6 | 20.4 | 23.2 | 25.0 | 30.1 | 30.9 | 32.7 | 31.8 | 31.4 | 28.4 | 26.9 | 23.7 |
| Average daytime temperature (°C) | 13.4 | 15.6 | 18.3 | 20.4 | 23.8 | 26.7 | 30.4 | 29.6 | 29.5 | 23.5 | 20.0 | 15.8 |
| Average temperature (°C) | 11.0 | 12.6 | 15.1 | 17.7 | 20.9 | 24.4 | 27.9 | 27.3 | 26.7 | 20.7 | 17.1 | 13.3 |
| Average night temperature (°C) | 8.7 | 10.0 | 12.1 | 15.2 | 18.4 | 22.4 | 26.0 | 25.5 | 24.6 | 18.4 | 14.7 | 11.1 |
| Absolute minimum temperature (°C) | 1.0 | 5.1 | 4.2 | 7.9 | 13.4 | 17.9 | 24.3 | 24.3 | 22.6 | 14.6 | 8.9 | 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 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.0 | 6.6 | 7.3 | 7.7 | 9.4 | 6.5 | 10.1 | 9.0 | 11.0 | 8.2 | 8.1 | 6.2 |
| Precipitation (mm) | 255 | 324 | 347 | 574 | 304 | 756 | 297 | 872 | 127 | 420 | 139 | 348 |
| Sunny days | 8 | 7 | 9 | 5 | 8 | 5 | 2 | 3 | 2 | 5 | 9 | 6 |
| Rainy days | 22 | 21 | 22 | 25 | 23 | 25 | 29 | 28 | 28 | 26 | 21 | 25 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Koseda during the most sunny months:
The largest precipitation sum in Koseda is at