Average annual temperature is 17.2 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -4.8 °C
Number of sunny days: 147 days
Number of rainy days: 216 days
Number of snow days: 2 days
Look at detailed online map of Koga
* Weather data for Koga 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) | 19.9 | 19.5 | 23.9 | 27.0 | 29.5 | 30.1 | 34.9 | 35.9 | 34.4 | 28.9 | 28.1 | 21.7 |
| Average daytime temperature (°C) | 10.6 | 13.3 | 18.1 | 21.0 | 24.7 | 27.0 | 31.0 | 32.9 | 30.9 | 23.5 | 18.4 | 12.8 |
| Average temperature (°C) | 6.1 | 8.3 | 12.7 | 15.9 | 19.9 | 23.0 | 27.0 | 28.3 | 26.0 | 17.7 | 13.1 | 8.3 |
| Average night temperature (°C) | 2.4 | 4.0 | 7.7 | 11.4 | 15.3 | 19.5 | 24.0 | 25.0 | 22.1 | 12.9 | 8.8 | 4.3 |
| Absolute minimum temperature (°C) | -4.8 | -4.0 | -2.6 | 4.2 | 8.5 | 12.2 | 21.6 | 22.1 | 19.9 | 7.3 | 0.7 | -3.4 |
| 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 | 9.0 |
| Sunshine mean duration (h) | 6.5 | 6.8 | 8.0 | 7.7 | 8.9 | 6.3 | 8.9 | 10.4 | 9.7 | 9.0 | 8.0 | 6.2 |
| Precipitation (mm) | 93 | 90 | 162 | 258 | 293 | 483 | 307 | 235 | 98 | 49 | 89 | 76 |
| Sunny days | 16 | 15 | 16 | 17 | 17 | 6 | 5 | 4 | 4 | 17 | 16 | 14 |
| Rainy days | 15 | 13 | 15 | 13 | 14 | 24 | 26 | 27 | 26 | 14 | 14 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Koga during the most sunny months:
The largest precipitation sum in Koga is at