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Kōenchō Weather by Month
Average temperatures, rainfall and humidity for Kōenchō, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Kōenchō month looks like before you travel — then check the live Kōenchō forecast for the days ahead.
Warmest month
July
25°C average high
Coolest month
January
-12°C average low
Wettest month
August
108 mm of rain
Driest month
February
3 mm of rain
Average temperature and rainfall in Kōenchō by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | -2°C | -12°C | -28°C / 10°C | 26 mm | 78% | 11 km/h |
| February | -2°C | -12°C | -24°C / 13°C | 3 mm | 78% | 10 km/h |
| March | 3°C | -5°C | -21°C / 17°C | 14 mm | 75% | 12 km/h |
| April | 10°C | 1°C | -13°C / 27°C | 47 mm | 68% | 13 km/h |
| May | 17°C | 6°C | -3°C / 37°C | 57 mm | 70% | 12 km/h |
| June | 20°C | 11°C | -1°C / 35°C | 70 mm | 79% | 10 km/h |
| July | 25°C | 16°C | 4°C / 38°C | 75 mm | 81% | 9 km/h |
| August | 24°C | 16°C | 8°C / 35°C | 108 mm | 83% | 9 km/h |
| September | 21°C | 12°C | 0°C / 35°C | 75 mm | 79% | 10 km/h |
| October | 14°C | 5°C | -10°C / 27°C | 68 mm | 76% | 11 km/h |
| November | 7°C | -1°C | -17°C / 20°C | 58 mm | 76% | 11 km/h |
| December | 1°C | -9°C | -24°C / 15°C | 65 mm | 74% | 11 km/h |
Best time to visit Kōenchō
The most comfortable time to visit Kōenchō is generally July to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around August, totalling about 666 mm a year.
Travellers who prefer heat should aim for July, when highs average 25°C. August is the month to avoid if rain would spoil your plans — it averages 108 mm, roughly 32× the rainfall of February.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Kōenchō forecast for what is happening now.