
Karuizawa in September
Karuizawa in September
Karuizawa, Japan
Visiting Karuizawa in September means experiencing the autumn. During autumn, Karuizawa offers crisp air, changing colours, and a cosy atmosphere.
Weather in Karuizawa in September
Average highs around 22.5C and lows near 15.6C. 201.7mm average precipitation and about 20 rainy days. September typically sits between August and October conditions, so it is useful for travelers wanting a balanced window in Karuizawa. Pack quick-dry clothing and a light waterproof layer for September.
Temperature
September brings autumn conditions in Karuizawa, Japan. The average temperature is about 19.1C, with lows near 15.6C and highs around 22.5C.
Sunshine Hours
Karuizawa, Japan usually gets around 8.5 hours of sunshine per day in September, with roughly 12.4 daylight hours available for sightseeing.
Rain
September sees around 201.7mm of rainfall over about 20 days. Rain can occur for around 9.2 hours per day on average.











