Nagano Weather in September

What's the weather like in Nagano (Nagano) in September 2024?

The climate in Nagano during September can be summarized as warm and wet.

September is in the fall / autumn in Nagano and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 15°C (60°F) is normal.

Nagano weather averages (imperial / metric)
Daytime temperature 23.9°C 74.9°F
Nightly temperature 15.4°C 59.6°F
Average temperature 19.6°C 67.3°F
Daily sunshine 4.5 hrs
Avg rainfall 153 mm 6 ins
Rainy days 19 days
Sea temperature 24.5°C 76.1°F
Humidity 79%
Windspeed 7.2kph 5 mph

On average September is the 3rd wettest month of the year in Nagano with around 153mm 6 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.5 hours of sunshine per day.

September temperatures in Nagano

Nagano average temperature in September

September rainfall

Nagano average rain in September

September hourly sunshine

Nagano average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Nagano in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Nagano weather stats

Nagano weather statistics
Hottest month: August 29°C 84.2°F
Driest month: December 45mm 1.8ins
Sunniest month: March 6hrs
Coldest month: January 2.7°C 36.9°F
Wettest month: July 169mm 6.7ins
Map showing location of Nagano (36.65139, 138.18111) Nagano map pin © Google

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