Ryōtsu Weather in September

What's the weather like in Ryōtsu (Niigata) in September 2022?

The climate in Ryōtsu during September can be summarized as warm, humid and wet.

September is in the fall / autumn in Ryōtsu and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 24°C (75°F), whilst at night 17°C (62°F) is normal.

Ryōtsu weather averages (imperial / metric)
Daytime temperature 24°C 75.1°F
Nightly temperature 16.7°C 62°F
Average temperature 20.3°C 68.5°F
Daily sunshine 5.1 hrs
Avg rainfall 171 mm 6.7 ins
Rainy days 19 days
Sea temperature 23.8°C 74.8°F
Humidity 77%
Windspeed 10.4kph 7 mph

On average September is the 4th wettest month of the year in Ryōtsu with around 171mm 6.7 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 5.1 hours of sunshine per day.

September temperatures in Ryōtsu

Ryōtsu average temperature in September

September rainfall

Ryōtsu average rain in September

September hourly sunshine

Ryōtsu 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 Ryōtsu in September 2022.

Other monthly averages

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UV index Best time to go?

Ryōtsu weather stats

Ryōtsu weather statistics
Hottest month: August 28.1°C 82.6°F
Driest month: March 95mm 3.7ins
Sunniest month: August 7hrs
Coldest month: February 3.8°C 38.8°F
Wettest month: December 179mm 7ins
Map showing location of Ryōtsu (38.08333, 138.43333)

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