Nikkō Weather in September

What's the weather like in Nikkō (Tochigi) in September 2023?

The climate in Nikkō during September can be summarized as mild and very wet.

September is in the fall / autumn in Nikkō and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 12°C (54°F) is normal.

Nikkō weather averages (imperial / metric)
Daytime temperature 20°C 68°F
Nightly temperature 12.4°C 54.3°F
Average temperature 16.2°C 61.2°F
Daily sunshine 3.9 hrs
Avg rainfall 285 mm 11.2 ins
Rainy days 22 days
Sea temperature 25°C 77°F
Humidity 84%
Windspeed 7.9kph 5 mph

On average September is the 2nd wettest month of the year in Nikkō with around 285mm 11.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.9 hours of sunshine per day.

September temperatures in Nikkō

Nikkō average temperature in September

September rainfall

Nikkō average rain in September

September hourly sunshine

Nikkō 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 Nikkō in September 2023.

Other monthly averages

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UV index Best time to go?

Nikkō weather stats

Nikkō weather statistics
Hottest month: August 24.5°C 76.1°F
Driest month: December 41mm 1.6ins
Sunniest month: January 6.1hrs
Coldest month: January 0.9°C 33.6°F
Wettest month: August 318mm 12.5ins
Map showing location of Nikkō (36.75, 139.61667)

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