Onagawa Chō Weather in October

What's the weather like in Onagawa Chō (Miyagi) in October 2025?

The climate in Onagawa Chō during October can be summarized as mild and damp.

October is in the fall / autumn in Onagawa Chō and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 9°C (49°F) is normal.

Onagawa Chō weather averages (imperial / metric)
Daytime temperature 18.1°C 64.5°F
Nightly temperature 9.4°C 48.8°F
Average temperature 13.7°C 56.7°F
Daily sunshine 5.3 hrs
Avg rainfall 116 mm 4.6 ins
Rainy days 16 days
Sea temperature 20.2°C 68.3°F
Humidity 76%
Windspeed 9kph 6 mph

On average October is the 5th wettest month of the year in Onagawa Chō with around 116mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.3 hours of sunshine per day.

October temperatures in Onagawa Chō

Onagawa Chō average temperature in October

October rainfall

Onagawa Chō average rain in October

October hourly sunshine

Onagawa Chō average rain in October

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 Onagawa Chō in October 2025.

Other monthly averages

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Onagawa Chō weather stats

Onagawa Chō weather statistics
Hottest month: August 26.8°C 80.2°F
Driest month: December 30mm 1.2ins
Sunniest month: January 5.8hrs
Coldest month: January 3.9°C 39°F
Wettest month: September 157mm 6.2ins
Map showing location of Onagawa Chō (38.44491, 141.43269) Onagawa Chō map pin © Google

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