Onomichi Weather in August

What's the weather like in Onomichi, Japan in August 2018?

The climate in Onomichi during August can be summarized as hot, humid and a little damp.

August is in the summer in Onomichi and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 23°C (73°F) is normal.

Onomichi weather averages (imperial / metric)
Daytime temperature 31.3°C 88.3°F
Nightly temperature 22.9°C 73.2°F
Average temperature 27.1°C 80.8°F
Daily sunshine 7.5 hrs
Avg rainfall 99 mm 3.9 ins
Rainy days 13 days
Sea temperature 27.3°C 81.1°F
Humidity 75%
Windspeed 6.5kph 4 mph

On average August is the 6th wettest month of the year in Onomichi with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.5 hours of sunshine per day.

August temperatures in Onomichi

August rainfall

August hourly sunshine

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 August 2018.

Other monthly averages

Onomichi weather stats

Onomichi weather statistics
Hottest month: August 31.1°C 88°F
Driest month: December 28mm 1.1ins
Sunniest month: August 7.5hrs
Coldest month: January 7.7°C 45.9°F
Wettest month: June 207mm 8.1ins
Map showing location of Onomichi (34.41667, 133.2)

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