Weather in Japan in August

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Visiting Japan in August

August is one of the best months to visit Japan for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

August has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 48.9% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day.

August has total rainfall of 2.2cm (0.9inches) making it mostly dry but with short lived occasional showers. There are only 14.7 days with some rainfall so you can still enjoy the beach on the majority of days.

Sea temperatures are a very warm 29°C (83°F). August is an excellent month for swimming in Japan with very comfortable temperatures for bathing all day. The sea temperature in August is marginally cooler than the previous month and temperatures continue to drop slightly into September.

Also consider visiting Japan in one of the other best months of July, September, October, for the best beach weather. Also consider one of our other suggestions for August.

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Can you sunbathe in Japan in August?

Yes, August is a good time for sunbathing in Japan.

August has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 48.9% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day. August has total rainfall of 2.2cm (0.9inches) making it mostly dry but with short lived occasional showers. There are only 14.7 days with some rainfall so you can still enjoy the beach on the majority of days.

More about August temperature and sunshine.

Can you swim in Japan in August?

Yes, August is an excellent month for swimming in Japan with very warm sea temperatures 29°C (83°F).

More about August sea temperatures.

Is August a good time to holiday in Japan?

Yes, August is a good time for a holiday in Japan.

August has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 48.9% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day. August has total rainfall of 2.2cm (0.9inches) making it mostly dry but with short lived occasional showers. There are only 14.7 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a very warm 29°C (83°F). August is an excellent month for swimming in Japan with very comfortable temperatures for bathing all day.

More about the August temperatures and sunshine.

Is Japan warm in August?

Yes, Japan is very hot and perfect for sunbathing on clear days in August.

The average maximum temperature in Japan in August is 31°C (88°F). The average maximum temperature is 31°C (88°) in the previous month and 30°C (86°F) in the next month.

The average temperature in Japan in August is 29°C (84°F). The average temperature is 29°C (84°F) in the previous month and 28°C (82°F) in the next month.

More info about the August temperatures and sunshine.

How sunny is Japan in August?

The average day light hours per day in Japan in August are 13.1. The sunshine percentage is 48.9% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day.

More about August sunshine.

Temperature in Japan in August

The average maximum temperature in Japan in August is 31°C (88°F). The average maximum temperature is 31°C (88°F) in the previous month and 30°C (86°F) in the next month.

The average temperature in Japan in August is 29°C (84°F). The average temperature is 29°C (84°F) in the previous month and 28°C (82°F) in the next month.

The average minimum temperature in Japan in August is 27°C (80°F). The minimum temperature is 27°C (80°F) in the previous month and 25°C (78°F) in the next month.

Sunshine in Japan in August

The days in August are slightly shorter than the previous month and days continue to get slightly shorter into September. August has slightly less hours of sunshine than the previous month. During August the average day light hours are 13.1 per day in Japan. The sunshine percentage is 48.9% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day.

The ultraviolet index in Japan in August is typically 12.2 during August. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Japan in August

The average sea water temperature in Japan in August is 28.6°C (83.5°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in August is marginally cooler than the previous month and temperatures continue to drop slightly into September.

Rainfall in Japan in August

August weather is slightly wetter than the previous month. August has a few more days of rain than the previous month. The average total rainfall in Japan in August is 2.2cm (0.9inches) and on average there are 14.7 rainy days in August making it a pretty wet time to visit the beach.

Humidity in Japan in August

The maximum dew point (an indicator of humidity) in Japan in August is 26°C (78°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 26°C (78°F) in the previous month and 24°C (24°F) in the next month.

The average maximum relative humidity in Japan in August is typically 89%. The maximum relative humidity is 88.1% in the previous month and 87.3% in the next month.

The average relative humidity in Japan in August is typically 78%. The average relative humidity is 77.2% in the previous month and 75.6% in the next month.

Wind Speed in Japan in August

The average maximum wind speed in Japan in August is typically 26KM/H (16MPH). The average maximum wind speed is 26KM/H (16MPH) in the previous month and 26KM/H (16MPH) in the next month.

The average wind speed in Japan in August is typically 18KM/H (11MPH). The average wind speed is 19KM/H (12MPH) in the previous month and 18KM/H (11MPH) in the next month.

The average wind direction in Japan in August is from the South East.

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Monthly Averages

Suggested Beaches in August

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.