Weather in Ishigaki Island, Yaeyama Islands, Japan in September

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Visiting Ishigaki Island, Yaeyama Islands, Japan in September

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

The weather in September is marginally cooler than the previous month and temperatures continue to drop into October. September has average maximum temperatures of 30°C (87°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

Sea temperatures are a very warm 29°C (84°F). September is an excellent month for swimming in Ishigaki Island with very comfortable temperatures for bathing all day. The sea temperature in September is marginally cooler than the previous month and temperatures continue to drop slightly into October.

September brings slightly cooler weather, but it's still warm enough for swimming, snorkeling, and diving. The winds start to pick up, making it a great time for windsurfing and kitesurfing. Sunbathing and beach walks remain enjoyable during this month. Also consider visiting Ishigaki Island in one of the other best months of June, July, October, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Ishigaki Island in September?

Yes, September is a good time for sunbathing in Ishigaki Island.

September has average maximum temperatures of 30°C (87°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

More about September temperature and sunshine.

Can you swim in Ishigaki Island in September?

Yes, September is an excellent month for swimming in Ishigaki Island with very warm sea temperatures 29°C (84°F).

More about September sea temperatures.

Is September a good time to holiday in Ishigaki Island?

Yes, September is a good time for a holiday in Ishigaki Island.

September has average maximum temperatures of 30°C (87°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day. Sea temperatures are a very warm 29°C (84°F). September is an excellent month for swimming in Ishigaki Island with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is Ishigaki Island warm in September?

Yes, Ishigaki Island is very hot and perfect for sunbathing on clear days in September.

The average maximum temperature in Ishigaki Island in September is 30°C (87°F). The average maximum temperature is 31°C (88°) in the previous month and 28°C (82°F) in the next month.

The average temperature in Ishigaki Island in September is 28°C (83°F). The average temperature is 29°C (84°F) in the previous month and 26°C (79°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Ishigaki Island in September?

The average day light hours per day in Ishigaki Island in September are 12.3. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

More about September sunshine.

Crowds in Ishigaki Island in September

September is the end of the peak travel season in Ishigaki Island, as the weather starts to cool down and the rainy season begins. The beach is still relatively busy, but the crowds are more manageable compared to August. There are no significant public holidays or events in September.

Temperature in Ishigaki Island in September

The weather in September is marginally cooler than the previous month and temperatures continue to drop into October. The average maximum temperature in Ishigaki Island in September is 30°C (87°F). The average maximum temperature is 31°C (88°F) in the previous month and 28°C (82°F) in the next month.

The average temperature in Ishigaki Island in September is 28°C (83°F). The average temperature is 29°C (84°F) in the previous month and 26°C (79°F) in the next month.

The average minimum temperature in Ishigaki Island in September is 26°C (80°F). The minimum temperature is 27°C (81°F) in the previous month and 24°C (76°F) in the next month.

Sunshine in Ishigaki Island in September

The days in September are slightly shorter than the previous month and days continue to get slightly shorter into October. During September the average day light hours are 12.3 per day in Ishigaki Island. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

The ultraviolet index in Ishigaki Island in September is typically 11.2 during September. 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 Ishigaki Island in September

The average sea water temperature in Ishigaki Island in September is 29°C (84.2°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is marginally cooler than the previous month and temperatures continue to drop slightly into October.

Humidity in Ishigaki Island in September

The maximum dew point (an indicator of humidity) in Ishigaki Island in September is 25°C (76°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 (79°F) in the previous month and 22°C (22°F) in the next month.

The average maximum relative humidity in Ishigaki Island in September is typically 85.8%. The maximum relative humidity is 87.5% in the previous month and 81.1% in the next month.

The average relative humidity in Ishigaki Island in September is typically 74.9%. The average relative humidity is 77.5% in the previous month and 71.2% in the next month.

Wind Speed in Ishigaki Island in September

The average maximum wind speed in Ishigaki Island in September is typically 32KM/H (20MPH). The average maximum wind speed is 30KM/H (19MPH) in the previous month and 39KM/H (24MPH) in the next month.

The average wind speed in Ishigaki Island in September is typically 24KM/H (15MPH). The average wind speed is 23KM/H (14MPH) in the previous month and 31KM/H (19MPH) in the next month.

The average wind direction in Ishigaki Island in September is from the East-Northeast.

Monthly Averages

Suggested Beaches in September

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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.