Weather in Kume Island, Okinawa Prefecture, Japan in September

So you're interested in going to Kume Island, Okinawa Prefecture, Japan in September

September is a hot and slightly rainy time for sunbathing in Kume Island. September is an excellent month for swimming in Kume Island with very warm sea temperatures. Consider visiting Kume Island in the months of July, August, September, October, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in Kume Island in September

The average maximum temperature in Kume Island in September is 30°. The average maximum temperature is 31° in the previous month and 28° in the next month.

The average temperature in Kume Island in September is 28°. The average temperature ranges is 29° in the previous month and 26° in the next month.

The average minimum temperature in Kume Island in September is 26°. The minimum temperature is 27° in the previous month and 24° in the next month.

Sunshine in Kume Island in September

The average day light hours per day in Kume Island in September are 12.3 and there are 8.1 hours of sunshine per day on average during September making it a sunny month with few clouds.

The ultraviolet index in Kume Island in September is typically 10.7 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. 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 Kume Island in September

The average sea water temperature in Kume Island in September is 28.9° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Kume Island in September

The average total rainfall in Kume Island in September is 0.6cm and on average there are 12.8 rainy days in September making it a slightly wet time to visit the beach.

Humidity in Kume Island in September

The maximum dew point (an indicator of humidity) in Kume Island in September is 25° 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° in the previous month and 21° in the next month.

The average maximum relative humidity in Kume Island in September is typically 85%. The maximum relative humidity is 85.8% in the previous month and 78.2% in the next month.

The average relative humidity in Kume Island in September is typically 75%. The average relative humidity is 76.2% in the previous month and 69% in the next month.

Wind Speed in Kume Island in September

The average maximum wind speed in Kume Island in September is typically 27kmh. The average maximum wind speed is 27kmh in the previous month and 31kmh in the next month.

The average wind speed in Kume Island in September is typically 20kmh. The average wind speed is 20kmh in the previous month and 23kmh in the next month.

The average wind direction in Kume Island in September is from the North-Northeast.

Monthly Averages

Suggested Beaches in September

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