Weather in Hawaii Island, United States in August

So you're interested in going to Hawaii Island, United States in August

August is a hot and rainy time for sunbathing in Hawaii Island. August is an excellent month for swimming in Hawaii Island with very warm sea temperatures. Consider visiting Hawaii Island in the months of June, July, August, September, for the best beach weather.

Also consider one of our other suggestions for August.

Temperature in Hawaii Island in August

The average maximum temperature in Hawaii Island in August is 29°. The average maximum temperature is 29° in the previous month and 29° in the next month.

The average temperature in Hawaii Island in August is 26°. The average temperature ranges is 26° in the previous month and 26° in the next month.

The average minimum temperature in Hawaii Island in August is 23°. The minimum temperature is 23° in the previous month and 23° in the next month.

Sunshine in Hawaii Island in August

The average day light hours per day in Hawaii Island in August are 12.8 and there are 7.7 hours of sunshine per day on average during August making it a quite sunny month with some cloud cover.

The ultraviolet index in Hawaii Island in August is typically 13.4 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 Hawaii Island in August

The average sea water temperature in Hawaii Island in August is 26.8° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Hawaii Island in August

The average total rainfall in Hawaii Island in August is 51.5cm and on average there are 15.4 rainy days in August making it a wet time to visit the beach.

Humidity in Hawaii Island in August

The maximum dew point (an indicator of humidity) in Hawaii Island in August is 21° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan. The dew point is 21° in the previous month and 21° in the next month.

The average maximum relative humidity in Hawaii Island in August is typically 81.4%. The maximum relative humidity is 82% in the previous month and 80.2% in the next month.

The average relative humidity in Hawaii Island in August is typically 68.8%. The average relative humidity is 69.4% in the previous month and 67.9% in the next month.

Wind Speed in Hawaii Island in August

The average maximum wind speed in Hawaii Island in August is typically 23kmh. The average maximum wind speed is 23kmh in the previous month and 23kmh in the next month.

The average wind speed in Hawaii Island in August is typically 11kmh. The average wind speed is 11kmh in the previous month and 11kmh in the next month.

The average wind direction in Hawaii Island in August is from the South-Southwest.

Monthly Averages

Suggested Beaches in August

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