Weather in Hawaii Island, United States in May

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Visiting Hawaii Island, United States in May

May has average maximum temperatures of 28°C (82°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 55.3% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. May has total rainfall of 6.6cm (2.6inches) making it mostly dry with only intermittent light showers. There are only 11.9 days with some rainfall so you can still enjoy the beach on the majority of days. It is a good time for sunbathing in Hawaii Island. Sea temperatures are a very warm 26°C (78°F). May is an excellent month for swimming in Hawaii Island with very comfortable temperatures for bathing all day.

Consider visiting Hawaii Island in the months of June, July, September, October, for the best beach weather.

Also consider one of our other suggestions for May.

Can you sunbathe in Hawaii Island in May?

Yes, May is a good time for sunbathing in Hawaii Island.

May has average maximum temperatures of 28°C (82°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 55.3% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. May has total rainfall of 6.6cm (2.6inches) making it mostly dry with only intermittent light showers. There are only 11.9 days with some rainfall so you can still enjoy the beach on the majority of days.

More about May temperature and sunshine.

Can you swim in Hawaii Island in May?

Yes, May is an excellent month for swimming in Hawaii Island with very warm sea temperatures 26°C (78°F).

More about May sea temperatures.

Is May a good time to holiday in Hawaii Island?

Yes, May is a good time for a holiday in Hawaii Island.

May has average maximum temperatures of 28°C (82°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 55.3% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. May has total rainfall of 6.6cm (2.6inches) making it mostly dry with only intermittent light showers. There are only 11.9 days with some rainfall so you can still enjoy the beach on the majority of days. It is a good time for sunbathing in Hawaii Island. Sea temperatures are a very warm 26°C (78°F). May is an excellent month for swimming in Hawaii Island with very comfortable temperatures for bathing all day.

More about the May temperatures and sunshine.

Is Hawaii Island warm in May?

Yes, Hawaii Island is very warm and perfect for sunbathing on clear days in May.

The average maximum temperature in Hawaii Island in May is 28°C (82°F). The average maximum temperature is 27°C (81°) in the previous month and 28°C (83°F) in the next month.

The average temperature in Hawaii Island in May is 25°C (77°F). The average temperature is 24°C (75°F) in the previous month and 25°C (78°F) in the next month.

More info about the May temperatures and sunshine.

How sunny is Hawaii Island in May?

The average day light hours per day in Hawaii Island in May are 13.1. The sunshine percentage is 55.3% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day.

More about May sunshine.

Temperature in Hawaii Island in May

The average maximum temperature in Hawaii Island in May is 28°C (82°F). The average maximum temperature is 27°C (81°F) in the previous month and 28°C (83°F) in the next month.

The average temperature in Hawaii Island in May is 25°C (77°F). The average temperature is 24°C (75°F) in the previous month and 25°C (78°F) in the next month.

The average minimum temperature in Hawaii Island in May is 22°C (71°F). The minimum temperature is 21°C (69°F) in the previous month and 22°C (72°F) in the next month.

Sunshine in Hawaii Island in May

During May the average day light hours are 13.1 per day in Hawaii Island. The sunshine percentage is 55.3% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day.

The ultraviolet index in Hawaii Island in May is typically 12.9 during May. 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 May

The average sea water temperature in Hawaii Island in May is 25.8°C (78.4°F) which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in Hawaii Island in May

The average total rainfall in Hawaii Island in May is 6.6cm (2.6inches) and on average there are 11.9 rainy days in May making it a pretty wet time to visit the beach.

Humidity in Hawaii Island in May

The maximum dew point (an indicator of humidity) in Hawaii Island in May is 20°C (68°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 19°C (67°F) in the previous month and 21°C (21°F) in the next month.

The average maximum relative humidity in Hawaii Island in May is typically 82.9%. The maximum relative humidity is 81.6% in the previous month and 81.9% in the next month.

The average relative humidity in Hawaii Island in May is typically 70%. The average relative humidity is 69% in the previous month and 69.3% in the next month.

Wind Speed in Hawaii Island in May

The average maximum wind speed in Hawaii Island in May is typically 23KM/H (14MPH). The average maximum wind speed is 24KM/H (15MPH) in the previous month and 23KM/H (14MPH) in the next month.

The average wind speed in Hawaii Island in May is typically 11KM/H (7MPH). The average wind speed is 11KM/H (7MPH) in the previous month and 10KM/H (6MPH) in the next month.

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

Monthly Averages

Suggested Beaches in May

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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.