Weather in Hawaii Island, United States in December

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Visiting Hawaii Island, United States in December

The weather in December is marginally cooler than the previous month and temperatures continue to drop slightly into January. December has average maximum temperatures of 27°C (81°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 52.7% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day. It is a good time for sunbathing in Hawaii Island.

December has total rainfall of 9.8cm (3.9inches) making it mostly dry with only light showers. There are just 9.8 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

Sea temperatures are a very warm 25°C (77°F). December is an excellent month for swimming in Hawaii Island with very comfortable temperatures for bathing all day. The sea temperature in December is slightly cooler than the previous month.

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 December.

Can you sunbathe in Hawaii Island in December?

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

December has average maximum temperatures of 27°C (81°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 52.7% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day. December has total rainfall of 9.8cm (3.9inches) making it mostly dry with only light showers. There are just 9.8 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about December temperature and sunshine.

Can you swim in Hawaii Island in December?

Yes, December is an excellent month for swimming in Hawaii Island with very warm sea temperatures 25°C (77°F).

More about December sea temperatures.

Is December a good time to holiday in Hawaii Island?

Yes, December is a great time for a holiday in Hawaii Island.

December has average maximum temperatures of 27°C (81°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 52.7% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day. December has total rainfall of 9.8cm (3.9inches) making it mostly dry with only light showers. There are just 9.8 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. It is a good time for sunbathing in Hawaii Island. Sea temperatures are a very warm 25°C (77°F). December is an excellent month for swimming in Hawaii Island with very comfortable temperatures for bathing all day.

More about the December temperatures and sunshine.

Is Hawaii Island warm in December?

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

The average maximum temperature in Hawaii Island in December is 27°C (81°F). The average maximum temperature is 28°C (83°) in the previous month and 27°C (80°F) in the next month.

The average temperature in Hawaii Island in December is 24°C (75°F). The average temperature is 25°C (76°F) in the previous month and 23°C (73°F) in the next month.

More info about the December temperatures and sunshine.

How sunny is Hawaii Island in December?

The average day light hours per day in Hawaii Island in December are 10.9. The sunshine percentage is 52.7% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

More about December sunshine.

Temperature in Hawaii Island in December

The weather in December is marginally cooler than the previous month and temperatures continue to drop slightly into January. The average maximum temperature in Hawaii Island in December is 27°C (81°F). The average maximum temperature is 28°C (83°F) in the previous month and 27°C (80°F) in the next month.

The average temperature in Hawaii Island in December is 24°C (75°F). The average temperature is 25°C (76°F) in the previous month and 23°C (73°F) in the next month.

The average minimum temperature in Hawaii Island in December is 20°C (69°F). The minimum temperature is 21°C (70°F) in the previous month and 19°C (67°F) in the next month.

Sunshine in Hawaii Island in December

The days in December are slightly shorter than the previous month. December has slightly less hours of sunshine than the previous month. During December the average day light hours are 10.9 per day in Hawaii Island. The sunshine percentage is 52.7% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

The ultraviolet index in Hawaii Island in December is typically 7 during December. 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 Hawaii Island in December

The average sea water temperature in Hawaii Island in December is 25.1°C (77.2°F) which is warm and pleasant for relaxing and swimming for long periods. The sea temperature in December is slightly cooler than the previous month.

Rainfall in Hawaii Island in December

December weather is slightly wetter than the previous month. The average total rainfall in Hawaii Island in December is 9.8cm (3.9inches) and on average there are 9.8 rainy days in December making it a quite rainy time to visit the beach.

Humidity in Hawaii Island in December

The maximum dew point (an indicator of humidity) in Hawaii Island in December is 20°C (67°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 21°C (69°F) in the previous month and 19°C (19°F) in the next month.

The average maximum relative humidity in Hawaii Island in December is typically 81.8%. The maximum relative humidity is 82.3% in the previous month and 81.7% in the next month.

The average relative humidity in Hawaii Island in December is typically 69.4%. The average relative humidity is 70.2% in the previous month and 68.7% in the next month.

Wind Speed in Hawaii Island in December

The average maximum wind speed in Hawaii Island in December is typically 23KM/H (14MPH). The average maximum wind speed is 22KM/H (14MPH) in the previous month and 24KM/H (15MPH) in the next month.

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

The average wind direction in Hawaii Island in December is from the South-Southeast.

Monthly Averages

Suggested Beaches in December

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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.