Weather in Diamond Head, Honolulu, United States in December

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Visiting Diamond Head, Honolulu, 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 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day. It is a good time for sunbathing in Diamond Head.

December has total rainfall of 8.5cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 12.1 days with some rainfall so you can still enjoy the beach on the majority of days.

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

December brings a mix of sun and rain to Diamond Head, with the weather becoming more unpredictable. The ocean remains relatively calm, making swimming, snorkeling, and diving popular activities. Surfing conditions may be less consistent, but the trade winds continue to provide good conditions for windsurfing and kitesurfing. Consider visiting Diamond Head in the months of June, July, August, October, for the best beach weather. Also consider one of our other suggestions for December.

Can you sunbathe in Diamond Head in December?

Yes, December is a good time for sunbathing in Diamond Head.

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 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day. December has total rainfall of 8.5cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 12.1 days with some rainfall so you can still enjoy the beach on the majority of days.

More about December temperature and sunshine.

Can you swim in Diamond Head in December?

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

More about December sea temperatures.

Is December a good time to holiday in Diamond Head?

Yes, December is a good time for a holiday in Diamond Head.

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 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day. December has total rainfall of 8.5cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 12.1 days with some rainfall so you can still enjoy the beach on the majority of days. It is a good time for sunbathing in Diamond Head. Sea temperatures are a very warm 25°C (77°F). December is an excellent month for swimming in Diamond Head with very comfortable temperatures for bathing all day.

More about the December temperatures and sunshine.

Is Diamond Head warm in December?

Yes, Diamond Head is very warm and perfect for sunbathing on clear days in December.

The average maximum temperature in Diamond Head in December is 27°C (81°F). The average maximum temperature is 29°C (83°) in the previous month and 27°C (80°F) in the next month.

The average temperature in Diamond Head in December is 24°C (75°F). The average temperature is 26°C (78°F) in the previous month and 23°C (74°F) in the next month.

More info about the December temperatures and sunshine.

How sunny is Diamond Head in December?

The average day light hours per day in Diamond Head in December are 10.8. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day.

More about December sunshine.

Crowds in Diamond Head in December

December sees an increase in crowds due to the holiday season, with tourists visiting Honolulu for Christmas and New Year's celebrations. The beach at Diamond Head can get moderately crowded, especially during the peak holiday weeks. The Honolulu Marathon and the Hawaii Bowl, a college football game, may also attract additional crowds during this month.

Temperature in Diamond Head 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 Diamond Head in December is 27°C (81°F). The average maximum temperature is 29°C (83°F) in the previous month and 27°C (80°F) in the next month.

The average temperature in Diamond Head in December is 24°C (75°F). The average temperature is 26°C (78°F) in the previous month and 23°C (74°F) in the next month.

The average minimum temperature in Diamond Head in December is 21°C (69°F). The minimum temperature is 22°C (71°F) in the previous month and 20°C (67°F) in the next month.

Sunshine in Diamond Head 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 10.8 per day in Diamond Head. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day.

The ultraviolet index in Diamond Head in December is typically 6.3 during December. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. 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 Diamond Head in December

The average sea water temperature in Diamond Head in December is 25.2°C (77.4°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 Diamond Head in December

December weather is slightly drier than the previous month. December has fewer days of rain than the previous month. The average total rainfall in Diamond Head in December is 8.5cm (3.3inches) and on average there are 12.1 rainy days in December making it a pretty wet time to visit the beach.

Humidity in Diamond Head in December

The maximum dew point (an indicator of humidity) in Diamond Head 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 20°C (68°F) in the previous month and 19°C (19°F) in the next month.

The average maximum relative humidity in Diamond Head in December is typically 85.6%. The maximum relative humidity is 83.7% in the previous month and 86.3% in the next month.

The average relative humidity in Diamond Head in December is typically 71.4%. The average relative humidity is 69.4% in the previous month and 72% in the next month.

Wind Speed in Diamond Head in December

The average maximum wind speed in Diamond Head in December is typically 30KM/H (19MPH). The average maximum wind speed is 30KM/H (19MPH) in the previous month and 29KM/H (18MPH) in the next month.

The average wind speed in Diamond Head in December is typically 14KM/H (9MPH). The average wind speed is 14KM/H (9MPH) in the previous month and 14KM/H (8MPH) in the next month.

The average wind direction in Diamond Head in December is from the North-Northeast.

Monthly Averages

Suggested Beaches in December

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Need Inspiration?

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