December weather forecast
Kailua-Kona, HI

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Kailua-Kona, Hawaii, surrounded by clear waters
Kailua-Kona, Hawaii, surrounded by clear waters

Weather in December

December marks the end of the year, with Kailua-Kona transitioning towards lower temperatures and increased precipitation. The lowest temperatures range from 69.4°F (20.8°C) to 82.5°F (28.1°C), providing a sense of mild winters. The daylight hours gradually decrease due to the winter solstice. Rainfall hits its annual peak, inviting a lush, greener scenery across the city. Despite the increased rainfall, Kailua-Kona retains its unique charm and offers a serene ambiance for holiday celebrations.

Temperature

The transition into December in Kailua-Kona marks the average high-temperature at a still warm 82.6°F (28.1°C), differing minimally from November's 84.2°F (29°C). Throughout the month of December, the average temperature in Kailua-Kona dips to a pleasant 69.4°F (20.8°C) at night.

Rainfall

The month with the most rainfall is December, when 2.83" (72mm) of precipitation is typically aggregated.

Ocean temperature

In December, the average ocean temperature in Kailua-Kona is 77.4°F (25.2°C).
Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

With an average of 11h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:42 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:56 pm HST.
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Frequently asked questions

How hot is December in Kailua-Kona?

The average high-temperature, in December, in Kailua-Kona, is 82.6°F (28.1°C), while the average low-temperature is 69.4°F (20.8°C).

What is the wettest month in Kailua-Kona?

The month with the most rainfall in Kailua-Kona is December, when 2.83" (72mm) of precipitation is typically aggregated.

How much does it rain in Kailua-Kona in December?

In Kailua-Kona, in December, 2.83" (72mm) of precipitation is typically accumulated.

What is the water temperature in December in Kailua-Kona?

In December, the average ocean temperature is 77.4°F (25.2°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the month with the shortest days in Kailua-Kona?

With an average of 11h and 0min of daylight, December has the shortest days of the year in Kailua-Kona.

What is the average length of the day in December in Kailua-Kona?

In December, the average day length is 10h and 58min.

What time are sunrise and sunset in December in Kailua-Kona?

On the first day of December in Kailua-Kona, Hawaii, sunrise is at 6:42 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:56 pm HST.

Average temperature in December
Kailua-Kona, HI

Average temperature in December - Kailua-Kona, HI
  • Average high temperature in December: 82.5°F

The warmest month (with the highest average high temperature) is August (86.9°F).
The month with the lowest average high temperature is February (81.2°F).

  • Average low temperature in December: 69.4°F

The month with the highest average low temperature is August (75.1°F).
The coldest month (with the lowest average low temperature) is February (68°F).

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Average rainfall in December
Kailua-Kona, HI

Average rainfall in December - Kailua-Kona, HI
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is July (0.7").

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Average sea temperature in December
Kailua-Kona, HI

Average sea temperature in December - Kailua-Kona, HI
  • Average sea temperature in December: 77.4°F

The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (76°F).

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Average daylight in December
Kailua-Kona, HI

Average daylight in December - Kailua-Kona, HI
  • Average daylight in December: 11h and 0min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

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Kailua-Kona, Hawaii, USA

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