December weather forecast
Kihei, HI

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Weather in December

December in Kihei, Hawaii, presents a mild winter weather, enjoying cooler temperatures and an increase in rainfall to 0.87" (22mm). Despite the increase in showers, the month still celebrates a fair share of sunny days, glistening the Island with a warm glow. Long evening walks along the beach are especially enjoyable due to the pleasant sea temperature. The festive mood, alongside Kihei's comfortable weather, perfectly wraps up the year.

Temperature

December in Kihei, Hawaii, registers an average high-temperature of a still moderately hot 75.7°F (24.3°C), slightly varied from November's 77.7°F (25.4°C). Kihei reports an average low-temperature of 72.9°F (22.7°C) during the subtly cooler December nights.

Humidity

In December, the average relative humidity in Kihei, Hawaii, is 75%.

Rainfall

The months with the most rainfall are March and December, with an average 0.87" (22mm) of precipitation.

Ocean temperature

In December, the average ocean temperature is 76.8°F (24.9°C).
Note: Think about diving into 76.8°F (24.9°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year in Kihei.
On the first day of December in Kihei, sunrise is at 6:46 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:56 pm HST.

Sunshine

The month with the least sunshine is December, with an average of 7h of sunshine.

UV index

The months with the lowest UV index in Kihei are January through June, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 6 in December leads to these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay cautious! Sand and water reflections increase UV radiation potency.
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Frequently asked questions

What are December temperatures in Kihei?

In Kihei, in December, the average high-temperature is 75.7°F (24.3°C), and the average low-temperature is 72.9°F (22.7°C).

What is the average humidity in December in Kihei?

In December, the average relative humidity in Kihei, Hawaii, is 75%.

What is the rainiest month in Kihei?

The wettest months are March and December, with an average 0.87" (22mm) of rainfall.

How much does it rain in Kihei in December?

In Kihei, during December, the rain falls for 9.2 days and regularly aggregates up to 0.87" (22mm) of precipitation.

How warm is the water in December in Kihei?

In Kihei, Hawaii, the average seawater temperature in December is 76.8°F (24.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.8°F (24.9°C) water may be enjoyable.

What is the month with the shortest days in Kihei?

The month with the shortest days in Kihei is December, with an average of 10h and 54min of daylight.

How many hours of daylight does Kihei have in December?

In December, the average day length in Kihei, Hawaii, is 10h and 54min.

When is the sunrise / sunset in December in Kihei?

On the first day of December in Kihei, Hawaii, sunrise is at 6:46 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:56 pm HST.

What is the month with the least sunshine in Kihei?

The month with the least sunshine is December, with an average of 7h of sunshine.

How many hours of sunshine does Kihei have in December?

In Kihei, Hawaii, the average sunshine duration in December is 7h.

What are the months with the lowest UV index in Kihei?

The months with the lowest UV index in Kihei are January through June, November and December, with an average maximum UV index of 6.

What is the UV index intensity in December in Kihei?

In Kihei, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in December
Kihei, HI

Average temperature in December - Kihei, HI
  • Average high temperature in December: 75.7°F

The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).

  • Average low temperature in December: 72.9°F

The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).

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Average pressure in December
Kihei, HI

Average pressure in December - Kihei, HI
  • Average pressure in December: 29.99"Hg

The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

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Average wind speed in December
Kihei, HI

Average wind speed in December - Kihei, HI
  • Average wind speed in December: 11.7mph

The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).

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Average humidity in December
Kihei, HI

Average humidity in December - Kihei, HI
  • Average humidity in December: 75%

The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).

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Average rainfall in December
Kihei, HI

Average rainfall in December - Kihei, HI
  • Average rainfall in December: 0.87"

The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in December
Kihei, HI

Average rainfall days in December - Kihei, HI
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).

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Average sea temperature in December
Kihei, HI

Average sea temperature in December - Kihei, HI
  • Average sea temperature in December: 76.8°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 (75.6°F).

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Average daylight in December /
Average sunshine in December
Kihei, HI

Average daylight in December / Average sunshine in December - Kihei, HI
  • Average daylight in December: 10h and 5min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in December: 7h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in December
Kihei, HI

Average sunshine days in December - Kihei, HI
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).

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Average UV index in December
Kihei, HI

Average UV index in December - Kihei, HI
  • Average UV index in December: 6

The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).

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Average cloud cover in December
Kihei, HI

Average cloud cover in December - Kihei, HI
  • Average cloud cover in December: 24

The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).

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Average visibility in December
Kihei, HI

Average visibility in December - Kihei, HI
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Kihei, Hawaii, USA

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