December weather forecast
Kaanapali, HI

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Palm trees on green grass overlooking the famous Kaanapali beach in Hawaii
Palm trees on green grass overlooking the famous Kaanapali beach in Hawaii

Weather in December

Ending the year with the coolest temperatures, December witnesses reduced sea temperature of 77.2°F (25.1°C). This month experiences a resurgence in rainfall with 1.02" (26mm) received over 10.5 days, indicating a slight increase from November. Despite being the month with the shortest day length of 10.9 hours, daylight is still plentiful. Wrapping up the year, December proffers a mild, pleasant climate in Kaanapali.

Temperature

With the advent of December, Kaanapali experiences an average high-temperature of a still moderately hot 75.4°F (24.1°C), mirroring a close resemblance to the previous month. Kaanapali, in December, registers a nighttime average temperature of 72.7°F (22.6°C).

Humidity

In December, the average relative humidity in Kaanapali is 76%.

Rainfall

In Kaanapali, in December, it is raining for 10.5 days, with typically 1.02" (26mm) of accumulated precipitation. In Kaanapali, during the entire year, the rain falls for 112.6 days and collects up to 7.91" (201mm) of precipitation.

Ocean temperature

In Kaanapali, the average seawater temperature in December is 77.2°F (25.1°C).
Note: Between the temperatures of 77°F (25°C) and 84.2°F (29°C), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year in Kaanapali.
On the first day of December in Kaanapali, sunrise is at 6:47 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:56 pm HST.

Sunshine

With an average of 6.7h of sunshine, December has the least sunshine of the year.

UV index

January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Kaanapali. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be attentive! The UV exposure is heightened with reflections from sand and water.
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Frequently asked questions

What are December temperatures in Kaanapali?

In Kaanapali, 75.4°F (24.1°C) is the average high-temperature and 72.7°F (22.6°C) is the average low-temperature during December.

What is the average humidity in December in Kaanapali?

In Kaanapali, Hawaii, the average relative humidity in December is 76%.

How many days does it rain in December in Kaanapali?

In Kaanapali, Hawaii, in December, during 10.5 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

What is the water temperature in December in Kaanapali?

In December, the average ocean temperature in Kaanapali is 77.2°F (25.1°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Kaanapali?

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

What is the average length of the day in December in Kaanapali?

The average day length in December is 10h and 53min.

What time are sunrise and sunset in December in Kaanapali?

In December, on the first day of the month, sunrise is at 6:47 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:56 pm HST.

What is the month with the least sunshine in Kaanapali?

With an average of 6.7h of sunshine, December has the least sunshine of the year in Kaanapali, Hawaii.

How long on average sun shines in December in Kaanapali?

In December, the average sunshine duration in Kaanapali is 6.7h.

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

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

What is the UV index reading in December in Kaanapali?

In December, the average daily maximum UV index in Kaanapali is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kaanapali, HI

Average temperature in December - Kaanapali, HI
  • Average high temperature in December: 75.4°F

The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).

  • Average low temperature in December: 72.7°F

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

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Average pressure in December
Kaanapali, HI

Average pressure in December - Kaanapali, HI
  • Average pressure in December: 30"Hg

The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

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Average wind speed in December
Kaanapali, HI

Average wind speed in December - Kaanapali, HI
  • Average wind speed in December: 11.9mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).

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Average humidity in December
Kaanapali, HI

Average humidity in December - Kaanapali, HI
  • Average humidity in December: 76%

The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).

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Average rainfall in December
Kaanapali, HI

Average rainfall in December - Kaanapali, HI
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in December
Kaanapali, HI

Average rainfall days in December - Kaanapali, HI
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).

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Average sea temperature in December
Kaanapali, HI

Average sea temperature in December - Kaanapali, HI
  • Average sea temperature in December: 77.2°F

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (76°F).

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

Average daylight in December / Average sunshine in December - Kaanapali, 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: 6h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in December
Kaanapali, HI

Average sunshine days in December - Kaanapali, HI
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).

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Average UV index in December
Kaanapali, HI

Average UV index in December - Kaanapali, 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
Kaanapali, HI

Average cloud cover in December - Kaanapali, HI
  • Average cloud cover in December: 29

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).

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Average visibility in December
Kaanapali, HI

Average visibility in December - Kaanapali, 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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Kaanapali, Hawaii, USA

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