Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
During December, Papaikou observes a subtle ascent to a still agreeable 71.6°F (22°C) from November's 72.9°F (22.7°C) in the average high-temperature. The nights of December cool down to an average low of 66.4°F (19.1°C), subtly lower than daytime highs.Humidity
In Papaikou, the average relative humidity in December is 79%.Rainfall
In Papaikou, Hawaii, during December, the rain falls for 18.4 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Papaikou, during the entire year, the rain falls for 227.7 days and collects up to 27.83" (707mm) of precipitation.Ocean temperature
In Papaikou, the average seawater temperature in December is 76.8°F (24.9°C).Note: People sensitive to cold might find swimming in 76.8°F (24.9°C) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.
Daylight
The month with the shortest days is December, with an average of 11h and 0min of daylight.On the first day of December in Papaikou, sunrise is at 6:39 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 5:52 pm HST.
Sunshine
December has the least sunshine of the year in Papaikou, with an average of 6.5h of sunshine.UV index
May through December, with an average maximum UV index of 6, are months with the highest UV index in Papaikou. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 in December translates into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Frequently asked questions
What is the average December temperature in Papaikou?
What is the average humidity in December in Papaikou?
How many days does it rain in December in Papaikou?
How warm is the water in December in Papaikou?
What is the month with the shortest days in Papaikou?
How many hours of daylight does Papaikou have in December?
When is the sunrise / sunset in December in Papaikou?
What is the month with the least sunshine in Papaikou?
How long on average sun shines in December in Papaikou?
What is the month with the highest UV index in Papaikou?
What is the UV index reading in December in Papaikou?
Average temperature in December
Papaikou, HI
- Average high temperature in December: 71.6°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).
- Average low temperature in December: 66.4°F
The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).
Average pressure in December
Papaikou, 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).
Average wind speed in December
Papaikou, HI
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).
Average humidity in December
Papaikou, HI
- Average humidity in December: 79%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).
Average rainfall in December
Papaikou, HI
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in December
Papaikou, HI
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).
Average sea temperature in December
Papaikou, HI
- Average sea temperature in December: 76.8°F
The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in December /
Average sunshine in December
Papaikou, 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).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Papaikou, HI
- Average sunshine days in December: 6.2 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in December
Papaikou, HI
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).
Average cloud cover in December
Papaikou, HI
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Papaikou, 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).
Papaikou, Hawaii, USA
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