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 snowfall 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
December notes an average high-temperature of a still moderately hot 77°F (25°C), subtly differing from November's 79.2°F (26.2°C). A mean low-temperature of 73.8°F (23.2°C) is anticipated during the month of December in Lanai City, a slight step down from the daytime high.Humidity
In Lanai City, Hawaii, the average relative humidity in December is 74%.Rainfall
In Lanai City, in December, it is raining for 10.4 days, with typically 1.1" (28mm) of accumulated precipitation. In Lanai City, during the entire year, the rain falls for 98.9 days and collects up to 7.64" (194mm) of precipitation.Snowfall
January through August, October through December are months without snowfall in Lanai City.Ocean temperature
In Lanai City, in December, the average water temperature is 77°F (25°C).Note: Temperatures between 77°F (25°C) and 84.2°F (29°C) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.
Daylight
December has the shortest days of the year in Lanai City, with an average of 10h and 54min of daylight.On the first day of December, sunrise is at 6:48 am and sunset at 5:45 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:57 pm HST.
Sunshine
The month with the least sunshine is December, with an average of 7.1h of sunshine.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Frequently asked questions
What is the temperature in December in Lanai City?
What is the average humidity in December in Lanai City?
How many days does it rain in December in Lanai City?
When it does not snow in Lanai City?
What is the ocean temperature in December in Lanai City?
What is the month with the shortest days in Lanai City?
How many hours of daylight does Lanai City have in December?
When are sunrise and sunset in December in Lanai City?
What is the month with the least sunshine in Lanai City?
How long on average sun shines in December in Lanai City?
When is the lowest UV index in Lanai City?
What is the UV index intensity in December in Lanai City?
Average temperature in December
Lanai City, HI
- Average high temperature in December: 77°F
The warmest month (with the highest average high temperature) is September (81°F).
The month with the lowest average high temperature is February (74.8°F).
- Average low temperature in December: 73.8°F
The months with the highest average low temperature are August and October (77.5°F).
The coldest month (with the lowest average low temperature) is March (71.6°F).
Average pressure in December
Lanai City, HI
- Average pressure in December: 29.99"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The month with the lowest atmospheric pressure is October (29.96"Hg).
Average wind speed in December
Lanai City, HI
- Average wind speed in December: 10mph
The windiest months (with the highest average wind speed) are March and November (10.9mph).
The calmest month (with the lowest average wind speed) is October (9mph).
Average humidity in December
Lanai City, HI
- Average humidity in December: 74%
The month with the highest relative humidity is July (75%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in December
Lanai City, HI
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is March (1.26").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Lanai City, HI
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (4.7 days).
Average snowfall days in December
Lanai City, HI
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average sea temperature in December
Lanai City, HI
- Average sea temperature in December: 77°F
The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).
Average daylight in December /
Average sunshine in December
Lanai City, 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 1min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in December
Lanai City, HI
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in December
Lanai City, HI
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover in December
Lanai City, HI
- Average cloud cover in December: 22
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in December
Lanai City, 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).
Lanai City, Hawaii, USA
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