December weather forecastSunset Harbor, FL
December
Weather in December
December, the first month of the winter in Sunset Harbor, is still a pleasant month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 53.4°F (11.9°C).Temperature
As Sunset Harbor steps into December, the average high-temperature is measured at a pleasant 70.3°F (21.3°C), displaying minor differences from November's 74.5°F (23.6°C). In the month of December, Sunset Harbor witnesses a consistent average low-temperature of 53.4°F (11.9°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Sunset Harbor, Florida, in December, during 8.2 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 159.3 rainfall days, and 21.1" (536mm) of precipitation is accumulated.Snowfall
In Sunset Harbor, snow does not fall in February through December.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:04 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:41 pm EST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
In Sunset Harbor, the average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during December translates into the following guidance:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sunset Harbor, FL
- Average high temperature in December: 70.3°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (66.6°F).
- Average low temperature in December: 53.4°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).
Average pressure in December
Sunset Harbor, FL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in December
Sunset Harbor, FL
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Sunset Harbor, FL
- Average humidity in December: 76%
The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Sunset Harbor, FL
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is March (0.71").
Average rainfall days in December
Sunset Harbor, FL
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (21.9 days).
The month with the least rainy days is November (7 days).
Average snowfall days in December
Sunset Harbor, FL
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Sunset Harbor, FL
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is May (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Sunset Harbor, FL
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is July (6.3 days).
Average UV index in December
Sunset Harbor, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Sunset Harbor, FL
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in December
Sunset Harbor, FL
- 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).





