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
The arrival of December is marked by an average high-temperature of a pleasant 70.3°F (21.3°C), bearing a close resemblance to November. In Belleair, the December nights cool down to an average low of 60.6°F (15.9°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Belleair, in December, during 7.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Belleair, during the entire year, the rain falls for 149.9 days and collects up to 16.18" (411mm) of precipitation.Ocean temperature
In Belleair, in December, the average water temperature is 68.5°F (20.3°C).Note: For the majority, swimming in water with a temperature of 68.5°F (20.3°C) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
The month with the shortest days is December, with an average of 10h and 24min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 5:35 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:46 pm EST.
Sunshine
The month with the least sunshine in Belleair is December, with an average of 6.5h of sunshine.UV index
The average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in December transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
What is the ocean temperature in December?
What is the month with the shortest days?
How many hours of daylight does Belleair have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Belleair have in December?
How high is the UV index in December?
Average temperature in December
Belleair, FL
- Average high temperature in December: 70.3°F
The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in December: 60.6°F
The month with the highest average low temperature is August (80.6°F).
The coldest month (with the lowest average low temperature) is January (55.9°F).
Average pressure in December
Belleair, FL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Belleair, FL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Belleair, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Belleair, FL
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (0.39").
Average rainfall days in December
Belleair, FL
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (6.7 days).
Average sea temperature in December
Belleair, FL
- Average sea temperature in December: 68.6°F
The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).
Average daylight in December /
Average sunshine in December
Belleair, FL
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Belleair, FL
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is August (5 days).
Average UV index in December
Belleair, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Belleair, FL
- Average cloud cover in December: 30
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in December
Belleair, 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).
Belleair, Florida, USA
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