December weather forecast
Belleair Beach, FL

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Weather in December

December, the first month of the winter in Belleair Beach, is also an agreeable month, with an average temperature varying between 60.6°F (15.9°C) and 70.3°F (21.3°C).

Temperature

The commencement of December brings an average high-temperature of a pleasant 70.3°F (21.3°C), marking an inconsequential divergence from November. During December nights, Belleair Beach witnesses a consistent average temperature of 60.6°F (15.9°C).

Humidity

With an average relative humidity of 77%, December is the most humid month.

Rainfall

In Belleair Beach, in December, it is raining for 7.4 days, with typically 0.83" (21mm) of accumulated precipitation. In Belleair Beach, during the entire year, the rain falls for 149.9 days and collects up to 16.18" (411mm) of precipitation.

Ocean temperature

In Belleair Beach, in December, the average water temperature is 68.5°F (20.3°C).
Note: Swimming in water with a temperature of 68.5°F (20.3°C) is not a pleasurable experience for the majority. As the temperature falls below 69.8°F (21°C), it becomes increasingly hard to control one's breathing.

Daylight

December has the shortest days of the year, 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, in Belleair Beach, sunrise is at 7:22 am and sunset at 5:46 pm EST.

Sunshine

The month with the least sunshine in Belleair Beach is December, with an average of 6.5h of sunshine.

UV index

In Belleair Beach, the average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 5 in December leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

The high-temperature, in December, in Belleair Beach, is 70.3°F (21.3°C), while the low-temperature averages to 60.6°F (15.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in October is calculated to be 86°F (30°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 77%.

What is the average humidity in December in Belleair Beach?

In December, the average relative humidity is 77%.

How much does it rain in December?

In December, the rain falls for 7.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

How cold is the water in December?

In Belleair Beach, in December, the average water temperature is 68.5°F (20.3°C). Swimming in 68.5°F (20.3°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 24min of daylight.

How many hours of daylight does Belleair Beach have in December?

In December, the average day length is 10h and 25min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:46 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.5h of sunshine.

How many hours of sunshine does Belleair Beach have in December?

In December, the average sunshine duration is 6.5h.

How high is the UV index in December in Belleair Beach?

In Belleair Beach, the average daily maximum UV index in December is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Belleair Beach, FL

Average temperature in December - Belleair Beach, 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 Beach, FL

Average pressure in December - Belleair Beach, 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 Beach, FL

Average wind speed in December - Belleair Beach, 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 Beach, FL

Average humidity in December - Belleair Beach, 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 Beach, FL

Average rainfall in December - Belleair Beach, 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 Beach, FL

Average rainfall days in December - Belleair Beach, 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 Beach, FL

Average sea temperature in December - Belleair Beach, 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 Beach, FL

Average daylight in December / Average sunshine in December - Belleair Beach, 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 Beach, FL

Average sunshine days in December - Belleair Beach, 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 Beach, FL

Average UV index in December - Belleair Beach, 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 Beach, FL

Average cloud cover in December - Belleair Beach, 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 Beach, FL

Average visibility in December - Belleair Beach, 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 Beach, Florida, USA

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