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 ranging between max 70.3°F (21.3°C) and min 60.6°F (15.9°C).

Temperature

Belleair Beach's entry into December measures an average high-temperature of a pleasant 70.3°F (21.3°C), closely parallel to the preceding month. December brings Belleair Beach a consistent average low-temperature of 60.6°F (15.9°C).

Humidity

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

Rainfall

In December, the rain falls for 7.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. 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, Florida, the average seawater temperature in December is 68.5°F (20.3°C).
Note: In water with a temperature of 68.5°F (20.3°C), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

With an average of 10h and 24min of daylight, December has the shortest days of the year.
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 is December, with an average of 6.5h of sunshine.

UV index

In December, the average daily maximum UV index in Belleair Beach is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 5 in December interprets into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the usual temperature for Belleair Beach in December?

An average high-temperature, in December, in Belleair Beach, is 70.3°F (21.3°C) and the average low-temperature is 60.6°F (15.9°C). In October, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the most humid month in Belleair Beach?

The most humid month in Belleair Beach is December, with an average relative humidity of 77%.

What is the average humidity in December in Belleair Beach?

In December, the average relative humidity in Belleair Beach is 77%.

How many days does it rain in December in Belleair Beach?

In Belleair Beach, Florida, during December, the rain falls for 7.4 days and regularly aggregates up to 0.83" (21mm) of precipitation.

How cold is the water in December in Belleair Beach?

In Belleair Beach, the average seawater temperature in December is 68.5°F (20.3°C). For swimming, a surface water temperature of 68.5°F (20.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days in Belleair Beach?

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 Belleair Beach, the average day length in December is 10h and 25min.

When is the sunrise / sunset in December in Belleair Beach?

On the first day of December, 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 in Belleair Beach?

With an average of 6.5h of sunshine, December has the least sunshine of the year in Belleair Beach.

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

In December, the average sunshine duration in Belleair Beach 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 of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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).

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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).

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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).

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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%).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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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).

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Belleair Beach, Florida, USA

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