December weather forecast and climate
Belleair Beach, FL

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

Temperature

In Belleair Beach, the average high-temperature is almost the same as in November - a pleasant 70.3°F (21.3°C). The average low-temperature, in December, is 60.6°F (15.9°C).

Humidity

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

Rainfall

In Belleair Beach, in December, it is raining for 7.4 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, in Belleair Beach, there are 149.9 rainfall days, and 16.18" (411mm) of precipitation is accumulated.

Ocean temperature

In Belleair Beach, the average water temperature is 68.5°F (20.3°C).
Note: 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).

Daylight

With an average of 10.4h of daylight, December has the shortest days of the year in Belleair Beach.

Sunshine

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

UV index

The average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in December interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.

What is the temperature in December in Belleair Beach?

In Belleair Beach, Florida, in December, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 60.6°F (15.9°C).

What is the most humid month in Belleair Beach?

December is the most humid month in Belleair Beach, Florida, 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, Florida, is 77%.

How much does it rain in Belleair Beach in December?

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

What is the ocean temperature in December in Belleair Beach?

In Belleair Beach, Florida, in December, the average water temperature 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?

December has the shortest days of the year, with an average of 10.4h of daylight.

What is the average length of the day in December in Belleair Beach?

The average length of the day in December in Belleair Beach, Florida, is 10.4h.

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, Florida.

How long on average sun shines in December in Belleair Beach?

The average sunshine in December is 6.5h.

What is the UV index reading in December in Belleair Beach?

The average daily maximum UV index in December in Belleair Beach is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
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: 30.1"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is September (29.96").

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: 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: 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: 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: 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: 10.4h

The month with the longest days is June (Average daylight: 13.9h).
The month with the shortest days is December (Average daylight: 10.4h).

  • Average sunshine in December: 6.5h

The month with the most sunshine is May (Average sunshine: 11.3h).
The month with the least sunshine is December (Average sunshine: 6.5h).

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: 5

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: 30

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: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).