December weather forecast
Clearwater, FL

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The skyline and cityscape of Clearwater Beach in Florida
The skyline and cityscape of Clearwater Beach in Florida

Weather in December

The year wraps up in Clearwater with December, a month of cool temperatures and gentle winds. The city's sky is frequently decorated with clouds, lending an appealing wintry atmosphere. The hushed winds and high relative humidity of 77% add to December’s distinctive charm. The steady drop in temperature is a noticeable trend, with a cooler 60.6°F (15.9°C) being the low for the month. Despite being the last month of the year, December's weather stays relatively warm, providing an ideal escape from harsh winters observed elsewhere, thus marking a stunning end to Clearwater's climatic calendar.

Temperature

With December's arrival, Clearwater's weather records an average high-temperature of an agreeable 70.3°F (21.3°C), marking little difference from November's 74.3°F (23.5°C). Nighttime temperatures hover around an average low of 60.6°F (15.9°C) in December.

Humidity

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

Rainfall

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

Ocean temperature

In Clearwater, in December, the average water temperature is 68.5°F (20.3°C).
Note: Swimming is not a pleasant activity for most when the water temperature is 68.5°F (20.3°C). As the water temperature drops from 69.8°F (21°C) to 59°F (15°C), breathing becomes more difficult to control.

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

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

UV index

In Clearwater, the average daily maximum UV index in December is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 5 in December leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What are the temperatures in Clearwater in December?

The high-temperature during December is 70.3°F (21.3°C) and the low-temperature is 60.6°F (15.9°C). In October, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the most humid month in Clearwater?

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

What is the average humidity in December in Clearwater?

The average relative humidity in December in Clearwater, Florida, is 77%.

How many days does it rain in December in Clearwater?

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

What is the ocean temperature in December in Clearwater?

In Clearwater, 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 Clearwater?

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

What is the average length of the day in December in Clearwater?

In Clearwater, Florida, the average day length in December is 10h and 24min.

What time are sunrise and sunset in December in Clearwater?

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 in Clearwater?

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

How long on average sun shines in December in Clearwater?

In Clearwater, the average sunshine duration in December is 6.5h.

What is the UV index intensity in December in Clearwater?

In December, the average daily maximum UV index in Clearwater is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Clearwater, FL

Average temperature in December - Clearwater, 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
Clearwater, FL

Average pressure in December - Clearwater, 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
Clearwater, FL

Average wind speed in December - Clearwater, 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
Clearwater, FL

Average humidity in December - Clearwater, 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
Clearwater, FL

Average rainfall in December - Clearwater, 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
Clearwater, FL

Average rainfall days in December - Clearwater, 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
Clearwater, FL

Average sea temperature in December - Clearwater, 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
Clearwater, FL

Average daylight in December / Average sunshine in December - Clearwater, 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
Clearwater, FL

Average sunshine days in December - Clearwater, 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
Clearwater, FL

Average UV index in December - Clearwater, 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
Clearwater, FL

Average cloud cover in December - Clearwater, 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
Clearwater, FL

Average visibility in December - Clearwater, 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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Clearwater, Florida, USA

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