December weather forecast and climate
Harbor Bluffs, FL

Weather in December

December, the first month of the winter, in Harbor Bluffs, is also an agreeable month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 60.6°F (15.9°C).

Temperature

In Harbor Bluffs, Florida, the average high-temperature is practically the same as in November - a pleasant 70.3°F (21.3°C). In December, the average low-temperature is 60.6°F (15.9°C).

Humidity

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

Rainfall

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

Ocean temperature

In Harbor Bluffs, the average seawater temperature is 68.5°F (20.3°C).
Note: For most, swimming in 68.5°F (20.3°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water 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 10.4h of daylight.

Sunshine

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

UV index

In Harbor Bluffs, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in December in Harbor Bluffs?

In December, in Harbor Bluffs, 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 Harbor Bluffs?

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

What is the average humidity in December in Harbor Bluffs?

In Harbor Bluffs, the average relative humidity in December is 77%.

How many days does it rain in December in Harbor Bluffs?

In Harbor Bluffs, Florida, in December, it is raining for 7.4 days, with typically 0.83" (21mm) of accumulated precipitation.

How cold is the water in December in Harbor Bluffs?

In December, the average ocean temperature in Harbor Bluffs, Florida, 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 in Harbor Bluffs?

The month with the shortest days in Harbor Bluffs is December, with an average of 10.4h of daylight.

How many hours of daylight does Harbor Bluffs have in December?

In Harbor Bluffs, Florida, the average length of the day in December is 10.4h.

What is the month with the least sunshine in Harbor Bluffs?

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

How long on average sun shines in December in Harbor Bluffs?

In Harbor Bluffs, the average sunshine in December is 6.5h.

What is the UV index intensity in December in Harbor Bluffs?

In December, the average daily maximum UV index in Harbor Bluffs, Florida, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in December
Harbor Bluffs, FL

Average temperature in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average pressure in December - Harbor Bluffs, 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").

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Average wind speed in December
Harbor Bluffs, FL

Average wind speed in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average humidity in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average rainfall in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average rainfall days in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average sea temperature in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average daylight in December / Average sunshine in December - Harbor Bluffs, 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).

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Average sunshine days in December
Harbor Bluffs, FL

Average sunshine days in December - Harbor Bluffs, 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
Harbor Bluffs, FL

Average UV index in December - Harbor Bluffs, 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).

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Average cloud cover in December
Harbor Bluffs, FL

Average cloud cover in December - Harbor Bluffs, 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).

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Average visibility in December
Harbor Bluffs, FL

Average visibility in December - Harbor Bluffs, 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).

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