December weather forecastPalm Harbor, FL

December

Weather in December

The first month of the winter, December, is still a pleasant month in Palm Harbor, Florida, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 70.2°F (21.2°C).

Temperature

Palm Harbor's weather in December indicates an average high-temperature of a pleasant 70.2°F (21.2°C), nearly consistent with the 74.1°F (23.4°C) of November. December sees the temperature falling to a mean low of 59.5°F (15.3°C).

Humidity

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

Rainfall

In Palm Harbor, in December, it is raining for 9 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 168.5 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

Ocean temperature

In Palm Harbor, the average seawater temperature in December is 65.1°F (18.4°C).
Note: Swimming in water of 65.1°F (18.4°C) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

December has the shortest days of the year, with an average of 10h and 24min of daylight.
On the first day of December, sunrise is at 7:05 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:46 pm EST.

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 in December is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 5 suggests these recommendations:
Take necessary precautions - Defending against sun damage is advocated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.

Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Palm Harbor, is 70.2°F (21.2°C) and the average low-temperature is 59.5°F (15.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in October is computed to be 86°F (30°C).

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

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

In December, the rain falls for 9 days. Throughout December, 1.77" (45mm) of precipitation is accumulated.

In Palm Harbor, in December, the average water temperature is 65.1°F (18.4°C). For swimming, a surface water temperature of 65.1°F (18.4°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).

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

In Palm Harbor, the average day length in December is 10h and 24min.

On the first day of December, sunrise is at 7:05 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:46 pm EST.

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

The average sunshine duration in December is 6.5h.

In December, the average daily maximum UV index in Palm Harbor is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

74.1°F

70.2°F

65.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.8mph

9.6mph

10mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

7.6

8.7

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

21.5

20.2

21.3

Average UV index

Average cloud cover

27%

30%

Average visibility

6mi

Average temperature in December
Palm Harbor, FL

Average high temperature in December: 70.2°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (65.7°F).

Average low temperature in December: 59.5°F

The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (55°F).

Average pressure in December
Palm Harbor, FL

Average pressure in December: 30.11"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
Palm Harbor, FL

Average wind speed in December: 8.8mph

The windiest months (with the highest average wind speed) are January and March (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity in December
Palm Harbor, FL

Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are May and October (72%).

Average rainfall in December
Palm Harbor, FL

Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is August (5.16").
The driest month (with the least rainfall) is March (0.79").

Average rainfall days in December
Palm Harbor, FL

Average rainfall days in December: 9 days

The month with the highest number of rainy days is July (25.6 days).
The month with the least rainy days is November (7.6 days).

Average sea temperature in December
Palm Harbor, FL

Average sea temperature in December: 65.1°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest month (with the lowest average sea temperature) is January (61.1°F).

Average daylight in December /
Average sunshine in December
Palm Harbor, FL

Average daylight in December: 10h and 24min

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 30min

The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in December
Palm Harbor, FL

Average sunshine days in December: 20.2 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (3.6 days).

Average UV index in December
Palm Harbor, 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
Palm Harbor, 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
Palm Harbor, 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).