December weather forecast
Boynton Beach, FL

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Weather in December

The first month of the winter, December, is also a moderately hot month in Boynton Beach, Florida, with temperature in the range of an average low of 68.2°F (20.1°C) and an average high of 75°F (23.9°C).

Temperature

The shift from November to December is characterized by an average high-temperature of a still moderately hot 75°F (23.9°C), not significantly different from the 77.9°F (25.5°C) of November. The December nights in Boynton Beach show a slight decrease to a mean low-temperature of 68.2°F (20.1°C).

Humidity

The months with the highest humidity are June and December, with an average relative humidity of 76%.

Rainfall

In Boynton Beach, in December, it is raining for 16.5 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, in Boynton Beach, Florida, there are 238.3 rainfall days, and 54.53" (1385mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature is 75.9°F (24.4°C).
Note: People sensitive to cold might find swimming in 75.9°F (24.4°C) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.

Daylight

December has the shortest days of the year, with an average of 10h and 30min of daylight.
On the first day of the month, sunrise is at 6:51 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:08 am and sunset at 5:38 pm EST.

Sunshine

The months with the least sunshine in Boynton Beach are January and December, with an average of 6h of sunshine.

UV index

In Boynton Beach, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 6 in December leads to these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Watch out! Sand and water enhance the UV exposure you receive.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures in Boynton Beach?

The average high-temperature and low-temperature during December are 75°F (23.9°C) and 68.2°F (20.1°C) respectively. In October, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the most humid month in Boynton Beach?

June and December, with an average relative humidity of 76%, are most humid months in Boynton Beach.

What is the average humidity in December in Boynton Beach?

The average relative humidity in December is 76%.

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

In Boynton Beach, in December, during 16.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

What is the ocean temperature in December in Boynton Beach?

In December, the average ocean temperature in Boynton Beach is 75.9°F (24.4°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 75.9°F (24.4°C).

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

The month with the shortest days in Boynton Beach is December, with an average of 10h and 30min of daylight.

How many hours of daylight does Boynton Beach have in December?

In Boynton Beach, the average day length in December is 10h and 31min.

When are sunrise and sunset in December in Boynton Beach?

On the first day of December in Boynton Beach, Florida, sunrise is at 6:51 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:38 pm EST.

What are the months with the least sunshine in Boynton Beach?

The months with the least sunshine in Boynton Beach, Florida, are January and December, with an average of 6h of sunshine.

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

The average sunshine duration in December in Boynton Beach is 6h.

What is the UV index intensity in December in Boynton Beach?

In Boynton Beach, Florida, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from 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
Boynton Beach, FL

Average temperature in December - Boynton Beach, FL
  • Average high temperature in December: 75°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (72.5°F).

  • Average low temperature in December: 68.2°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64°F).

Average pressure in December
Boynton Beach, FL

Average pressure in December - Boynton Beach, FL
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).

Average wind speed in December
Boynton Beach, FL

Average wind speed in December - Boynton Beach, FL
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is March (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

Average humidity in December
Boynton Beach, FL

Average humidity in December - Boynton Beach, FL
  • Average humidity in December: 76%

The months with the highest relative humidity are June and December (76%).
The month with the lowest relative humidity is March (70%).

Average rainfall in December
Boynton Beach, FL

Average rainfall in December - Boynton Beach, FL
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is August (9.06").
The driest month (with the least rainfall) is January (1.3").

Average rainfall days in December
Boynton Beach, FL

Average rainfall days in December - Boynton Beach, FL
  • Average rainfall days in December: 16.5 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (13.3 days).

Average sea temperature in December
Boynton Beach, FL

Average sea temperature in December - Boynton Beach, FL
  • Average sea temperature in December: 76°F

The best month for swimming (with the highest average sea temperature) is August (85.7°F).
The coldest month (with the lowest average sea temperature) is January (74.1°F).

Average daylight in December /
Average sunshine in December
Boynton Beach, FL

Average daylight in December / Average sunshine in December - Boynton Beach, FL
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 6h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).

Average sunshine days in December
Boynton Beach, FL

Average sunshine days in December - Boynton Beach, FL
  • Average sunshine days in December: 10.6 days

The month with the most sunshine days is March (12.7 days).
The month with the least sunshine days is July (2.3 days).

Average UV index in December
Boynton Beach, FL

Average UV index in December - Boynton Beach, FL
  • Average UV index in December: 6

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 5).

Average cloud cover in December
Boynton Beach, FL

Average cloud cover in December - Boynton Beach, FL
  • Average cloud cover in December: 36

The months with the most cloud cover are January, October, November and December (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 29).

Average visibility in December
Boynton Beach, FL

Average visibility in December - Boynton 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).

Boynton Beach, Florida, USA

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