December weather forecast and climate
Boynton Beach, FL

The first month of the winter, December, is still a warm month in Boynton Beach, Florida, with average temperature ranging between min 68.2°F (20.1°C) and max 75°F (23.9°C).

Temperature

In Boynton Beach, the average high-temperature is practically the same as in November - a still moderately hot 75°F (23.9°C). In Boynton Beach, in December, the average low-temperature is 68.2°F (20.1°C).

Humidity

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

Rainfall

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

Ocean temperature

In December, the average ocean temperature in Boynton Beach is 75.9°F (24.4°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75.9°F (24.4°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

December has the shortest days of the year in Boynton Beach, with an average of 10.5h of daylight.

Sunshine

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

UV index

In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in December in Boynton Beach?

In Boynton Beach, Florida, in December, the average high-temperature is 75°F (23.9°C), and the average low-temperature is 68.2°F (20.1°C).

What is the most humid month in Boynton Beach?

Months with the highest humidity in Boynton Beach, Florida, are June and December, with an average relative humidity of 76%.

What is the average humidity in December in Boynton Beach?

The average relative humidity in December in Boynton Beach, Florida, is 76%.

How much does it rain in Boynton Beach in December?

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

How warm is the water in December in Boynton Beach?

In Boynton Beach, Florida, in December, the average water temperature is 75.9°F (24.4°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75.9°F (24.4°C) water may be enjoyable.

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

The month with the shortest days in Boynton Beach, Florida, is December, with an average of 10.5h of daylight.

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

In December, the average length of the day is 10.5h.

What is the month with the least sunshine in Boynton Beach?

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

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

In December, the average sunshine in Boynton Beach is 6h.

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

In Boynton Beach, Florida, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the UV radiation.
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: 30.09"

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

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: 76%

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: 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: 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: 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: 10.5h

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in December: 6h

Months with the most sunshine are July and August (Average sunshine: 10.7h).
Months with the least sunshine are January and December (Average sunshine: 6).

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: 6

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: 36

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

Average visibility in December - Boynton 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).