December weather forecastBoynton Beach, FL
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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"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: 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%
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: 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: 10h and 30min
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: 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
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: 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: 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).
