December weather forecastLower Grand Lagoon, FL
December
Weather in December
December, the first month of the winter in Lower Grand Lagoon, is still a refreshing month, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 51.8°F (11°C).Temperature
The start of December signals a gentle decrease in the average high-temperature, transitioning from a pleasant 68.9°F (20.5°C) in November to a refreshing 63.5°F (17.5°C). Throughout the December nights, Lower Grand Lagoon encounters a low-temperature of 51.8°F (11°C).Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
In December, the rain falls for 12.4 days. Throughout December, 3.78" (96mm) of precipitation is accumulated. Throughout the year, in Lower Grand Lagoon, there are 166.1 rainfall days, and 35.83" (910mm) of precipitation is accumulated.Snowfall
February, April through December are months without snowfall.Ocean temperature
In Lower Grand Lagoon, in December, the average water temperature is 66.9°F (19.4°C).Note: Most people find it challenging to enjoy swimming in water that is 66.9°F (19.4°C). As water temperature falls below 69.8°F (21°C), controlling breathing grows increasingly difficult.
Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:22 am and sunset at 4:42 pm. On the last day of December, in Lower Grand Lagoon, sunrise is at 6:39 am and sunset at 4:53 pm CST.
Sunshine
In Lower Grand Lagoon, Florida, the average sunshine in December is 5.8h.UV index
January, February and December, with an average maximum UV index of 4, are months with the lowest UV index in Lower Grand Lagoon, Florida. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the UV index of 4 transforms into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lower Grand Lagoon, FL
- Average high temperature in December: 63.5°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in December: 51.8°F
The month with the highest average low temperature is July (78.6°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure in December
Lower Grand Lagoon, FL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in December
Lower Grand Lagoon, FL
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Lower Grand Lagoon, 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 (71%).
Average rainfall in December
Lower Grand Lagoon, FL
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in December
Lower Grand Lagoon, FL
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (7.9 days).
Average snowfall days in December
Lower Grand Lagoon, FL
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are January and March (0.1 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Lower Grand Lagoon, FL
- Average sea temperature in December: 66.9°F
The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest month (with the lowest average sea temperature) is February (62.9°F).
Average daylight in December /
Average sunshine in December
Lower Grand Lagoon, FL
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 48min
The months with the most sunshine are May and June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in December
Lower Grand Lagoon, FL
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is August (5.7 days).
Average UV index in December
Lower Grand Lagoon, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in December
Lower Grand Lagoon, FL
- Average cloud cover in December: 38
The month with the most cloud cover is December (Cloud cover 38).
The months with the least cloud cover are May and October (Cloud cover 22).
Average visibility in December
Lower Grand Lagoon, 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).





