December weather forecastGandy, FL
December
Weather in December
December, the first month of the winter in Gandy, is still a pleasant month, with an average temperature varying between 59.7°F (15.4°C) and 71.1°F (21.7°C).Temperature
The average high-temperature for December is a pleasant 71.1°F (21.7°C), closely aligning with the temperature of the preceding month. Gandy, during December nights, observes an average temperature of 59.7°F (15.4°C).Humidity
December is the most humid month, with an average relative humidity of 76%.Rainfall
In Gandy, during December, the rain falls for 8.4 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Gandy, there are 161.7 rainfall days, and 24.76" (629mm) of precipitation is accumulated.Ocean temperature
In Gandy, in December, the average water temperature is 68.5°F (20.3°C).Note: Swimming becomes less enjoyable for most at a surface water temperature of 68.5°F (20.3°C). As the temperature decreases below 69.8°F (21°C), breathing becomes increasingly difficult.
Daylight
With an average of 10h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:04 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:46 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 6.5h of sunshine.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 unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during December translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gandy, FL
- Average high temperature in December: 71.1°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (66.7°F).
- Average low temperature in December: 59.7°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 (55.2°F).
Average pressure in December
Gandy, 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
Gandy, FL
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Gandy, FL
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Gandy, FL
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in December
Gandy, FL
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is November (7.2 days).
Average sea temperature in December
Gandy, FL
- Average sea temperature in December: 68.6°F
The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).
Average daylight in December /
Average sunshine in December
Gandy, 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
Gandy, FL
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in December
Gandy, 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
Gandy, 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 21).
Average visibility in December
Gandy, 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).
