December weather forecastIndialantic, FL
December
Weather in December
December, the first month of the winter in Indialantic, is still a pleasant month, with an average temperature varying between 72.7°F (22.6°C) and 63.7°F (17.6°C).Temperature
The commencement of December introduces an average high-temperature of a pleasant 72.7°F (22.6°C), closely mirroring the preceding month. In Indialantic, the month of December records an average minimum temperature of 63.7°F (17.6°C), a slight dip from the daily highs.Humidity
In Indialantic, the average relative humidity in December is 77%.Rainfall
In Indialantic, Florida, in December, during 12.9 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 197.1 rainfall days, and 35.98" (914mm) of precipitation is accumulated.Ocean temperature
In Indialantic, in December, the average water temperature is 74.1°F (23.4°C).Note: Factoring in a person's dislike for cold, combined with conditions like sunshine, wind, and temperature, a dip in 74.1°F (23.4°C) waters might be satisfying. (It is worth noting that the Olympic swimming waters are maintained between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The month with the shortest days is December, with an average of 10h and 24min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:13 am and sunset at 5:37 pm EST.
Sunshine
The average sunshine in December is 6.1h.UV index
January, February and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 5 in December translates into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Indialantic, FL
- Average high temperature in December: 72.7°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 (69.3°F).
- Average low temperature in December: 63.7°F
The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in December
Indialantic, FL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Indialantic, FL
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is November (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in December
Indialantic, FL
- Average humidity in December: 77%
The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
Indialantic, FL
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is August (6.85").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in December
Indialantic, FL
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is February (9.9 days).
Average sea temperature in December
Indialantic, FL
- Average sea temperature in December: 74.2°F
The best month for swimming (with the highest average sea temperature) is August (84.7°F).
The coldest month (with the lowest average sea temperature) is January (71.4°F).
Average daylight in December /
Average sunshine in December
Indialantic, 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 6min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in December
Indialantic, FL
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in December
Indialantic, 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 months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in December
Indialantic, FL
- Average cloud cover in December: 35
The month with the most cloud cover is November (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in December
Indialantic, 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).





