Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As December takes hold, the average high-temperature is a still moderately hot 73.9°F (23.3°C), nearly mirroring that of the previous month. An average low-temperature of 64.2°F (17.9°C) is observed during December nights in Sanibel.Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
In December, in Sanibel, the rain falls for 9.5 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Sanibel, during the entire year, the rain falls for 190.9 days and collects up to 41.73" (1060mm) of precipitation.Ocean temperature
In December, the average ocean temperature is 70.2°F (21.2°C).Note: In 70.2°F (21.2°C), swimming is not an enjoyable activity for most. As the temperature decreases from 69.8°F (21°C) to 59°F (15°C), it becomes harder to control breathing.
Daylight
December has the shortest days of the year in Sanibel, with an average of 10h and 30min of daylight.On the first day of December in Sanibel, sunrise is at 6:59 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:46 pm EST.
Sunshine
With an average of 6.6h of sunshine, December has the least sunshine of the year.UV index
The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during December translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Sanibel?
What is the most humid month in Sanibel?
What is the average humidity in December in Sanibel?
How much does it rain in Sanibel in December?
What is the ocean temperature in December in Sanibel?
What is the month with the shortest days in Sanibel?
How many hours of daylight does Sanibel have in December?
When is the sunrise / sunset in December in Sanibel?
What is the month with the least sunshine in Sanibel?
How long on average sun shines in December in Sanibel?
What is the UV index reading in December in Sanibel?
Average temperature in December
Sanibel, FL
- Average high temperature in December: 73.9°F
The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in December: 64.2°F
The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in December
Sanibel, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in December
Sanibel, FL
- Average wind speed in December: 9.6mph
The windiest months (with the highest average wind speed) are October and November (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Sanibel, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March, May, July, August and October (73%).
Average rainfall in December
Sanibel, FL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is August (8.54").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in December
Sanibel, FL
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (8.2 days).
Average sea temperature in December
Sanibel, FL
- Average sea temperature in December: 70.2°F
The best month for swimming (with the highest average sea temperature) is August (87.1°F).
The coldest month (with the lowest average sea temperature) is January (65.3°F).
Average daylight in December /
Average sunshine in December
Sanibel, FL
- Average daylight in December: 10h and 3min
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 4min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Sanibel, FL
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in December
Sanibel, 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 months with the lowest UV index are January and February (UV index 5).
Average cloud cover in December
Sanibel, FL
- Average cloud cover in December: 28
The month with the most cloud cover is January (Cloud cover 29).
The months with the least cloud cover are March and May (Cloud cover 23).
Average visibility in December
Sanibel, 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).
Sanibel, Florida, USA
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