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
With December's arrival, Captiva's weather records an average high-temperature of a still warm 73.9°F (23.3°C), marking little difference from November's 77.5°F (25.3°C). Captiva's temperature in December lowers to a consistent average of 63.9°F (17.7°C) during the nights.Humidity
The most humid month in Captiva is December, with an average relative humidity of 77%.Rainfall
In Captiva, during December, the rain falls for 5.5 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Captiva, during the entire year, the rain falls for 122 days and collects up to 8.98" (228mm) of precipitation.Ocean temperature
In Captiva, in December, the average water temperature is 75.2°F (24°C).Note: The cold tolerance of an individual, along with sunshine, wind, and the temperature of the environment, affects the enjoyment of swimming in 75.2°F (24°C) waters. (Olympic swimmers participate in waters ranging from 77°F (25°C) to 82.4°F (28°C).)
Daylight
December has the shortest days of the year in Captiva, Florida, with an average of 10h and 30min of daylight.On the first day of December, sunrise is at 7:00 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:47 pm EST.
Sunshine
December has the least sunshine of the year in Captiva, Florida, with an average of 6.7h of sunshine.UV index
The average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Note! Reflective surfaces like sand and water heighten the UV radiation levels.
Frequently asked questions
What is the temperature in December in Captiva?
What is the most humid month in Captiva?
What is the average humidity in December in Captiva?
How many days does it rain in December in Captiva?
What is the water temperature in December in Captiva?
What is the month with the shortest days in Captiva?
How many hours of daylight does Captiva have in December?
When are sunrise and sunset in December in Captiva?
What is the month with the least sunshine in Captiva?
How many hours of sunshine does Captiva have in December?
How high is the UV index in December in Captiva?
Average temperature in December
Captiva, 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 (70°F).
- Average low temperature in December: 63.9°F
The month with the highest average low temperature is August (81°F).
The coldest month (with the lowest average low temperature) is January (58.8°F).
Average pressure in December
Captiva, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in December
Captiva, FL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are October and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Captiva, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
Captiva, FL
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.16").
Average rainfall days in December
Captiva, FL
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is February (4.1 days).
Average sea temperature in December
Captiva, FL
- Average sea temperature in December: 75°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 (70°F).
Average daylight in December /
Average sunshine in December
Captiva, 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 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Captiva, FL
- Average sunshine days in December: 23.1 days
The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is September (7.2 days).
Average UV index in December
Captiva, 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
Captiva, 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
Captiva, 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).
Captiva, Florida, USA
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