December weather forecastFort Myers Beach, FL
December
Weather in December
December wraps up the year in Fort Myers Beach with the coolest temperatures — a refreshing change from November's mildness. The fall in sea temperature accompanies this dip, making sea activities less appealing. The city experiences an increase in relative humidity, but the average rainfall remains moderate. The wind speed sees a mild increase compared to November, contributing to the cooler feel. Despite the shorter days, December offers plenty of sunshine, setting the stage for the upcoming new year.Temperature
The transition into December is marked with an average high-temperature of a still moderately hot 73.9°F (23.3°C), showing an insignificant shift from November's 77.5°F (25.3°C). Throughout December, Fort Myers Beach witnesses a nighttime temperature average of 64.2°F (17.9°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Fort Myers Beach, during December, the rain falls for 9.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Fort Myers Beach, during the entire year, the rain falls for 190.9 days and collects up to 41.73" (1060mm) of precipitation.Ocean temperature
In Fort Myers Beach, the average seawater temperature in December is 71.2°F (21.8°C).Note: Most people find swimming in 71.2°F (21.8°C) unenjoyable. As the water temperature falls from 69.8°F (21°C) to 59°F (15°C), controlling one's breathing becomes harder.
Daylight
December has the shortest days of the year, with an average of 10h and 30min of daylight.On the first day of December, 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 in Fort Myers Beach.UV index
In Fort Myers Beach, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 during December translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, FL
- Average sea temperature in December: 71.2°F
The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (66.6°F).
Average daylight in December /
Average sunshine in December
Fort Myers Beach, FL
- Average daylight in December: 10h and 30min
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 36min
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
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, 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
Fort Myers Beach, 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).
