December weather forecastPort Saint Joe, FL
December
Weather in December
December, the first month of the winter in Port Saint Joe, is also an enjoyable month, with an average temperature fluctuating between 54.3°F (12.4°C) and 64.4°F (18°C).Temperature
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from an agreeable 70°F (21.1°C) in November to an enjoyable 64.4°F (18°C). December in Port Saint Joe generally records an average low-temperature of 54.3°F (12.4°C).Humidity
With an average relative humidity of 77%, December is the most humid month in Port Saint Joe.Rainfall
In Port Saint Joe, Florida, in December, during 11.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In Port Saint Joe, during the entire year, the rain falls for 163 days and collects up to 33.03" (839mm) of precipitation.Snowfall
December is the only month when snow falls in Port Saint Joe. December has the most snowfall days of the year in Port Saint Joe. Snow falls for 0.1 days.Ocean temperature
In Port Saint Joe, Florida, in December, the average water temperature is 67.6°F (19.8°C).Note: For most individuals, swimming in 67.6°F (19.8°C) is not a pleasant experience. The difficulty in managing breathing increases as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
The month with the shortest days in Port Saint Joe, Florida, is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 6:19 am and sunset at 4:41 pm. On the last day of December, sunrise is at 6:36 am and sunset at 4:52 pm CST.
Sunshine
December has the least sunshine of the year in Port Saint Joe, with an average of 5.9h of sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 during December translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Port Saint Joe, FL
- Average high temperature in December: 64.4°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (60.8°F).
- Average low temperature in December: 54.3°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (50°F).
Average pressure in December
Port Saint Joe, FL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in December
Port Saint Joe, FL
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in December
Port Saint Joe, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Port Saint Joe, FL
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is August (4.76").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in December
Port Saint Joe, FL
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is August (23.7 days).
The month with the least rainy days is November (7.7 days).
Average snowfall days in December
Port Saint Joe, FL
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Port Saint Joe, FL
- Average sea temperature in December: 67.7°F
The best month for swimming (with the highest average sea temperature) is August (86.1°F).
The coldest months (with the lowest average sea temperature) are January and February (63.8°F).
Average daylight in December /
Average sunshine in December
Port Saint Joe, FL
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Port Saint Joe, FL
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is August (4.8 days).
Average UV index in December
Port Saint Joe, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Port Saint Joe, FL
- Average cloud cover in December: 36
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in December
Port Saint Joe, 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).
