December weather forecastDauphin Island, AL
December
Weather in December
Dauphin Island enters the winter season in December, and the weather adapts accordingly. Average high temperature decreases to 62.6°F (17°C), introducing the year's coldest month. Cloud cover is most prominent in December, suppressing the overall daylight hours to the minimum of the year. Despite being a winter month, there is no snowfall in December, inherent to the island's mild winter. To sum up, December weather in Dauphin Island beautifully blends cooler temperatures with serene coastal scenes.Temperature
December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's agreeable 68.2°F (20.1°C) to a comfortable 62.6°F (17°C). During December, the average low-temperature is recorded at a fresh 51.4°F (10.8°C).Humidity
December is the most humid month in Dauphin Island, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 13.1 days. Throughout December, 3.82" (97mm) of precipitation is accumulated. In Dauphin Island, during the entire year, the rain falls for 183.1 days and collects up to 45.94" (1167mm) of precipitation.Snowfall
February through December are months without snowfall.Ocean temperature
In Dauphin Island, in December, the average water temperature is 62.6°F (17°C).Note: For most, swimming in 62.6°F (17°C) is not a pleasant experience. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), controlling one's breathing becomes more difficult.
Daylight
The month with the shortest days is December, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:31 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 5:02 pm CST.
Sunshine
February and December, with an average of 5.5h of sunshine, are months with the least sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in December leads to these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dauphin Island, AL
- Average high temperature in December: 62.6°F
The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in December: 51.4°F
The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).
Average pressure in December
Dauphin Island, AL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Dauphin Island, AL
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Dauphin Island, AL
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Dauphin Island, AL
- Average rainfall in December: 3.82"
The wettest month (with the highest rainfall) is August (6.89").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in December
Dauphin Island, AL
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in December
Dauphin Island, AL
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Dauphin Island, AL
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Dauphin Island, AL
- Average sea temperature in December: 62.5°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest month (with the lowest average sea temperature) is January (58.7°F).
Average daylight in December /
Average sunshine in December
Dauphin Island, AL
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The months with the least sunshine are February and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Dauphin Island, AL
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (3.9 days).
Average UV index in December
Dauphin Island, AL
- 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
Dauphin Island, AL
- Average cloud cover in December: 42
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 22).
Average visibility in December
Dauphin Island, AL
- 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).
