December weather forecast
Dauphin Island, AL

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The scenic Dauphin Island in Alabama
The scenic Dauphin Island in Alabama

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.

Frequently asked questions

What is the usual temperature for Dauphin Island in December?

An average high-temperature, in December, in Dauphin Island, is 62.6°F (17°C) and the average low-temperature is 51.4°F (10.8°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 95°F (35°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 78%.

What is the average humidity in December in Dauphin Island?

In Dauphin Island, the average relative humidity in December is 78%.

How many days does it rain in December?

In Dauphin Island, in December, it is raining for 13.1 days, with typically 3.82" (97mm) of accumulated precipitation.

When it does not snow?

In Dauphin Island, snow does not fall in February through December.

Does it snow in December?

In Dauphin Island, in December, it doesn't snow. In January, it regularly snows.

What is the ocean temperature in December?

In December, the average ocean temperature in Dauphin Island is 62.6°F (17°C). Swimming in 62.6°F (17°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 12min of daylight.

How many hours of daylight does Dauphin Island have in December?

The average day length in December is 10h and 14min.

When is the sunrise / sunset in December?

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.

What are the months with the least sunshine?

The months with the least sunshine are February and December, with an average of 5.5h of sunshine.

How long on average sun shines in December?

In Dauphin Island, the average sunshine duration in December is 5.5h.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 4, are months with the lowest UV index.

How high is the UV index in December?

In Dauphin Island, the average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dauphin Island, AL

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Dauphin Island, AL
  • Average daylight in December: 10h and 1min

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 3min

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 - 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 - 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 - 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 - 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).

Dauphin Island, Alabama, USA

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