December weather forecast
Port Vincent, LA

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Weather in December

The first month of the winter, December, is also an enjoyable month in Port Vincent, Louisiana, with an average temperature fluctuating between 47.7°F (8.7°C) and 62.2°F (16.8°C).

Temperature

Port Vincent's weather subtly changes with the onset of December, barely falling from an agreeable 68.9°F (20.5°C) in November to a comfortable 62.2°F (16.8°C). Port Vincent encounters a steady low-temperature average of 47.7°F (8.7°C) throughout the month of December.

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In December, the rain falls for 10.7 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 151.5 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 6:42 am and sunset at 5:02 pm. On the last day of December, sunrise is at 6:59 am and sunset at 5:13 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.1h of sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Guard yourself - Avoiding sunburn is suggested. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

In December, in Port Vincent, the average high-temperature is 62.2°F (16.8°C), and the average low-temperature is 47.7°F (8.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is evaluated at 104°F (40°C).

What is the most humid month?

The months with the highest humidity are February and December, with an average relative humidity of 81%.

What is the average humidity in December?

The average relative humidity in December in Port Vincent is 81%.

How much does it rain in December?

In Port Vincent, during December, the rain falls for 10.7 days and regularly aggregates up to 1.3" (33mm) of precipitation.

When it does not snow?

February through December are months without snowfall.

Does it snow in December?

In Port Vincent, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days?

With an average of 10h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day 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 6:42 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:13 pm CST.

What is the month with the least sunshine?

The month with the least sunshine in Port Vincent is December, with an average of 5.1h of sunshine.

How many hours of sunshine does Port Vincent have in December?

In December, the average sunshine duration is 5.1h.

What is the month with the lowest UV index?

With an average maximum UV index of 3, December is the month with the lowest UV index.

What is the UV index intensity in December?

In Port Vincent, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Port Vincent, LA

Average temperature in December - Port Vincent, LA
  • Average high temperature in December: 62.2°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in December: 47.7°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

Average pressure in December
Port Vincent, LA

Average pressure in December - Port Vincent, LA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Port Vincent, LA

Average wind speed in December - Port Vincent, LA
  • Average wind speed in December: 6.7mph

The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in December
Port Vincent, LA

Average humidity in December - Port Vincent, LA
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Port Vincent, LA

Average rainfall in December - Port Vincent, LA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is July (3.03").
The driest months (with the least rainfall) are March and November (0.98").

Average rainfall days in December
Port Vincent, LA

Average rainfall days in December - Port Vincent, LA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in December
Port Vincent, LA

Average snowfall in December - Port Vincent, LA
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.04").
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
Port Vincent, LA

Average snowfall days in December - Port Vincent, LA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Port Vincent, LA

Average daylight in December / Average sunshine in December - Port Vincent, LA
  • 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December
Port Vincent, LA

Average sunshine days in December - Port Vincent, LA
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (9.3 days).

Average UV index in December
Port Vincent, LA

Average UV index in December - Port Vincent, LA
  • Average UV index in December: 3

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Port Vincent, LA

Average cloud cover in December - Port Vincent, LA
  • Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in December
Port Vincent, LA

Average visibility in December - Port Vincent, LA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, June, July, August, October, November and December (6mi).
The months with the lowest visibility are March, April, May and September (5mi).

Port Vincent, Louisiana, USA

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