December weather forecast
Port Fourchon, LA

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Weather in December

December in Port Fourchon brings the full experience of winter. The month typically displays the coldest temperatures of the year. The cloud cover and shorter daylight hours combine to bring a colder and festive feel to the town. Despite the transition from fall to winter, December continues to hold onto a considerable amount of rainfall. Indeed, with an average high of 64.9°F (18.3°C), December holds the banner of Port Fourchon's coldest month.

Temperature

December reports an average high-temperature of an enjoyable 64.9°F (18.3°C), slightly varied from November's 69.8°F (21°C). During December, Port Fourchon perceives a slight decrease in temperature from daytime highs, settling at an average low of 56.7°F (13.7°C).

Humidity

February and December, with an average relative humidity of 78%, are the most humid months in Port Fourchon.

Rainfall

In Port Fourchon, during December, the rain falls for 11.9 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Port Fourchon, Louisiana, during the entire year, the rain falls for 151.9 days and collects up to 22.01" (559mm) of precipitation.

Snowfall

In Port Fourchon, Louisiana, snow does not fall in February through December.

Daylight

The month with the shortest days is December, with an average of 10h and 18min of daylight.
On the first day of the month, sunrise is at 6:37 am and sunset at 5:02 pm. On the last day of December, in Port Fourchon, sunrise is at 6:54 am and sunset at 5:13 pm CST.

Sunshine

The month with the least sunshine in Port Fourchon, Louisiana, is December, with an average of 5.4h of sunshine.

UV index

January and December, with an average maximum UV index of 4, are months with the lowest UV index in Port Fourchon, Louisiana. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 4 in December translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are December temperatures in Port Fourchon?

During December, Port Fourchon experiences an average high-temperature of 64.9°F (18.3°C) and a low-temperature of 56.7°F (13.7°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 93.2°F (34°C).

What is the most humid month in Port Fourchon?

February and December, with an average relative humidity of 78%, are most humid months in Port Fourchon, Louisiana.

What is the average humidity in December in Port Fourchon?

In December, the average relative humidity in Port Fourchon is 78%.

How many days does it rain in December in Port Fourchon?

In Port Fourchon, in December, it is raining for 11.9 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Port Fourchon?

February through December are months without snowfall in Port Fourchon, Louisiana.

Does it snow in Port Fourchon in December?

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

What is the month with the shortest days in Port Fourchon?

December has the shortest days of the year, with an average of 10h and 18min of daylight.

How many hours of daylight does Port Fourchon have in December?

The average day length in December is 10h and 19min.

When is the sunrise / sunset in December in Port Fourchon?

In December, on the first day of the month, sunrise is at 6:37 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 5:13 pm CST.

What is the month with the least sunshine in Port Fourchon?

With an average of 5.4h of sunshine, December has the least sunshine of the year in Port Fourchon.

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

The average sunshine duration in December is 5.4h.

What are the months with the lowest UV index in Port Fourchon?

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

What is the UV index reading in December in Port Fourchon?

The average daily maximum UV index in December in Port Fourchon, Louisiana, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Port Fourchon, LA

Average temperature in December - Port Fourchon, LA
  • Average high temperature in December: 64.9°F

The warmest months (with the highest average high temperature) are July and August (86.9°F).
The month with the lowest average high temperature is January (61.7°F).

  • Average low temperature in December: 56.7°F

The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (53.1°F).

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Average pressure in December
Port Fourchon, LA

Average pressure in December - Port Fourchon, LA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in December
Port Fourchon, LA

Average wind speed in December - Port Fourchon, LA
  • Average wind speed in December: 12.2mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity in December
Port Fourchon, LA

Average humidity in December - Port Fourchon, LA
  • Average humidity in December: 78%

The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Port Fourchon, LA

Average rainfall in December - Port Fourchon, LA
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is August (4.72").
The driest months (with the least rainfall) are February and April (0.87").

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Average rainfall days in December
Port Fourchon, LA

Average rainfall days in December - Port Fourchon, LA
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall days in December
Port Fourchon, LA

Average snowfall days in December - Port Fourchon, LA
  • 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).

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

Average daylight in December / Average sunshine in December - Port Fourchon, LA
  • Average daylight in December: 10h and 2min

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 2min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in December
Port Fourchon, LA

Average sunshine days in December - Port Fourchon, LA
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is August (6.5 days).

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Average UV index in December
Port Fourchon, LA

Average UV index in December - Port Fourchon, LA
  • Average UV index in December: 4

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 December (UV index 4).

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Average cloud cover in December
Port Fourchon, LA

Average cloud cover in December - Port Fourchon, LA
  • 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 May (Cloud cover 23).

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Average visibility in December
Port Fourchon, LA

Average visibility in December - Port Fourchon, LA
  • 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).

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Port Fourchon, Louisiana, USA

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