December weather forecast
Seabrook, LA

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Weather in December

December, the first month of the winter in Seabrook, is also an enjoyable month, with an average temperature fluctuating between 52°F (11.1°C) and 63.1°F (17.3°C).

Temperature

With the onset of December, Seabrook's average high-temperature slightly adjusts, moderately receding from November's pleasant 68.5°F (20.3°C) to an enjoyable 63.1°F (17.3°C). Seabrook records an average low of 52°F (11.1°C) throughout the nights in December.

Humidity

The most humid month in Seabrook is December, with an average relative humidity of 77%.

Rainfall

In Seabrook, in December, during 14.1 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. In Seabrook, Louisiana, during the entire year, the rain falls for 178.6 days and collects up to 44.25" (1124mm) of precipitation.

Daylight

With an average of 10h and 18min of daylight, December has the shortest days of the year in Seabrook.
On the first day of the month, sunrise is at 6:38 am and sunset at 4:59 pm. On the last day of December, sunrise is at 6:55 am and sunset at 5:10 pm CST.

Sunshine

December has the least sunshine of the year in Seabrook, with an average of 5h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 3 during December leads to these instructions:
Ensure safety - Sun damage prevention is strongly urged. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What are December temperatures in Seabrook?

The high-temperature, in December, in Seabrook, is 63.1°F (17.3°C), while the low-temperature averages to 52°F (11.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 98.6°F (37°C).

What is the most humid month in Seabrook?

The most humid month in Seabrook, Louisiana, is December, with an average relative humidity of 77%.

What is the average humidity in December in Seabrook?

In Seabrook, Louisiana, the average relative humidity in December is 77%.

How many days does it rain in December in Seabrook?

In December, the rain falls for 14.1 days. Throughout December, 3.82" (97mm) of precipitation is accumulated.

What is the month with the shortest days in Seabrook?

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

How many hours of daylight does Seabrook have in December?

In Seabrook, the average day length in December is 10h and 15min.

What time are sunrise and sunset in December in Seabrook?

On the first day of December in Seabrook, Louisiana, sunrise is at 6:38 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:10 pm CST.

What is the month with the least sunshine in Seabrook?

The month with the least sunshine is December, with an average of 5h of sunshine.

How long on average sun shines in December in Seabrook?

In Seabrook, Louisiana, the average sunshine duration in December is 5h.

What is the month with the lowest UV index in Seabrook?

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 Seabrook?

In Seabrook, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Seabrook, LA

Average temperature in December - Seabrook, LA
  • Average high temperature in December: 63.1°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in December: 52°F

The months with the highest average low temperature are July and August (79.3°F).
The coldest month (with the lowest average low temperature) is January (48°F).

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Average pressure in December
Seabrook, LA

Average pressure in December - Seabrook, LA
  • Average pressure in December: 30.12"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).

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Average wind speed in December
Seabrook, LA

Average wind speed in December - Seabrook, LA
  • Average wind speed in December: 9.5mph

The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in December
Seabrook, LA

Average humidity in December - Seabrook, LA
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Seabrook, LA

Average rainfall in December - Seabrook, LA
  • Average rainfall in December: 3.82"

The wettest month (with the highest rainfall) is July (6.1").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in December
Seabrook, LA

Average rainfall days in December - Seabrook, LA
  • Average rainfall days in December: 14.1 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (8.5 days).

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Average daylight in December /
Average sunshine in December
Seabrook, LA

Average daylight in December / Average sunshine in December - Seabrook, 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 0min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in December
Seabrook, LA

Average sunshine days in December - Seabrook, LA
  • Average sunshine days in December: 15 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (7.1 days).

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Average UV index in December
Seabrook, LA

Average UV index in December - Seabrook, 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).

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Average cloud cover in December
Seabrook, LA

Average cloud cover in December - Seabrook, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 25).

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Average visibility in December
Seabrook, LA

Average visibility in December - Seabrook, 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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Seabrook, Louisiana, USA

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