Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
A moderate decline in average high-temperatures is noted in December, moving from an agreeable 68.5°F (20.3°C) in November to a refreshing 63.1°F (17.3°C). Throughout the month of December, Seabrook reports a steady low-temperature average of 52°F (11.1°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Seabrook, in December, during 14.1 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. Throughout the year, in Seabrook, there are 178.6 rainfall days, and 44.25" (1124mm) of precipitation is accumulated.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 6:38 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, with an average of 5h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in Seabrook in December?
What is the month with the shortest days?
What is the average length of the day in December in Seabrook?
What time are sunrise and sunset in December in Seabrook?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Seabrook?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).
Seabrook, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location