December weather forecast
Seabrook, TX

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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 ranging between min 52.2°F (11.2°C) and max 63°F (17.2°C).

Temperature

December witnesses a gentle descent in average high-temperature, descending from November's pleasant 69.4°F (20.8°C) to a comfortable 63°F (17.2°C). Throughout the month of December, Seabrook reports a steady low-temperature average of 52.2°F (11.2°C).

Humidity

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

Rainfall

In Seabrook, in December, it is raining for 7.1 days, with typically 0.51" (13mm) of accumulated precipitation. In Seabrook, during the entire year, the rain falls for 122.9 days and collects up to 9.72" (247mm) of precipitation.

Snowfall

Months with snowfall are January, September and December. The months with the most snowfall days are January, September and December, with an average of 0.1 snowfall days.

Ocean temperature

In Seabrook, the average seawater temperature in December is 60.4°F (15.8°C).
Note: In water with a temperature of 60.4°F (15.8°C), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of December, sunrise is at 6:57 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:32 pm CST.

Sunshine

The month with the least sunshine in Seabrook is December, with an average of 4.7h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The high-temperature, in December, in Seabrook, is 63°F (17.2°C), while the low-temperature averages to 52.2°F (11.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 98.6°F (37°C).

What is the average humidity in December?

In December, the average relative humidity is 77%.

How much does it rain in December?

In Seabrook, in December, it is raining for 7.1 days, with typically 0.51" (13mm) of accumulated precipitation.

When does it snow the most?

The months with the most snowfall days in Seabrook, Texas, are January, September and December, with an average of 0.1 snowfall days.

When does it start to snow?

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

How cold is the water in December?

In Seabrook, in December, the average water temperature is 60.4°F (15.8°C). Swimming in 60.4°F (15.8°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?

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

How many hours of daylight does Seabrook have in December?

The average day length in December is 10h and 17min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:32 pm CST.

What is the month with the least sunshine?

December has the least sunshine of the year in Seabrook, with an average of 4.7h of sunshine.

How long on average sun shines in December?

In Seabrook, the average sunshine duration in December is 4.7h.

When is the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Seabrook, TX

Average temperature in December - Seabrook, TX
  • Average high temperature in December: 63°F

The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 52.2°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

Average pressure in December
Seabrook, TX

Average pressure in December - Seabrook, TX
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Seabrook, TX

Average wind speed in December - Seabrook, TX
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).

Average humidity in December
Seabrook, TX

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

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Seabrook, TX

Average rainfall in December - Seabrook, TX
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is September (1.5").
The driest months (with the least rainfall) are February and March (0.31").

Average rainfall days in December
Seabrook, TX

Average rainfall days in December - Seabrook, TX
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is September (15.9 days).
The month with the least rainy days is February (6.3 days).

Average snowfall days in December
Seabrook, TX

Average snowfall days in December - Seabrook, TX
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January, September and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).

Average sea temperature in December
Seabrook, TX

Average sea temperature in December - Seabrook, TX
  • Average sea temperature in December: 60.4°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.8°F).

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

Average daylight in December / Average sunshine in December - Seabrook, TX
  • 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: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in December
Seabrook, TX

Average sunshine days in December - Seabrook, TX
  • Average sunshine days in December: 21.2 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is September (10.3 days).

Average UV index in December
Seabrook, TX

Average UV index in December - Seabrook, TX
  • 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, TX

Average cloud cover in December - Seabrook, TX
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in December
Seabrook, TX

Average visibility in December - Seabrook, TX
  • 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, Texas, USA

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