December Weather in Seabrook, United States

Last updated: June 24, 2025

In December, the average temperature in Seabrook, United States is a brisk 5°C (41°F). Expect temperatures to range from a chilly -10°C (14°F) at their lowest to a pleasant 20°C (68°F) at their highest. With an overall precipitation amount of 92 mm (3.6 in) spread over 10 days, and an average humidity level of 84%, be prepared for a truly atmospheric experience!

December Temperature in Seabrook

In December in Seabrook, the average temperature is 5°C (41°F). Maximums can reach 20°C (68°F) and minimums can drop to as low as -10°C (14°F). Be prepared for a mix of mild and chilly weather during your travels, so pack accordingly.

December Weather in Seabrook: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Seabrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seabrook, December typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (68°F) and lows dropping to around -10°C (14°F).

Data source: Temperature data for Seabrook generated using information from the Copernicus Climate Change Service.

December Precipitation in Seabrook

In Seabrook in December, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

December Precipitation Trends in Seabrook

The chart displays monthly precipitation patterns in Seabrook, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Seabrook, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Seabrook

In Seabrook in December humidity is 84%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through the cold, heavy air that clings to your skin.

December Average Humidity in Seabrook

This chart illustrates the average monthly humidity levels in Seabrook, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Seabrook is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Seabrook

In Seabrook in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Seabrook, you can check the information here.

Maximum UV Index Levels in Seabrook for December

The chart shows the monthly maximum UV Index (UVI) for Seabrook in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Seabrook typically reaches 3, which falls under the moderate exposure category.

Data source: Seabrook December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Seabrook Compares to Other Months

Weather in Seabrook varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Seabrook, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Seabrook, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	61 mm (2.4 inches)	84%	moderate
February Weather	5°C (41°F)	99 mm (3.9 inches)	83%	moderate
March Weather	8°C (47°F)	86 mm (3.4 inches)	83%	high
April Weather	14°C (57°F)	101 mm (4.0 inches)	81%	very high
May Weather	19°C (66°F)	134 mm (5.3 inches)	78%	very high
June Weather	24°C (75°F)	118 mm (4.7 inches)	79%	very high
July Weather	27°C (80°F)	191 mm (7.5 inches)	74%	very high
August Weather	25°C (78°F)	168 mm (6.6 inches)	72%	very high
September Weather	22°C (72°F)	107 mm (4.2 inches)	75%	very high
October Weather	17°C (63°F)	115 mm (4.5 inches)	81%	high
November Weather	9°C (48°F)	79 mm (3.1 inches)	85%	moderate
December Weather	5°C (41°F)	92 mm (3.6 inches)	84%	moderate