December Weather in Sandy Hook, United States

Last updated: June 24, 2025

In December, the average temperature in Sandy Hook, United States hovers around 5°C (41°F), offering a cool yet refreshing atmosphere. Temperatures can dip as low as -12°C (10°F) and rise to a maximum of 20°C (69°F), showcasing a delightful range of conditions. Expect about 124 mm (4.9 in) of precipitation over 10 days, accompanied by a high average humidity of 88%. This combination makes for a captivating month in Sandy Hook!

December Temperature in Sandy Hook

In December in Sandy Hook, the average temperature is around 5°C (41°F), with maximums potentially reaching 20°C (69°F) and minimums dipping as low as -12°C (10°F). This varied climate makes it essential for travelers to pack accordingly for both mild and cold weather conditions.

December Weather in Sandy Hook: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sandy Hook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sandy Hook, December typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (69°F) and lows dropping to around -12°C (10°F).

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

December Precipitation in Sandy Hook

In Sandy Hook in December, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.

December Precipitation Trends in Sandy Hook

The chart displays monthly precipitation patterns in Sandy Hook, 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 Sandy Hook, December typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Sandy Hook

In Sandy Hook in December humidity is 88%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making it essential to bundle up for your travels, as every breath feels heavy in the air and the landscape appears cloaked in a misty shroud.

December Average Humidity in Sandy Hook

This chart illustrates the average monthly humidity levels in Sandy Hook, 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 Sandy Hook is approximately 88%, 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 Sandy Hook

In Sandy Hook 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 Sandy Hook, you can check the information here.

Maximum UV Index Levels in Sandy Hook for December

The chart shows the monthly maximum UV Index (UVI) for Sandy Hook 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 Sandy Hook typically reaches 3, which falls under the moderate exposure category.

Data source: Sandy Hook 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 Sandy Hook Compares to Other Months

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

This table compares monthly weather conditions in Sandy Hook, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	96 mm (3.8 inches)	88%	moderate
February Weather	5°C (41°F)	142 mm (5.6 inches)	88%	moderate
March Weather	9°C (48°F)	119 mm (4.7 inches)	87%	high
April Weather	13°C (56°F)	129 mm (5.1 inches)	84%	very high
May Weather	19°C (67°F)	128 mm (5.0 inches)	84%	very high
June Weather	23°C (73°F)	163 mm (6.4 inches)	83%	very high
July Weather	25°C (78°F)	116 mm (4.6 inches)	79%	very high
August Weather	24°C (75°F)	134 mm (5.3 inches)	66%	very high
September Weather	21°C (71°F)	110 mm (4.3 inches)	67%	very high
October Weather	16°C (61°F)	111 mm (4.4 inches)	76%	high
November Weather	8°C (46°F)	75 mm (2.9 inches)	89%	moderate
December Weather	5°C (41°F)	124 mm (4.9 inches)	88%	moderate