December Weather in Newport, United States

Last updated: June 24, 2025

In December, the average temperature in Newport, United States hovers around 8°C (46°F), with a minimum dip to -11°C (13°F) and a potential high of 26°C (78°F). Expect about 121 mm (4.8 in) of precipitation over 9 days, contributing to an average humidity of 88%. Whether you're bracing for the chill or enjoying the occasional warmth, pack accordingly!

December Temperature in Newport

In December in Newport, the average temperature is 8°C (46°F), with maximums reaching up to 26°C (78°F) and minimums dropping as low as -11°C (13°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their visit.

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

The chart illustrates December temperature patterns in Newport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newport, December typically has an average temperature of 8°C (46°F), with highs reaching up to 26°C (78°F) and lows dropping to around -11°C (13°F).

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

December Precipitation in Newport

In Newport in December, the precipitation amount is 121 mm (4.8 in) over the course of 9 days.

December Precipitation Trends in Newport

The chart displays monthly precipitation patterns in Newport, 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 Newport, December typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 9 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 Newport

In Newport in December, humidity is 88%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel much more uncomfortable than the temperature alone would suggest.

December Average Humidity in Newport

This chart illustrates the average monthly humidity levels in Newport, 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 Newport 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 Newport

In Newport 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 Newport, you can check the information here.

Maximum UV Index Levels in Newport for December

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

Data source: Newport 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 Newport Compares to Other Months

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

This table compares monthly weather conditions in Newport, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	93 mm (3.7 inches)	84%	moderate
February Weather	7°C (44°F)	157 mm (6.2 inches)	83%	high
March Weather	12°C (54°F)	146 mm (5.8 inches)	81%	very high
April Weather	16°C (61°F)	156 mm (6.1 inches)	81%	very high
May Weather	22°C (71°F)	159 mm (6.3 inches)	83%	extreme
June Weather	26°C (79°F)	95 mm (3.7 inches)	83%	extreme
July Weather	28°C (82°F)	109 mm (4.3 inches)	81%	extreme
August Weather	26°C (80°F)	110 mm (4.3 inches)	74%	very high
September Weather	24°C (76°F)	86 mm (3.4 inches)	71%	very high
October Weather	18°C (64°F)	123 mm (4.8 inches)	76%	high
November Weather	10°C (50°F)	73 mm (2.9 inches)	84%	moderate
December Weather	8°C (46°F)	121 mm (4.8 inches)	88%	moderate