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December Weather in Newport, United States

Last updated: June 24, 2025

In December, the average temperature in Newport, United States is a cool 6°C (43°F). Expect temperatures to swing from a chilly -14°C (7°F) to a pleasant 23°C (74°F). With average precipitation at 126 mm (4.9 in) over 12 days, and humidity hovering around a high 88%, it's a perfect time to prepare for diverse weather conditions!

December Temperature in Newport

In December in Newport, the average temperature is 6°C (43°F). Maximums can reach 23°C (74°F), while minimums can drop as low as -14°C (7°F). Be prepared for a wide range of temperatures during your travels, making it essential to pack accordingly.

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 6°C (43°F), with highs reaching up to 23°C (74°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec394550576773777572624743
Data source: Temperature data for Newport generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Newport

In Newport in December, the precipitation amount is 126 mm (4.9 in) spread over a span of 12 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 126 mm (4.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec881441371271101011001118712276126
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Newport

In Newport in December, humidity is 88%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and prompting you to seek warm shelter frequently.

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.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)88 mm (3.5 inches)86%moderate
February Weather7°C (45°F)144 mm (5.7 inches)86%high
March Weather10°C (51°F)137 mm (5.4 inches)86%very high
April Weather14°C (58°F)126 mm (5.0 inches)82%very high
May Weather19°C (67°F)110 mm (4.3 inches)85%extreme
June Weather23°C (73°F)101 mm (4.0 inches)85%extreme
July Weather25°C (77°F)100 mm (3.9 inches)83%extreme
August Weather24°C (76°F)111 mm (4.4 inches)76%very high
September Weather22°C (72°F)87 mm (3.4 inches)76%very high
October Weather16°C (62°F)122 mm (4.8 inches)80%high
November Weather8°C (48°F)76 mm (3.0 inches)88%moderate
December Weather6°C (43°F)126 mm (4.9 inches)88%moderate

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