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December Weather in Newport, United States

Last updated: June 24, 2025

In December, the average temperature in Newport, United States hovers around 12°C (54°F), with a minimum of -1°C (31°F) and a maximum reaching 22°C (72°F). Expect about 148 mm (5.8 in) of precipitation over approximately 10 days, contributing to an average humidity of 84%. Be prepared for a mix of cool days and damp conditions!

December Temperature in Newport

In December in Newport, the average temperature is 12°C (54°F). Maximum temperatures can reach 22°C (72°F), while minimum temperatures can drop as low as -1°C (31°F). Be sure to pack layers to stay comfortable in varying weather conditions!

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 12°C (54°F), with highs reaching up to 22°C (72°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec495355637177818077705953
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 total precipitation amount is 148 mm (5.8 in) recorded over a span of 10 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 148 mm (5.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec821368310711415715419121482108148
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 84%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%81%80%80%81%82%83%83%80%80%83%84%
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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Newport for better planning.

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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109854
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 Weather10°C (50°F)82 mm (3.2 inches)84%moderate
February Weather12°C (53°F)136 mm (5.4 inches)81%high
March Weather13°C (56°F)83 mm (3.3 inches)80%very high
April Weather17°C (63°F)107 mm (4.2 inches)80%very high
May Weather22°C (71°F)114 mm (4.5 inches)81%extreme
June Weather25°C (77°F)157 mm (6.2 inches)82%extreme
July Weather27°C (81°F)154 mm (6.0 inches)83%extreme
August Weather27°C (80°F)191 mm (7.5 inches)82%very high
September Weather25°C (77°F)214 mm (8.4 inches)80%very high
October Weather21°C (70°F)82 mm (3.2 inches)79%very high
November Weather15°C (59°F)108 mm (4.3 inches)83%moderate
December Weather12°C (54°F)148 mm (5.8 inches)84%moderate

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