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December Weather in Newport, Ireland

Last updated: August 23, 2025

In December, the average temperature in Newport, Ireland hovers around 7°C (44°F). With minimums plummeting to -2°C (28°F) and highs reaching 13°C (55°F), this season brings a range of atmospheric experiences. Expect 122 mm (4.8 in) of precipitation spread across 21 days, contributing to a notably high average humidity of 89%. Prepare for a chilly, damp environment that feels as crisp as it looks!

December Temperature in Newport

In December in Newport, the average temperature is 7°C (44°F), with maximums reaching 13°C (55°F) and minimums dropping as low as -2°C (28°F), making it essential for travelers to pack accordingly for fluctuating 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 7°C (44°F), with highs reaching up to 13°C (55°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec434344485256595855504644
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 122 mm (4.8 in) during a total of 21 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 122 mm (4.8 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec9113411768829510015296134117122
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 89%. With an average temperature of 7°C (44°F), this humidity feels like a dense fog enveloping you, making every step sticky and cumbersome, and presenting a challenge for travelers who may find it hard to stay dry and comfortable while exploring.

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 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%86%83%83%85%85%88%91%92%89%
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 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Newport.

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 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
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 Weather6°C (43°F)91 mm (3.6 inches)88%low
February Weather6°C (43°F)134 mm (5.3 inches)88%low
March Weather7°C (44°F)117 mm (4.6 inches)87%moderate
April Weather9°C (48°F)68 mm (2.7 inches)86%moderate
May Weather11°C (52°F)82 mm (3.2 inches)83%high
June Weather13°C (56°F)95 mm (3.7 inches)83%very high
July Weather15°C (59°F)100 mm (4.0 inches)85%very high
August Weather15°C (58°F)152 mm (6.0 inches)85%high
September Weather13°C (56°F)96 mm (3.8 inches)88%moderate
October Weather10°C (51°F)134 mm (5.3 inches)91%moderate
November Weather8°C (46°F)117 mm (4.6 inches)92%low
December Weather7°C (44°F)122 mm (4.8 inches)89%low

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