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December Weather in Newmarket, Ireland

Last updated: August 23, 2025

In December, the average temperature in Newmarket, Ireland hovers around 7°C (44°F). Expect chilly days with minimums dipping to -3°C (27°F) and highs reaching up to 14°C (57°F). Be prepared for wet weather, as 114 mm (4.5 in) of precipitation is likely over about 18 days, with humidity levels averaging a brisk 89%.

December Temperature in Newmarket

In December in Newmarket, the average temperature is 7°C (44°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -3°C (27°F). Be sure to pack both warm and light layers to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Newmarket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newmarket, December typically has an average temperature of 7°C (44°F), with highs reaching up to 14°C (57°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec424343475256595855504644
Data source: Temperature data for Newmarket 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 Newmarket

In Newmarket in December, the precipitation amount is 114 mm (4.5 in) over the course of 18 days.

December Precipitation Trends in Newmarket

The chart displays monthly precipitation patterns in Newmarket, 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 Newmarket, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec6711098677365701067810084114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Newmarket

In Newmarket 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 Newmarket

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

In Newmarket 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 Newmarket.

Maximum UV Index Levels in Newmarket for December

The chart shows the monthly maximum UV Index (UVI) for Newmarket 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 Newmarket typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Newmarket 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 Newmarket Compares to Other Months

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

This table compares monthly weather conditions in Newmarket, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)67 mm (2.6 inches)88%low
February Weather6°C (43°F)110 mm (4.3 inches)88%low
March Weather6°C (44°F)98 mm (3.9 inches)87%moderate
April Weather8°C (47°F)67 mm (2.6 inches)86%moderate
May Weather11°C (52°F)73 mm (2.9 inches)83%high
June Weather13°C (57°F)65 mm (2.6 inches)83%very high
July Weather15°C (60°F)70 mm (2.7 inches)85%very high
August Weather15°C (59°F)106 mm (4.2 inches)85%high
September Weather13°C (56°F)78 mm (3.1 inches)88%moderate
October Weather10°C (51°F)100 mm (3.9 inches)91%moderate
November Weather8°C (46°F)84 mm (3.3 inches)92%low
December Weather7°C (44°F)114 mm (4.5 inches)89%low

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