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December Weather in Holycross, Ireland

Last updated: August 23, 2025

In December, the average temperature in Holycross, Ireland hovers around 6°C (43°F). Expect a minimum chill of -6°C (21°F) and a maximum warmth of 14°C (57°F). With 107 mm (4.2 in) of precipitation spread over 16 days, this month is quite rainy, accompanied by a high average humidity of 89%. Stay prepared for a damp and cool atmosphere!

December Temperature in Holycross

In December in Holycross, the average temperature is 6°C (43°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -6°C (21°F). Be sure to pack layers and prepare for a mix of chilly and mild weather during your travels.

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

The chart illustrates December temperature patterns in Holycross, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Holycross, December typically has an average temperature of 6°C (43°F), with highs reaching up to 14°C (57°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec424343475257605955504543
Data source: Temperature data for Holycross 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 Holycross

In Holycross in December, the precipitation amount reaches 107 mm (4.2 in) during a span of 16 days.

December Precipitation Trends in Holycross

The chart displays monthly precipitation patterns in Holycross, 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 Holycross, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec56100875763677195648984107
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Holycross

In Holycross in December, humidity is 89%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable and energy-draining, often leading travelers to seek shelter indoors or dress in layers to cope with the cold and moist air.

December Average Humidity in Holycross

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

In Holycross 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 Holycross.

Maximum UV Index Levels in Holycross for December

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

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

This table compares monthly weather conditions in Holycross, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)56 mm (2.2 inches)88%low
February Weather6°C (43°F)100 mm (3.9 inches)88%low
March Weather6°C (44°F)87 mm (3.4 inches)87%moderate
April Weather8°C (47°F)57 mm (2.2 inches)86%moderate
May Weather11°C (52°F)63 mm (2.5 inches)83%high
June Weather14°C (57°F)67 mm (2.6 inches)83%very high
July Weather16°C (60°F)71 mm (2.8 inches)85%very high
August Weather15°C (59°F)95 mm (3.7 inches)85%high
September Weather13°C (56°F)64 mm (2.5 inches)88%moderate
October Weather10°C (50°F)89 mm (3.5 inches)91%moderate
November Weather7°C (45°F)84 mm (3.3 inches)92%low
December Weather6°C (43°F)107 mm (4.2 inches)89%low

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