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December Weather in Roundwood, Ireland

Last updated: August 23, 2025

In December, the average temperature in Roundwood, Ireland hovers around 6°C (43°F). You can expect a minimum of -4°C (26°F) and a maximum of 13°C (55°F). Be prepared for a bit of rain, with 111 mm (4.4 in) of precipitation spread over 15 days. The air tends to be quite damp, boasting an average humidity of 84%.

December Temperature in Roundwood

In December in Roundwood, the average temperature is 6°C (43°F). The maximum can reach 13°C (55°F) and the minimum can be as low as -4°C (26°F). Visitors should be prepared for chilly weather and pack accordingly, as temperatures can vary significantly throughout the day.

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

The chart illustrates December temperature patterns in Roundwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roundwood, December typically has an average temperature of 6°C (43°F), with highs reaching up to 13°C (55°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec414243465156605955504543
Data source: Temperature data for Roundwood 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 Roundwood

In Roundwood in December, the total precipitation amount is 111 mm (4.4 in) spread over 15 days.

December Precipitation Trends in Roundwood

The chart displays monthly precipitation patterns in Roundwood, 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 Roundwood, December typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec619490588381851108193111111
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Roundwood

In Roundwood in December, humidity is 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.

December Average Humidity in Roundwood

This chart illustrates the average monthly humidity levels in Roundwood, 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 Roundwood is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Roundwood

In Roundwood 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 Roundwood.

Maximum UV Index Levels in Roundwood for December

The chart shows the monthly maximum UV Index (UVI) for Roundwood 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 Roundwood typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Roundwood 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 Roundwood Compares to Other Months

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

This table compares monthly weather conditions in Roundwood, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)61 mm (2.4 inches)85%low
February Weather6°C (42°F)94 mm (3.7 inches)86%low
March Weather6°C (43°F)90 mm (3.5 inches)86%moderate
April Weather8°C (46°F)57 mm (2.3 inches)85%moderate
May Weather11°C (51°F)83 mm (3.3 inches)83%high
June Weather13°C (57°F)81 mm (3.2 inches)85%very high
July Weather15°C (60°F)85 mm (3.3 inches)86%very high
August Weather15°C (59°F)110 mm (4.3 inches)85%high
September Weather13°C (55°F)81 mm (3.2 inches)86%moderate
October Weather10°C (50°F)93 mm (3.7 inches)87%moderate
November Weather7°C (45°F)110 mm (4.3 inches)86%low
December Weather6°C (43°F)111 mm (4.4 inches)84%low

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