December Weather in Trim, Ireland

Last updated: March 17, 2025

In December, Trim, Ireland experiences a diverse array of weather conditions, with temperatures ranging from a maximum of 14°C (57°F) to a minimum of -4°C (25°F), and an average of 6°C (44°F). The region receives substantial rainfall, totaling 85 mm (3.3 in) over approximately 15 days, contributing to its high humidity levels at 84%. These conditions create a crisp, often damp atmosphere typical of an Irish winter, where layers and waterproof gear become essential for outdoor activities. Whether exploring the historic sites or enjoying cozy local eateries, visitors should prepare for the charming, yet unpredictable essence of Trim's December weather.

December Temperature in Trim

In Trim, Ireland, December welcomes the winter season with chilly temperatures that range from a minimum of -4°C (25°F) to a milder high of 14°C (57°F). The average temperature hovers around 6°C (44°F), highlighting a drop from the relatively crisp autumn months prior. As the year draws to a close, residents and visitors experience a significant chill, making cozy indoor settings all the more inviting. This month displays a clear transition into the heart of winter, characterized by shorter days and frosty mornings, setting the perfect backdrop for festive cheer and holiday gatherings. Whether you're wrapped up in warm attire or enjoying the season's atmosphere, December in Trim offers a unique charm that's quintessentially Irish.

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

The chart illustrates December temperature patterns in Trim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424345485358616056514643
Data source: Temperature data for Trim generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Trim

December in Trim, Ireland, marks a notable uptick in precipitation, with 85 mm (3.3 in) of rainfall across 15 days. This increase reflects the trend of intensifying wet weather as the year draws to a close, contrasting with the lower averages seen in earlier months like April and May. As winter takes hold, December's rainfall is a reminder of the region's damp climate, often reaching its peak during the final month of the year. With an average of 15 rainy days, the month stands out for its consistent, albeit heavy, showers, laying a foundation for lush landscapes as the new year begins. The escalating precipitation patterns from November's 80 mm (3.2 in) further underline Ireland’s characteristic variability, emphasizing the importance of preparedness for the festive season.

December Precipitation Trends in Trim

The chart displays monthly precipitation patterns in Trim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec517877456572689466748085
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Trim

In December, Trim, Ireland, experiences a slight drop in humidity to 84%, continuing the trend of relatively high moisture levels throughout the year. The humidity fluctuates minimally from January to November, hovering in the range of 85% to 87%, with peaks notably in October and November. This consistent humidity reflects Ireland's maritime climate, where moisture-laden air impacts daily weather. As the year winds down, December's lower humidity hints at a subtle seasonal shift, setting the stage for the cooler, crisp air of winter.

December Average Humidity in Trim

This chart illustrates the average monthly humidity levels in Trim, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
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 Trim

In December, Trim, Ireland experiences a low UV Index of 1, marking a significant shift as the year comes to a close. This level indicates minimal risk of harm from unprotected sun exposure, with a burn time of 45 minutes. Following the trend of gradual decreases from the summer's very high readings of 8 in July and June, December brings a reprieve from the stronger rays, aligning with the typical seasonal pattern in Ireland. As the daylight hours shorten, residents can enjoy outdoor activities with peace of mind, knowing they can safely bask in the gentle winter sunlight. For more detailed information on UV exposure throughout the year, visit Trim UV Index.

Maximum UV Index Levels in Trim for December

The chart shows the monthly maximum UV Index (UVI) for Trim 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Trim 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.

December Sunshine in Trim

In Trim, Ireland, the seasonal rhythm of sunshine paints a captivating picture, especially as December arrives with its modest 84 hours of sunlight. This marks a sharp decline from the vibrant 362 hours basked in during the peak of May, showcasing the natural ebb and flow of daylight throughout the year. The sun's embrace gradually fades after a generous summer, illustrated by the gradual decrease from 355 hours in June to November's paltry 108 hours. As December settles in, it signifies not just the onset of winter but also a reflective pause before the daylight begins to reclaim its strength in January. This trend underscores the unique charm of Trim's winter, where the crisp air and serene landscape juxtapose the fleeting sunlight, inviting both locals and visitors to appreciate its quiet beauty amidst the short days.

Monthly Sunshine Duration in Trim: December Highlighted

The December sunshine duration represents the total number of hours Trim experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec75h137h171h286h362h355h353h301h269h217h108h84h
Data source: Trim December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Trim During December

In Trim, Ireland, the likelihood of sunny weather takes a notable dip in December, with only a 20% chance of sun. This trend emerges as the year draws to a close, with December displaying one of the lowest probabilities for sunshine compared to earlier months. Following a slight uptick in November, the likelihood continues to decline, paralleling the cooler weather as winter firmly sets in. Interestingly, while spring months like April shine with a robust 39% chance, December's sparse sunlight serves as a reminder of the cozy, overcast days often associated with the festive season. As such, those visiting during this month should be prepared for the characteristic gray skies that blanket this charming town.

Percentage of Sunny Days in December in Trim

The chart illustrates the percentage of sunny days in Trim throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Trim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%20%18%39%32%21%27%22%19%17%25%20%
Data source: Trim December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Trim in December

In Trim, Ireland, December brings a notable dip in daylight hours, with only 7 hours of sunlight compared to the brighter months of spring and summer. As the year winds down, daylight gradually diminishes from a peak of 16 hours in June and July, followed by a gentle decline through the autumn. The transition is evident as daylight retreats from 15 hours in May to 14 hours in August, and then further to 12 hours in September, closing the year with a stark reduction in December. This seasonal shift underscores the contrast between the long, light-filled days of summer and the crisp, short days of winter, creating a cozy ambiance that invites reflection and hibernation during the darker months.

Average Daylight Hours in Trim for December

The chart illustrates the variation in daylight duration in Trim throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 6m9h 49m11h 54m14h 2m15h 54m16h 54m16h 22m14h 40m12h 37m10h 30m8h 35m7h 33m
Data source: Trim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Trim

As December rolls in, Trim, Ireland, experiences a wind speed of 4.2 m/s (9 mph), reflecting a steady increase in blustery conditions as the year draws to a close. Notably, this month mirrors the winds of March and October, suggesting a mild winter breeze that offers a refreshing contrast to the stillness of summer, where July recorded the calmest winds at only 2.6 m/s (6 mph). Transitioning from the relative calm seen earlier in the year, particularly in April and May, December's gusts mark a return to slightly more robust winds, hinting at the approaching storms and the season's chilly embrace. This trend of gradually increasing wind speeds, particularly in the late autumn months, prepares both the town and its visitors for the invigorating, picturesque charm of winter in Ireland.

Average December Wind Speed in Trim

The chart displays monthly wind speed patterns in Trim, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.85.14.23.03.43.42.63.23.14.14.04.2 m/s
Data source: Trim December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Trim Compares to Other Months

The weather in Trim changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Trim and find detailed weather information for every month.

December weather typically features a wider range of temperatures, with minimums of -4°C (25°F) and maximums reaching 14°C (57°F), while January is slightly chillier, with minimums dropping to -6°C (21°F) but maintaining a similar maximum of 14°C (58°F). Precipitation is more frequent in December, occurring on about 15 days and totaling 85 mm (3.3 in), compared to January, which sees less rain at 51 mm (2.0 in) over only 9 days. Humidity remains relatively consistent, with December at 84% and January slightly higher at 85%. For a closer look at January's weather specifics, you can visit Trim weather in January.

December and February share similar minimum temperatures, both dipping to -4°C (25°F), but February tends to be slightly warmer on average, with an average temperature of 6°C (43°F) compared to December’s average of 6°C (44°F). The max temperatures in February can reach up to 17°C (62°F), offering a more temperate feel compared to December's maximum of 14°C (57°F). Additionally, February experiences slightly less precipitation at 78 mm (3.1 in) over 14 days, compared to December's 85 mm (3.3 in) over 15 days, and its humidity is marginally higher at 86%. For more details on the weather patterns, you can check Trim weather in February.

In December, temperatures typically range from a low of -4°C (25°F) to a high of 14°C (57°F), with an average temperature of around 6°C (44°F). The month sees around 85 mm (3.3 in) of precipitation over approximately 15 days, with humidity levels hovering around 84%. In contrast, March presents a slightly warmer climate, with feelings of spring in the air. Temperatures range from a minimum of -5°C (23°F) to a maximum of 17°C (63°F), averaging 7°C (45°F). While March has slightly less precipitation at 77 mm (3.0 in) over about 16 days, humidity increases marginally to 86%. For more detailed insights, check out Trim weather in March.

December and April present contrasting weather experiences. In December, temperatures typically range from a chilly minimum of -4°C (25°F) to a maximum of 14°C (57°F), with an average of 6°C (44°F). The month sees significant precipitation, totaling 85 mm (3.3 in) over about 15 days, and humidity levels hover around 84%. In contrast, April brings milder conditions, with temperatures ranging from a low of -3°C (27°F) to a comfortable high of 22°C (71°F) and an average of 9°C (48°F). Precipitation decreases to 45 mm (1.8 in) over 10 days, while humidity remains relatively high at 85%. For a closer look at the weather specifics in April, you can visit Trim weather in April.

December weather is characterized by colder temperatures, with minimums dropping to -4°C (25°F) and average highs only reaching up to 14°C (57°F). It experiences significant precipitation, totaling 85 mm (3.3 in) over about 15 days, paired with high humidity at 84%. In contrast, May brings milder conditions, offering temperatures that range from a minimum of -2°C (30°F) to an average high of 25°C (77°F). Precipitation in May is lower at 65 mm (2.6 in) and occurs over about 10 days, with humidity slightly decreasing to 83%. The transition from December's chill to May's warmth highlights a significant seasonal shift. For more details, you can visit Trim weather in May.

In December, the weather is characterized by colder temperatures, with a minimum of -4°C (25°F) and an average of 6°C (44°F), reaching a maximum of 14°C (57°F). The month experiences significant precipitation, totaling 85 mm (3.3 in) over 15 days, alongside high humidity levels at 84%. In contrast, June offers a much milder climate, with temperatures ranging from a minimum of 4°C (40°F) to an average of 15°C (58°F), and a maximum of 28°C (83°F). Although June sees a bit less precipitation at 72 mm (2.8 in) over 13 days, the humidity remains similar at 85%. For more detailed insights on June weather, you can visit Trim weather in June.

In December, the weather is quite chilly, with average temperatures ranging from a brisk min of -4°C (25°F) to a pleasantly mild max of 14°C (57°F), accompanied by significant precipitation of 85 mm (3.3 in) over 15 days and a humidity level of 84%. In contrast, July boasts a warmer climate, with temperatures starting from a minimum of 6°C (44°F) to a maximum of 28°C (83°F) and an average temperature of 16°C (61°F). Rainfall is also less frequent in July, with a total of 68 mm (2.7 in) over 13 days, and humidity slightly higher at 86%. For more detailed insights, check out Trim weather in July.

The weather in December showcases a chillier atmosphere, with average temperatures ranging from a minimum of -4°C (25°F) to a maximum of 14°C (57°F). In contrast, August offers a milder climate, featuring averages from a minimum of 6°C (44°F) to a maximum of 24°C (75°F). Both months experience notable precipitation, with December totaling 85 mm (3.3 in) over approximately 15 days, while August sees slightly higher precipitation at 94 mm (3.7 in) across 17 days. Humidity levels remain fairly consistent, with December at 84% and August slightly higher at 85%. For more details on August weather, you can visit Trim weather in August.

In comparing the weather between December and September, we see distinct variations in temperature and precipitation. December tends to be colder, with temperatures ranging from a frigid minimum of -4°C (25°F) to a milder average of 6°C (44°F) and a maximum of 14°C (57°F). It also receives more precipitation, totaling 85 mm (3.3 in) over approximately 15 days, while maintaining high humidity at 84%.

In contrast, September offers a much warmer climate, featuring minimum temperatures of 1°C (35°F), an average of 14°C (57°F), and peaks of up to 25°C (77°F). With 66 mm (2.6 in) of rainfall spread across 12 days and a slightly higher humidity of 86%, September's weather is generally milder and more pleasant. For more detailed information, you can check out Trim weather in September.

In comparing December and October weather, October tends to be milder, with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 20°C (69°F), while December's temperatures are cooler, averaging between -4°C (25°F) and 14°C (57°F). Precipitation levels are fairly similar, with October receiving about 74 mm (2.9 in) over 14 days and December slightly wetter at 85 mm (3.3 in) over 15 days. Additionally, humidity levels are relatively close, with October at 87% and December at 84%. For more details on the weather during this month, you can check Trim weather in October.

December weather tends to be slightly colder than in November, with average temperatures ranging from a minimum of -4°C (25°F) to a maximum of 14°C (57°F), compared to November's milder range of -2°C (28°F) to 15°C (60°F). Additionally, December experiences a bit more precipitation, totaling 85 mm (3.3 in) over approximately 15 days, while November sees 80 mm (3.2 in) across about 12 days. Humidity levels remain quite similar, with December at 84% and November at 86%. For a detailed look at November's weather, check out Trim weather in November.

Compare Trim's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Trim

As December in Trim settles in, the weather takes on a distinct chill, contrasting sharply with the milder months earlier in the year. With temperatures dipping to a maximum of 14°C and an average around 6°C, this month ushers in a brisk atmosphere, where even cooler nights can plunge to -4°C. The increased precipitation, averaging 85 mm over 15 days of rain, enhances the lushness of the landscape while also contributing to the noticeably higher humidity at 84%. This blend of wet and cold creates a unique setting, perfect for cozy indoor gatherings or brisk walks to enjoy the enchanting winter scenery. For more insights on how December weather shapes the unique character of Trim, check out Trim Climate.