December Weather in Armagh, United Kingdom

Last updated: March 17, 2025

In Armagh, United Kingdom, December embraces the chill of winter with a maximum temperature of 13°C (56°F) and an average temperature hovering around 6°C (43°F). As the month unfolds, temperatures can dip to a brisk minimum of -3°C (27°F), prompting residents and visitors alike to bundle up. The month is also marked by significant precipitation, totaling 89 mm (3.5 in) over 13 days, contributing to the lush scenery of the region. With an humidity level of 86%, December in Armagh is undeniably a month of cozy atmospheres and scenic winter landscapes, making it a time for warm gatherings and festive cheer.

December Temperature in Armagh

In December, Armagh, United Kingdom, experiences a chill that marks the transition into winter, with temperatures dipping to a minimum of -3°C (27°F) and averaging around 6°C (43°F). The maximum temperature rarely climbs above 13°C (56°F), signaling the colder months ahead. This trend reflects a gradual downward shift from the milder autumn months of October and November, where temperatures hovered slightly higher. As the year draws to a close, residents can expect brisk, frosty days and the potential for a festive dusting of snow, creating a picturesque winter atmosphere that invites cozy gatherings and holiday cheer.

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

The chart illustrates December temperature patterns in Armagh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414244475257605955504543
Data source: Temperature data for Armagh 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 Armagh

In Armagh, December signals a notable shift in weather patterns, with precipitation reaching 89 mm (3.5 in) across approximately 13 days. This places December among the wetter months, trailing just behind August's peak of 121 mm (4.8 in). Interestingly, while November and December share similar precipitation levels at 82 mm, December's rain tends to fall over fewer days, suggesting more sustained rainfall events. Overall, as the year closes, the trend shows an upward movement in precipitation, contributing to the lush, green landscapes that Armagh is known for.

December Precipitation Trends in Armagh

The chart displays monthly precipitation patterns in Armagh, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6191834968817812172828289
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Armagh

In December, Armagh experiences a humidity level of 86%, which is slightly lower than the previous month’s 90% but consistent with the trend observed throughout the year. The winter months in Armagh tend to showcase higher humidity levels, peaking in November and remaining relatively stable in December. This mild decrease marks a subtle shift as the year comes to a close, reflecting the area's characteristically moist climate. Interestingly, while January starts off with one of the highest humidity levels at 87%, the overall winter pattern suggests a gradual but steady humidity trend that emphasizes Armagh’s unique atmospheric conditions.

December Average Humidity in Armagh

This chart illustrates the average monthly humidity levels in Armagh, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Armagh

In December, Armagh experiences a return to a low UV Index of 1, akin to the conditions seen at the start of the year. This means that outdoor enthusiasts can relish the winter scenery without the immediate concern of sunburn, as the burn time extends to a generous 45 minutes. Following a pattern throughout the year, UV exposure peaks in the summer months, where the index reaches 8 in both June and July, signaling a very high risk. As autumn settles in, a gradual decline occurs, bringing the index down to 2 in November and 1 in December. For more detailed insights on the UV Index and its seasonal variations, check out Armagh UV Index.

Maximum UV Index Levels in Armagh for December

The chart shows the monthly maximum UV Index (UVI) for Armagh 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: Armagh 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 Armagh

In Armagh, United Kingdom, December brings a gentle closing to the year's sunshine, with approximately 75 hours of bright daylight. This marks a slight decline from November’s 101 hours, as the winter chill deepens and daylight diminishes. As the year progresses, it becomes evident that the sunshine peaks during the vibrant months of late spring and summer, with a remarkable 365 hours in May, followed closely by the sun-drenched summer months of June and July, averaging nearly 348 hours each. Conversely, the darker months of late autumn and winter, particularly December and January, reveal a stark drop in sunlight, hinting at the cozy hibernation that encircles the region. This rhythmic ebb and flow of sunshine highlights Armagh’s seasonal charm, offering a unique backdrop for quiet reflection as the year bids farewell.

Monthly Sunshine Duration in Armagh: December Highlighted

The December sunshine duration represents the total number of hours Armagh 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.
JanFebMarAprMayJunJulAugSepOctNovDec71h134h172h280h365h348h349h298h262h206h101h75h
Data source: Armagh December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Armagh During December

In December, the likelihood of experiencing sunny weather in Armagh, United Kingdom, diminishes to just 13%, marking it as one of the bleakest months for sunshine throughout the year. This trend reflects a notable decline from the more favorable conditions of earlier months, where April offers the best chance at 37% sunshine. As the year progresses into winter, the percentages for sunlight steadily decrease, with November holding a modest 21%, but ultimately leading into a month characterized by overcast skies and limited brightness. If you're hoping for a sun-kissed December, it might be wise to keep expectations low and embrace the festive charm of a crisp, cloudy winter instead.

Percentage of Sunny Days in December in Armagh

The chart illustrates the percentage of sunny days in Armagh 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 Armagh experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%21%16%37%32%20%24%20%18%16%21%13%
Data source: Armagh December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Armagh in December

As December envelops Armagh, the daylight hours dwindle to just 7 hours, reflecting the deepening winter chill. This month stands out as a stark contrast to the vibrant brightness of summer, where June boasts the most daylight at 17 hours. Following a gradual decline from the long summer days, daylight hours consistently decrease from 8 hours in November, leading down to December's minimal glow. The trend clearly illustrates the seasonal shift, with days gradually shortening from October's 10 hours until the winter solstice, before they begin their slow climb back upwards in January. Even though the days may be shorter, the crisp, clear air of December offers its own unique charm, inviting residents to make the most of every precious ray of sunlight.

Average Daylight Hours in Armagh for December

The chart illustrates the variation in daylight duration in Armagh throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 58m9h 44m11h 54m14h 6m16h 3m17h 6m16h 32m14h 46m12h 38m10h 27m8h 27m7h 23m
Data source: Armagh daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Armagh

As December arrives in Armagh, the wind begins to pick up, maintaining an average speed of 4.2 m/s (9 mph), which echoes the gusty conditions noted in the preceding months of October and November. This slight increase suggests a subtle shift in the weather, as autumn gives way to winter. Interestingly, the wind speeds in the latter half of the year reveal a gradual pattern; starting from a calm 2.3 m/s (5 mph) in July, they consistently rise, peaking as the year draws to a close. With December's winds not only offering a briskness to the air but also a hint of the chill to come, it perfectly encapsulates the transition into the colder months, inviting us to embrace the cozy comforts of the season.

Average December Wind Speed in Armagh

The chart displays monthly wind speed patterns in Armagh, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.65.14.33.03.43.52.32.83.14.14.24.2 m/s
Data source: Armagh December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Armagh Compares to Other Months

The weather in Armagh 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 Armagh and find detailed weather information for every month.

In comparing December and January, we observe that January tends to be slightly colder overall, with average temperatures dipping to 5°C (42°F) compared to December's 6°C (43°F). The minimum temperature in January can also reach as low as -5°C (24°F), which is colder than December’s minimum of -3°C (27°F). However, January experiences slightly less precipitation, totaling 60 mm (2.4 in) over 11 days, compared to December's 89 mm (3.5 in) over 13 days. Humidity levels remain fairly consistent, hovering around 86% in December and 87% in January. For more detailed weather patterns, you can check Armagh weather in January.

In December, temperatures typically range from a chilly -3°C (27°F) to a mild 13°C (56°F), with an average of 6°C (43°F). The month experiences approximately 89 mm (3.5 in) of precipitation over about 13 days, alongside high humidity at 86%. In contrast, February sees slightly lower minimum temperatures of -4°C (24°F) but can reach up to 15°C (59°F), maintaining the same average of 6°C (43°F) as December. Precipitation increases slightly to 91 mm (3.6 in) across 15 days, while humidity remains constant at 86%. For more specific details, you can check out Armagh weather in February.

December and March exhibit similar average temperatures, both hovering around 6°C (43°F), but March offers a slightly warmer maximum temperature of 17°C (63°F) compared to December's peak of 13°C (56°F). While December experiences a minimum temperature that averages at -3°C (27°F), March is just a notch colder at -4°C (25°F). Precipitation levels are comparable, with December receiving 89 mm (3.5 in) over 13 days and March slightly less at 83 mm (3.3 in) over 16 days. Both months maintain high humidity levels at 86%, creating a chilly atmosphere. For a detailed look at the weather trends in March, you can visit Armagh weather in March.

When comparing the weather in December and April, one can see distinct differences in temperature and precipitation. December experiences colder temperatures, with a minimum of -3°C (27°F), an average of 6°C (43°F), and a maximum of 13°C (56°F). In contrast, April shows a notable increase in warmth, starting with the same minimum of -3°C but rising to an average of 8°C (47°F) and peaking at 20°C (68°F). Additionally, December is wetter with a total precipitation of 89 mm (3.5 in) over 13 days, whereas April has significantly less rainfall at 49 mm (1.9 in) over 12 days. Humidity levels are quite similar in both months, with December at 86% and April slightly lower at 85%. For more detailed information on the weather in April, you can visit Armagh weather in April.

December and May present a striking contrast in weather patterns. In December, temperatures range from a chilly -3°C (27°F) to a maximum of 13°C (56°F), with an average of 6°C (43°F). The month sees significant precipitation, totaling 89 mm (3.5 in) over 13 days, and high humidity levels at 86%. In comparison, May experiences milder conditions, with temperatures varying from -1°C (30°F) to a warm 24°C (75°F), boasting an average of 11°C (53°F). The precipitation in May is lower at 68 mm (2.7 in) across 12 days, and humidity decreases slightly to 82%. For more detailed weather insights, check Armagh weather in May.

December and June present quite different weather patterns. In December, temperatures range from a chilly -3°C (27°F) at night to a mild 13°C (56°F) during the day, with an average of 6°C (43°F). The month sees about 89 mm (3.5 in) of precipitation over 13 days, coupled with high humidity levels at 86%. In contrast, June offers a more pleasant climate, with temperatures starting at a minimum of 5°C (41°F) and rising to a maximum of 29°C (84°F), averaging around 14°C (58°F). Precipitation in June is slightly lower at 81 mm (3.2 in), but it occurs over more days—15 in total—with humidity remaining relatively comfortable at 84%. For a more detailed look at June weather specifics, visit Armagh weather in June.

December and July exhibit stark differences in weather patterns. In December, temperatures can drop as low as -3°C (27°F), with an average of 6°C (43°F) and a maximum of 13°C (56°F). The month experiences about 89 mm (3.5 in) of precipitation over 13 days, accompanied by high humidity at 86%. In contrast, July brings milder conditions, where the minimum temperature starts at 6°C (43°F) and can reach a warm average of 16°C (60°F) and a maximum of 28°C (82°F). July sees slightly less precipitation, measuring 78 mm (3.1 in) across the same number of rainy days. For more details on July weather, you can visit Armagh weather in July. Overall, July offers a much warmer and drier climate compared to the cold, wet conditions typical of December.

December weather is significantly colder compared to August, with average temperatures ranging from a chilly -3°C (27°F) at night to a maximum of 13°C (56°F) during the day. In contrast, August enjoys milder temperatures, with nightly lows of 6°C (42°F) and daytime highs reaching 24°C (75°F). While both months have similar humidity levels at 86%, December experiences less precipitation overall, with 89 mm (3.5 in) over 13 days, making August the wetter month with 121 mm (4.8 in) over 19 days. For further details, you can check the Armagh weather in August.

In December, the weather is significantly colder than in September, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 13°C (56°F), compared to September's milder temperatures of 2°C (35°F) to 23°C (74°F). December also experiences higher precipitation levels, with 89 mm (3.5 in) falling over 13 days, whereas September sees slightly less rain—72 mm (2.8 in) over 14 days. Humidity remains relatively high in both months, with December at 86% and September at 88%. For a detailed look at September weather, you can check Armagh weather in September.

In comparing the weather between October and December, December tends to be colder overall, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 13°C (56°F), while October experiences milder conditions, with average temperatures from -1°C (31°F) to 19°C (67°F). Precipitation levels are fairly similar, with December receiving 89 mm (3.5 in) over 13 days, compared to October's 82 mm (3.2 in) across 15 days. Additionally, December sees slightly lower humidity at 86%, compared to October's higher humidity of 89%. For more detailed insights, you can visit Armagh weather in October.

When comparing the weather in December to that of November, we see a slight drop in average temperatures. December's average is 6°C (43°F), compared to November's 7°C (46°F), with the maximum temperature reaching 13°C (56°F) in December, slightly lower than November's 15°C (59°F). Both months experience similar minimum temperatures of around -3°C (27°F/26°F), but December tends to be wetter, with 89 mm (3.5 in) of precipitation over 13 days, compared to November's 82 mm (3.2 in) over 15 days. Humidity levels also remain high, with December at 86% and November slightly higher at 90%. For more detailed information on November's weather, you can visit Armagh weather in November.

Compare Armagh's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Armagh

As December settles over Armagh, the weather transforms into a blend of cold temperatures and increased precipitation, setting it apart from the milder months earlier in the year. With average highs hovering around 6°C, and the chance of frosty nights dropping to -3°C, this month requires a warm coat and a sturdy umbrella. The 86% humidity plays a significant role in creating that crisp, damp chill often associated with winter. Expect about 13 days of rain, culminating in a total of 89 mm of precipitation, which paints the lush landscape in a vibrant winter hue. For a deeper dive into what to expect throughout the year, visit Armagh Climate.