December Weather in Bardsey, United Kingdom

Last updated: March 17, 2025

In December, Bardsey, United Kingdom, experiences a distinctly cool climate characterized by an average temperature of 5°C (42°F), with highs reaching 13°C (57°F) and lows plunging to a chilly -5°C (24°F). The island sees significant precipitation, accumulating 79 mm (3.1 in) over approximately 14 days, contributing to its lush, green landscape. The high humidity level of 90% adds to the wintry atmosphere, making December a month of moody skies and occasional brisk winds, perfectly encapsulating the essence of winter in this picturesque locale.

December Temperature in Bardsey

In Bardsey, United Kingdom, December marks the beginning of winter, with temperatures dipping to a minimum of -5°C (24°F). The average temperature hovers around 5°C (42°F), offering a brisk chill that contrasts with the milder months preceding it. While the maximums reach only 13°C (57°F), this represents a noticeable drop from the more temperate fall conditions. December’s climate sets the stage for cozy indoor gatherings, as the air turns crisper and the nights grow longer, echoing the transition into the colder depths of winter. The trend clearly illustrates a winter onset, favoring warmer attire and festive celebrations against a backdrop of cool, invigorating air.

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

The chart illustrates December temperature patterns in Bardsey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404143465258616156514541
Data source: Temperature data for Bardsey 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 Bardsey

In December, Bardsey, United Kingdom, experiences relatively high precipitation with an average of 79 mm (3.1 in) of rain over approximately 14 days. This marks a slight decrease compared to the 90 mm recorded in October, yet still reflects the consistency of wet winter weather typical for the region. The month showcases a significant rainfall pattern, paralleling November's 62 mm, suggesting that the festive season often arrives accompanied by persistent showers. With the winter months generally registering increased precipitation, December’s figures contribute to the cumulative annual totals, reinforcing Bardsey's lush landscape during this chilly yet vibrant time of year.

December Precipitation Trends in Bardsey

The chart displays monthly precipitation patterns in Bardsey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec548274396181757867906279
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bardsey

In Bardsey, United Kingdom, December heralds a return to higher humidity levels, aligning closely with January and October at 90%. This winter month marks a noticeable contrast to the slightly drier conditions experienced mid-year, where humidity dipped to a low of 76% in July. Following the trend of autumn, which sees rising moisture levels peaking in November at 92%, December settles into a consistent rhythm, indicative of Bardsey’s maritime climate. As the year concludes, residents experience a palpable dampness that underscores the area’s character, suggesting cozy nights by the fire while outside, the air remains brisk and saturated.

December Average Humidity in Bardsey

This chart illustrates the average monthly humidity levels in Bardsey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%80%81%76%77%85%90%92%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bardsey

In December, Bardsey, United Kingdom experiences a UV Index of 1, indicating a low exposure category and a leisurely burn time of 45 minutes. This marks a continuation of the trend from the previous months, where lower UV levels dominate the winter season. Following a peak in the summer months of June and July with indices reaching 8, the subsequent months saw a gradual decline, culminating in the chillier December. As daylight wanes, UV radiation is less intense, emphasizing the importance of wearing sunscreen only during prolonged outdoor activities. For more details on UV levels throughout the year, check out Bardsey UV Index.

Maximum UV Index Levels in Bardsey for December

The chart shows the monthly maximum UV Index (UVI) for Bardsey 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.
JanFebMarAprMayJunJulAugSepOctNovDec123578875321
Data source: Bardsey 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 Bardsey

In Bardsey, the December sunshine mirrors the tranquil lull of winter, offering a gentle 96 hours of light—a modest decrease that resonates with the dimming days of late fall. This month's sunlight is a part of a broader trend, as it follows the decline from November's brighter 119 hours, suggesting a natural ebb as the year draws to a close. While December may not bask in the radiant glow of summer’s 396 hours in July, it stands as a stark reminder of the seasonal shifts that weave through life in the United Kingdom. As days shorten and nights lengthen, December sunlight invites reflection on the year's journey and the vibrant days ahead, promising a gradual return to brightness in the coming months.

Monthly Sunshine Duration in Bardsey: December Highlighted

The December sunshine duration represents the total number of hours Bardsey 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.
JanFebMarAprMayJunJulAugSepOctNovDec81h140h210h317h386h358h396h359h291h227h119h96h
Data source: Bardsey December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bardsey During December

In Bardsey, United Kingdom, December is one of the cloudier months, with a mere 17% chance of sunny weather. This marks a significant drop from the more promising spring months, such as April, which boasts a 48% likelihood of sun. As the year draws to a close, the trend reveals that cold winter months like December and January tend to be less generous with sunshine, often leaving residents and visitors alike longing for the brighter days of early spring. With only a few glimpses of sunshine expected, December in Bardsey is better suited for cozy indoor activities than sunbathing.

Percentage of Sunny Days in December in Bardsey

The chart illustrates the percentage of sunny days in Bardsey 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 Bardsey experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%25%23%48%30%27%34%24%25%21%30%17%
Data source: Bardsey December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bardsey in December

In Bardsey, United Kingdom, the enchanting rhythms of daylight ebb and flow throughout the year, with December marking the time when sunlight is at its most limited. The month offers merely 7 hours of daylight, reflecting a gradual decline from the 15 hours of brightness experienced in May and 17 hours in June. This seasonal dip starkly contrasts with the vibrant daylight of summer, as the days wane leading up to the winter solstice. As autumn transitions into winter, the daylight reduces from about 8 hours in November, emphasizing the cozy, introspective nature of December. The trend underscores the cyclical dance of the seasons, where longer days of spring and summer gradually give way to the shorter, softer light of winter.

Average Daylight Hours in Bardsey for December

The chart illustrates the variation in daylight duration in Bardsey throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 2m9h 46m11h 54m14h 4m15h 59m17h16h 27m14h 44m12h 37m10h 28m8h 31m7h 28m
Data source: Bardsey daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Bardsey

As December unfolds in Bardsey, the winds whisper at an average speed of 4.1 m/s (9 mph), revealing a subtle decrease from the blustery peaks of earlier months. After a resurgence in October and November, where winds reached 4.8 m/s (11 mph), the gentle breezes of December invite a sense of calm. This month’s wind patterns continue a trend seen throughout the year, where winter months tend to bring brisker gusts compared to the summer’s tranquility, highlighted by the calm July winds dipping to just 2.7 m/s (6 mph). With each passing month, the variations illustrate the unique character of Bardsey's coastal climate, where even the winds narrate the season's evolving story.

Average December Wind Speed in Bardsey

The chart displays monthly wind speed patterns in Bardsey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.84.73.23.43.22.73.53.54.84.84.1 m/s
Data source: Bardsey December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Bardsey Compares to Other Months

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

In December, the weather is slightly milder with an average temperature of 5°C (42°F), peaking at a maximum of 13°C (57°F), while January experiences a slightly lower average of 4°C (40°F) with similar maximum temperatures of 14°C (57°F). Both months have a persistent chill, with minimum temperatures dipping to -5°C (24°F). However, December sees more precipitation at 79 mm (3.1 in) over approximately 14 days, compared to January's 54 mm (2.1 in) across 10 days. Interestingly, the humidity remains high in both months at 90%, contributing to the overall wintry feel. For more detailed insights, you can check out the weather specifics here: Bardsey weather in January.

December and February exhibit notable similarities and differences in their weather patterns. In December, temperatures range from a minimum of -5°C (24°F) to a maximum of 13°C (57°F), with an average temperature of 5°C (42°F). The month typically experiences 79 mm (3.1 in) of precipitation over 14 days and high humidity levels at around 90%. In contrast, February shows a slight dip in the minimum temperature, reaching -6°C (22°F), while the maximum temperature can rise to 17°C (63°F), maintaining a similar average of 5°C (41°F). Precipitation in February is slightly higher at 81 mm (3.2 in) with the same number of rainy days, and humidity levels are just a touch lower at 88%. For more detailed insights on weather in February, you can visit Bardsey weather in February.

In December, temperatures typically range from a chilly -5°C (24°F) to a mild 13°C (57°F), with an average temperature of around 5°C (42°F). The month sees considerable precipitation, averaging 79 mm (3.1 in) over approximately 14 days, accompanied by high humidity at 90%. In contrast, March experiences slightly warmer weather, with temperatures ranging from -6°C (22°F) to a maximum of 19°C (66°F), and an average of 6°C (44°F). Although precipitation remains similar at 74 mm (2.9 in) over 14 days, the humidity drops slightly to 86%. For a more detailed look at March weather, you can check Bardsey weather in March.

When comparing the weather in December and April, notable differences emerge. December typically has lower average temperatures, ranging from a minimum of -5°C (24°F) to a maximum of 13°C (57°F), while April experiences milder conditions, with temperatures ranging from -3°C (27°F) to a pleasant 23°C (74°F). Precipitation is more substantial in December, with 79 mm (3.1 in) over 14 days, compared to just 39 mm (1.5 in) over 8 days in April. Additionally, humidity levels are slightly higher in December at 90%, while April sees a more moderate humidity of 84%. For more specific insights on weather patterns in April, you can visit Bardsey weather in April.

In December, temperatures typically range from a chilly -5°C (24°F) at night to a maximum of 13°C (57°F) during the day, with an average temperature of around 5°C (42°F). The month experiences significant precipitation, amounting to 79 mm (3.1 in) over about 14 days, and the high humidity level of 90% adds to the cold and damp atmosphere. In contrast, May brings a notable warm-up, with temperatures ranging from a minimum of -1°C (30°F) to a pleasant maximum of 25°C (77°F), averaging 11°C (53°F). May sees less precipitation at 61 mm (2.4 in) spread over 12 days and a slightly lower humidity of 80%. For a detailed look at the weather during this time, check out Bardsey weather in May.

In December, the weather is quite chilly, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (57°F) and an average temperature of 5°C (42°F). The month sees considerable precipitation, totaling 79 mm (3.1 in) over about 14 days, paired with high humidity levels of 90%. In stark contrast, June offers a much milder climate, with temperatures starting at 5°C (41°F) and peaking at 27°C (82°F), averaging 14°C (58°F). Precipitation in June is slightly higher at 81 mm (3.2 in) over 12 days, but the humidity is lower at 81%. For more detailed information on June weather, you can check Bardsey weather in June.

In December, the weather is much colder, with average temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (57°F), while July experiences significantly warmer temperatures, with averages from a minimum of 7°C (45°F) to a maximum of 33°C (92°F). December also sees higher humidity levels at 90% and more precipitation spread over 14 days, totaling 79 mm (3.1 in), compared to July's lower humidity of 76% and slightly less precipitation at 75 mm (2.9 in) over 13 days. Overall, December presents a chilly and wetter climate, while July is characterized by warmth and drier conditions, making it a more pleasant month for outdoor activities. For more details about Bardsey weather during this month, you can refer to Bardsey weather in July.

When comparing the weather in December and August, it's clear that the two months offer markedly different climates. December features chillier temperatures with a minimum of -5°C (24°F) and an average of 5°C (42°F), while August enjoys milder conditions with a minimum of 7°C (45°F) and an average of 16°C (61°F). Precipitation levels for both months are similar, with December receiving 79 mm (3.1 in) and August slightly less at 78 mm (3.1 in). However, December's higher humidity at 90% contrasts with August's more comfortable 77%. For more detailed insights into August's weather, you can visit Bardsey weather in August.

December and September exhibit quite different weather patterns. December sees colder temperatures, with a minimum of -5°C (24°F) and an average of around 5°C (42°F), compared to September’s milder range, where the minimum is 3°C (38°F) and the average hits 13°C (57°F). In December, the maximum temperature is a chilly 13°C (57°F), whereas September enjoys much warmer highs, peaking at 27°C (81°F). Precipitation levels are slightly higher in December, with 79 mm (3.1 in) over 14 days, compared to September's 67 mm (2.6 in) across 12 days. Humidity is also notably higher in December at 90%, contrasting with September’s 85%. For a more detailed look at September's weather, visit Bardsey weather in September.

When comparing the weather in December to that of October, notable differences emerge. December exhibits cooler temperatures, with an average of 5°C (42°F), contrasting sharply with October's warmer average of 11°C (51°F). Minimum temperatures in December can plunge to -5°C (24°F), compared to October's milder -1°C (31°F). Precipitation levels are fairly similar, with December receiving 79 mm (3.1 in) over 14 days, while October sees slightly more rain at 90 mm (3.5 in) across 15 days. Both months share a high humidity level of 90%, but the overall colder conditions of December mark a significant shift from the relatively mild October climate. For detailed insights on rainfall and conditions, refer to Bardsey weather in October.

In comparing the weather conditions of December and November, it is evident that December tends to be colder, with average temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (57°F), compared to November's milder temperatures, which range from -3°C (27°F) to 17°C (62°F). Precipitation is also more frequent in December, totaling 79 mm (3.1 in) over 14 days, compared to November's 62 mm (2.4 in) over 13 days. Additionally, both months experience high humidity levels, with December at 90% and November slightly higher at 92%. For further details on last month's climate, you can check Bardsey weather in November.

Compare Bardsey's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Bardsey

In December, Bardsey experiences a notable shift in weather, with temperatures dipping significantly compared to the milder months preceding it. The crisp air embraces an average temperature of just 5°C, and occasional frosty nights can see the mercury plummet to -5°C. This month is also characterized by increased precipitation, with rain gracing the island on nearly half the days, leading to a moisture-laden environment and a humidity level that often hovers around 90%. This combination of cool temperatures and regular rainfall creates a distinctly wintery atmosphere, setting December apart from the sunnier, drier spells earlier in the year. For a deeper dive into Bardsey's annual weather patterns, check out Bardsey Climate.