December Weather in Llan Ffestiniog, United Kingdom

Last updated: March 17, 2025

December in Llan Ffestiniog, United Kingdom, is characterized by a chilly atmosphere with temperatures ranging from a maximum of 12°C (54°F) to a minimum of -6°C (21°F), contributing to an average temperature of 6°C (43°F). This month is notably wet, with a substantial precipitation amount of 165 mm (6.5 in) spread over 20 days, leading to a consistently humid environment, boasting an average humidity of 89%. Visitors can expect a quintessentially wintery experience, marked by a blend of picturesque landscapes and brisk, damp weather.

December Temperature in Llan Ffestiniog

In Llan Ffestiniog, December brings a chill that marks the onset of winter, with temperatures ranging from a crisp -6°C (21°F) at night to a daytime average of 6°C (43°F). This month stands out as a transition point, where the cold deepens noticeably compared to the milder preceding weeks. The maximum temperature peaks at 12°C (54°F), presenting a stark contrast to the months of autumn. Overall, December’s temperatures reflect a downward trend, as the area prepares for the heart of winter, showcasing the region's crisp air and a touch of festive charm against its stunning mountainous backdrop.

December Weather in Llan Ffestiniog: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Llan Ffestiniog, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404143465157605955504542
Data source: Temperature data for Llan Ffestiniog 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 Llan Ffestiniog

In December, Llan Ffestiniog experiences an impressive average precipitation of 165 mm (6.5 in), marking it as one of the wettest months of the year. With rain falling on approximately 20 days, the festive season is often accompanied by a persistent drizzle, adding a cozy, atmospheric charm to the landscape. This trend of high December rainfall aligns with the wetter autumn months, particularly October, which recorded 163 mm (6.4 in). The consistent precipitation patterns highlight how Llan Ffestiniog's winter months, especially December, are characterized by a robust and persistent climate, reinforcing the area's lush, green scenery and vibrant natural environment.

December Precipitation Trends in Llan Ffestiniog

The chart displays monthly precipitation patterns in Llan Ffestiniog, 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.
JanFebMarAprMayJunJulAugSepOctNovDec103148141658810298153126163133165
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Llan Ffestiniog

In December, Llan Ffestiniog experiences a significant humidity level of 89%, which is consistent with the generally high humidity that marks the latter part of the year. After a gradual increase from 78% in July to 90% in October, humidity indicators remain elevated into December, only slightly dipping from the 91% recorded in November. This trend highlights a pattern of persistent moisture in the air as winter deepens, contributing to the area's lush landscapes and often, its characteristic misty conditions. As the year draws to a close, the humidity emphasizes the chill of December, enveloping the town in a cozy, atmospheric embrace.

December Average Humidity in Llan Ffestiniog

This chart illustrates the average monthly humidity levels in Llan Ffestiniog, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Llan Ffestiniog

In December, Llan Ffestiniog experiences a low UV Index of 1, indicating minimal exposure risk for sun enthusiasts. This calm period allows for a leisurely burn time of 45 minutes, making it an ideal month for outdoor activities without the worry of sunburn. As the year unfolds, we notice a distinct trend: the UV Index gradually rises from a mere 1 in January to a peak of 8 during the height of summer in June and July. Following the summer months, the index dips again, reflecting the seasonal variations of the sun's intensity. Understanding these fluctuations is crucial for planning your outdoor adventures. For more information on how to protect yourself from UV rays throughout the year, check out the full details at Llan Ffestiniog UV Index.

Maximum UV Index Levels in Llan Ffestiniog for December

The chart shows the monthly maximum UV Index (UVI) for Llan Ffestiniog 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Llan Ffestiniog 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 Llan Ffestiniog

In Llan Ffestiniog, December wraps up the year with a modest 106 hours of sunshine, a notable decline that contrasts sharply with the vibrant light of summer. Beginning the year with a mere 93 hours in January, the days steadily elongate, peaking dramatically in July with 421 hours. This yearly progression showcases a breathtaking transition from the short, sun-starved days of late autumn, exemplified by November's 124 hours, to the bright blooms of spring and summer, where months like May and June shine with 412 and 400 hours respectively. As December's daylight fades, one can reflect on the cyclical nature of sunshine in this picturesque Welsh locale, as the year gives way to winter's embrace and the promise of brighter days ahead.

Monthly Sunshine Duration in Llan Ffestiniog: December Highlighted

The December sunshine duration represents the total number of hours Llan Ffestiniog 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.
JanFebMarAprMayJunJulAugSepOctNovDec93h160h226h331h412h400h421h385h313h237h124h106h
Data source: Llan Ffestiniog December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Llan Ffestiniog During December

In Llan Ffestiniog, the likelihood of sunny weather in December remains relatively low, with only a 16% chance of sunshine gracing the skies. This figure mirrors the patterns observed in the preceding months, where November also offered a modest 19% chance and October dipped to 14%. As the year progresses into winter, the prospect of clear, sunny days diminishes, reflecting a trend of decreasing sunlight from the brighter spring and summer months, where chances peak around April at a pleasant 43%. As such, those hoping for a sun-filled December might want to prepare for the more typical overcast conditions that characterize this time of year in the UK.

Percentage of Sunny Days in December in Llan Ffestiniog

The chart illustrates the percentage of sunny days in Llan Ffestiniog 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 Llan Ffestiniog experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%18%24%44%26%25%34%22%19%14%19%16%
Data source: Llan Ffestiniog December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Llan Ffestiniog in December

In Llan Ffestiniog, United Kingdom, December marks the onset of the shortest days, with only 7 hours of daylight. This gradual decline in sunlight begins after the vibrant summer months, where the days stretch to a generous 16 hours in June and July. As autumn progresses, the daylight hours diminish, dropping to 8 hours in November, before hitting its lowest point in winter. After December, the light slowly begins to return, creating a hopeful transition into the brighter days of January and February. This cyclical pattern not only shapes the town's seasonal rhythm but also influences the local culture and activities, as residents and visitors alike adapt to the ebb and flow of natural light throughout the year.

Average Daylight Hours in Llan Ffestiniog for December

The chart illustrates the variation in daylight duration in Llan Ffestiniog throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 11m9h 51m11h 54m14h15h 51m16h 49m16h 18m14h 38m12h 36m10h 31m8h 39m7h 38m
Data source: Llan Ffestiniog daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Llan Ffestiniog

As December settles into Llan Ffestiniog, the winds pick up slightly, averaging 4.3 m/s (10 mph), a refreshing shift from the more subdued breezes of previous months. Throughout the year, the wind speed generally fluctuates, with a noticeable peak in February at 5.1 m/s (11 mph). Following the summer months of gentle winds, which dip as low as 2.5 m/s (6 mph) in July, December's winds provide a lively finale to the year's cycle. Interestingly, October and November also showcase stronger gusts, creating a pattern where the winter months are often characterized by a more invigorating atmosphere, preparing the landscape for the frosty embrace of winter. This blend of seasonal shifts and trends adds a unique charm to the coastal town, making December a month to experience nature's vibrant tableau.

Average December Wind Speed in Llan Ffestiniog

The chart displays monthly wind speed patterns in Llan Ffestiniog, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.95.14.53.03.73.12.53.42.94.84.04.3 m/s
Data source: Llan Ffestiniog December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Llan Ffestiniog Compares to Other Months

The weather in Llan Ffestiniog 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 Llan Ffestiniog and find detailed weather information for every month.

December and January exhibit fairly comparable weather patterns, although January tends to be slightly milder. In December, temperatures range from a minimum of -6°C (21°F) to a maximum of 12°C (54°F), with an average temperature of 6°C (43°F). The month is characterized by significant precipitation, totaling 165 mm (6.5 in) over approximately 20 days, while humidity remains high at 89%. In contrast, January sees a slight rise in temperatures, with a minimum of -4°C (25°F), an average of 5°C (41°F), and a maximum of 13°C (55°F). Precipitation decreases to 103 mm (4.0 in) across about 15 days, maintaining the same high humidity level. For a closer look at the January weather specifics, visit Llan Ffestiniog weather in January.

In December, the weather is generally colder with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 12°C (54°F), and an average of 6°C (43°F). The month experiences significant precipitation, averaging 165 mm (6.5 in) over about 20 days, along with high humidity at 89%. In comparison, February sees a slight increase in average temperature, with a range from -5°C (22°F) to a warmer maximum of 18°C (65°F), averaging 5°C (41°F). Precipitation is also somewhat reduced in February at 147 mm (5.8 in), falling over 17 days, and the humidity remains similar at 88%. Overall, February tends to be milder and slightly drier than December, offering more comfortable conditions. For more specific details, you can check the Llan Ffestiniog weather in February.

In December, the weather is characterized by colder temperatures, with a minimum of -6°C (21°F) and a maximum of 12°C (54°F), averaging around 6°C (43°F). The month experiences significant precipitation, totaling 165 mm (6.5 in) over about 20 days, along with high humidity at 89%. In contrast, March sees slightly more temperate conditions, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 17°C (64°F), while maintaining the same average of 6°C (43°F). Precipitation falls to 141 mm (5.6 in) over 18 days, and humidity decreases slightly to 86%. For more details on March weather in Llan Ffestiniog, check out Llan Ffestiniog weather in March.

December and April weather present distinct contrasts. In December, temperatures can drop to a chilly -6°C (21°F) at night, with an average of 6°C (43°F) and daytime highs reaching 12°C (54°F). The month also experiences significant precipitation, totaling 165 mm (6.5 in) over about 20 days, coupled with high humidity at 89%. In contrast, April sees milder conditions, with minimum temperatures around -3°C (27°F) and an average of 8°C (47°F), peaking at a comfortable 22°C (72°F). Precipitation decreases to 65 mm (2.5 in) spread over 12 days, while humidity slightly lessens to 84%. For a closer look at typical conditions, check out Llan Ffestiniog weather in April.

December weather is characterized by colder temperatures, with averages ranging from a chilly -6°C (21°F) to a maximum of 12°C (54°F). It's also quite wet, with an average precipitation of 165 mm (6.5 in) falling over about 20 days, and the humidity is notably high at 89%. In contrast, May brings a significant warming trend, featuring average temperatures from a minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F). May is considerably drier, receiving only 88 mm (3.5 in) of precipitation across 14 days, and the humidity decreases to 79%. For more details, you can check Llan Ffestiniog weather in May.

In December, Llan Ffestiniog experiences significantly colder temperatures, with minimums dropping to -6°C (21°F) and averages around 6°C (43°F). The month is quite wet, featuring 165 mm (6.5 in) of precipitation over approximately 20 days, accompanied by high humidity levels at 89%. In contrast, June brings a much milder climate, where temperatures range from a minimum of 5°C (41°F) to a pleasant average of 14°C (57°F), peaking at 28°C (82°F). Rainfall is reduced to 102 mm (4.0 in) spread over 14 days, and humidity decreases to 81%. For a detailed look at the June weather, visit Llan Ffestiniog weather in June.

The weather in December and July presents a stark contrast, with December characterized by cold temperatures ranging from a minimum of -6°C (21°F) to a maximum of 12°C (54°F), while July offers much warmer conditions with temperatures ranging from a minimum of 6°C (42°F) to a comfortable maximum of 28°C (83°F). December experiences a higher level of precipitation, totaling 165 mm (6.5 in) over approximately 20 days, compared to July's 98 mm (3.9 in) spread across 14 days. Additionally, December's humidity is significantly higher at 89%, in contrast to July's more moderate 78%. For more insights into the weather during July, visit Llan Ffestiniog weather in July.

In December, temperatures in Llan Ffestiniog range from a chilly -6°C (21°F) to a mild 12°C (54°F), with an average temperature of 6°C (43°F). The month sees significant precipitation, with about 165 mm (6.5 in) falling over 20 days, and high humidity levels averaging 89%. In contrast, August offers a much warmer climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 27°C (80°F) and an average of 15°C (59°F). Precipitation is slightly less, totaling 153 mm (6.0 in) over 21 days, and humidity is more comfortable at 79%. For more details on weather patterns in August, visit Llan Ffestiniog weather in August.

When comparing the weather in December and September, there are notable differences in both temperature and precipitation. December exhibits much cooler temperatures, with an average of 6°C (43°F) and lows reaching as low as -6°C (21°F). In contrast, September offers a milder climate, boasting average temperatures of 13°C (55°F) and highs that can reach 27°C (81°F). Precipitation is more frequent in December, with rain occurring on 20 days and totaling 165 mm (6.5 in), compared to September's 16 rainy days and 126 mm (5.0 in). Additionally, December's humidity level is slightly higher at 89%, while September maintains a comfortable 85%. For more details, you can check Llan Ffestiniog weather in September.

In December, temperatures range from a chilling -6°C (21°F) to a mild 12°C (54°F), with an average of 6°C (43°F). The month sees substantial precipitation, with 165 mm (6.5 in) over approximately 20 days, and the humidity remains high at 89%. In contrast, October experiences slightly warmer temperatures, with a minimum of -4°C (26°F), an average of 10°C (50°F), and a maximum of 21°C (69°F). Precipitation levels are comparable, at 163 mm (6.4 in) across 19 days, but humidity is slightly higher at 90%. For a detailed look at October's weather, you can refer to Llan Ffestiniog weather in October.

Comparing the weather in December and November reveals some notable differences. December tends to be colder, with minimum temperatures dropping to -6°C (21°F), compared to November's minimum of -2°C (29°F). The average temperature in December is slightly lower at 6°C (43°F) versus November's average of 7°C (45°F), and the maximum temperature peaks lower at 12°C (54°F) compared to November's 14°C (58°F). Additionally, December experiences more precipitation, totaling 165 mm (6.5 in) over 20 days, while November sees 133 mm (5.2 in) over 19 days. Humidity levels are similar, with December at 89% and November slightly higher at 91%. For further details, you can check Llan Ffestiniog weather in November.

Compare Llan Ffestiniog's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Llan Ffestiniog

December in Llan Ffestiniog brings a distinct chill as temperatures drop and the landscape transforms into a winter wonderland. With an average temperature noticeably cooler than the preceding months, the likelihood of frosty mornings and brisk days increases. This month also sees a significant uptick in precipitation, with wet days contributing to the area's lush greenery, despite the bite of the cold air. The high humidity levels make the dampness feel more penetrating, creating a quintessentially Welsh winter atmosphere. If you're curious about the broader climate patterns that shape this enchanting region, explore more at Llan Ffestiniog Climate.