December Weather in Llantwit Major, United Kingdom

Last updated: March 17, 2025

December in Llantwit Major, United Kingdom, is marked by a cool and damp climate, with a maximum temperature reaching around 13°C (55°F) and an average of 7°C (45°F). As winter settles in, nighttime temperatures can dip to a chilly -2°C (29°F). This month features significant rainfall, with 144 mm (5.7 in) spread over 18 days, contributing to the high humidity levels of 89%. Visitors should prepare for wet and overcast days, making it a perfect time to enjoy cozy indoor activities while experiencing the serene charm of this coastal town.

December Temperature in Llantwit Major

In December, Llantwit Major welcomes the winter chill with temperatures dipping to a minimum of -2°C (29°F). The month showcases an average temperature of 7°C (45°F), hinting at the transition from the earlier autumn months to deeper winter. While highs can reach a mild 13°C (55°F), the consistent trend of cooling down is evident as the year concludes. Following the gradual drop seen in November, with its max of 16°C (60°F), December marks a clear shift towards the colder side of the scale, making it a time for cozy gatherings and warm attire as residents brace for the festive chill.

December Weather in Llantwit Major: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Llantwit Major, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434345495459636258544845
Data source: Temperature data for Llantwit Major 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 Llantwit Major

December in Llantwit Major heralds a significant increase in precipitation, with an impressive 144 mm (5.7 in) of rain, making it one of the wettest months of the year. This month typically experiences about 18 days of rainfall, hinting at a persistent and often dreary ambiance as winter sets in. The precipitation levels rise sharply from the average seen in October and November, with December rivaling the peak months of summer and autumn. Interestingly, while the overall trend is toward wetter conditions, December’s rainfall amounts and frequency illustrate the seasonal shift, contrasting sharply with the drier spells of spring earlier in the year. This crucial winter rain plays a vital role in maintaining the lush greenery that characterizes Llantwit Major’s landscape, underscoring the importance of embracing the chill and wet of December.

December Precipitation Trends in Llantwit Major

The chart displays monthly precipitation patterns in Llantwit Major, 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.
JanFebMarAprMayJunJulAugSepOctNovDec831111015780858610693146111144
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Llantwit Major

In Llantwit Major, United Kingdom, the month of December continues the trend of high humidity that characterizes the region throughout the colder months. With a humidity level of 89%, December sees a slight dip from November's peak of 90%, yet it remains on par with the notable fluctuations observed earlier in autumn. The winter months show a generally elevated humidity, commencing with 88% in January and February and gradually descending to the summer lows. This pattern indicates a persistent maritime influence and a cozy, if moisture-laden, atmosphere during the festive season, creating a unique charm as the year draws to a close.

December Average Humidity in Llantwit Major

This chart illustrates the average monthly humidity levels in Llantwit Major, 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%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Llantwit Major

In Llantwit Major, December marks the onset of winter with a UV Index of 1, indicating a low exposure risk. The generally cooler temperatures and shorter days lead to a burn time of approximately 45 minutes under direct sunlight. This gentle reminder of the sun's diminished strength contrasts sharply with the summer months, where the index peaks at 8, reflecting the very high exposure category in June and July. As the year transitions from the moderate index of March and April to the low figures in November and December, it’s clear that residents and visitors should relish the low UV levels of winter while staying mindful of potential sun exposure. For more detailed information, visit Llantwit Major UV Index.

Maximum UV Index Levels in Llantwit Major for December

The chart shows the monthly maximum UV Index (UVI) for Llantwit Major 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.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Llantwit Major 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 Llantwit Major

Llantwit Major experiences a charming seasonal shift when it comes to sunshine hours, with December offering a gentle transition into winter. This month receives a modest 104 hours of sunshine, showing a noticeable decline from the vibrant summer months that peak at an impressive 410 hours in July. While December's sunlight is limited compared to the 393 hours of May or the 373 hours of June, it still provides a cozy backdrop for festive activities. As the year winds down, residents and visitors can appreciate these fleeting sunny moments against the backdrop of shorter days, reflecting a natural rhythm that prepares the town for the crisp arrival of winter.

Monthly Sunshine Duration in Llantwit Major: December Highlighted

The December sunshine duration represents the total number of hours Llantwit Major 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.
JanFebMarAprMayJunJulAugSepOctNovDec87h142h205h320h393h373h410h362h296h233h128h104h
Data source: Llantwit Major December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Llantwit Major During December

In Llantwit Major, December brings a distinctly lower chance of sunny weather, with only about 20% likelihood of sunshine gracing the skies, making it one of the least sunny months of the year. This trend follows a gradual decline in sunshine probability as the year progresses, plummeting from a peak of 54% in April to the depths of winter. Contrary to the vibrant spring months, December's overcast conditions often prevail, reflecting a shift as the region transitions into the colder season. Despite the gloomy outlook, the holiday spirit remains bright, inviting residents and visitors alike to enjoy the festive atmosphere of this remarkable coastal town.

Percentage of Sunny Days in December in Llantwit Major

The chart illustrates the percentage of sunny days in Llantwit Major 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 Llantwit Major experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%23%30%54%33%27%41%32%28%21%30%20%
Data source: Llantwit Major December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Llantwit Major in December

In Llantwit Major, December marks the culmination of a gradual decline in daylight hours, offering just 7 hours of sunlight daily. This reduction follows a steady decrease from a peak of 16 hours in June and July, where the long summer days provide ample opportunity for outdoor activities. As autumn sets in, daylight begins to wane, dropping to 8 hours in November before reaching its annual low in December. This trend showcases the seasonal ebb and flow of light, transitioning from the vibrant, sun-filled days of summer to the cozy, reflective ambiance of winter. As the year wraps up, residents embrace the festive season, finding joy in the charm of shorter days, knowing that brighter times are just around the corner.

Average Daylight Hours in Llantwit Major for December

The chart illustrates the variation in daylight duration in Llantwit Major throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 55m13h 54m15h 39m16h 33m16h 4m14h 30m12h 35m10h 36m8h 49m7h 52m
Data source: Llantwit Major daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Llantwit Major

As December graces Llantwit Major, the wind picks up a notable intensity, averaging 5.7 m/s (13 mph), which is a refreshing shift from the more subdued breezes of summer. This increase in wind speed hints at the transition into winter, following a general upward trend seen in the latter months of the year. The gusts are brisker compared to November's 4.4 m/s (10 mph) and starkly contrast the milder summer months where averages dipped below 4.4 m/s. December’s winds invigorate the coastal atmosphere, setting the stage for the holiday season while echoing the dynamic shifts of nature in this charming corner of the United Kingdom.

Average December Wind Speed in Llantwit Major

The chart displays monthly wind speed patterns in Llantwit Major, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.36.05.13.94.93.63.54.43.85.14.45.7 m/s
Data source: Llantwit Major December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Llantwit Major Compares to Other Months

The weather in Llantwit Major 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 Llantwit Major and find detailed weather information for every month.

December and January exhibit somewhat similar temperature ranges, with both months experiencing mild highs of around 13°C (55°F) to 13°C (56°F). However, December tends to be slightly warmer on average, with temperatures typically averaging 7°C (45°F) compared to January's average of 6°C (43°F). In terms of precipitation, December is significantly wetter, with 144 mm (5.7 in) falling over 18 days, while January sees a decrease in rainfall to 83 mm (3.3 in) across 12 days. The humidity levels are also quite comparable, with December at 89% and January at 88%. For more details on January weather in this region, you can check Llantwit Major weather in January.

In comparing the weather between December and February, we see some notable similarities and differences. December features an average temperature of 7°C (45°F), with a maximum of 13°C (55°F) and a minimum of -2°C (29°F). It experiences more precipitation, with 144 mm (5.7 in) spread over 18 days, resulting in a higher humidity of 89%. In contrast, February has slightly cooler temperatures, averaging 6°C (44°F), with a maximum of 15°C (59°F) and a minimum of -3°C (26°F). Precipitation decreases to 111 mm (4.4 in) over 15 days, while humidity remains relatively stable at 88%. For those interested in a detailed overview of February weather, you can explore more at Llantwit Major weather in February.

December and March present quite different weather experiences. In December, temperatures typically range from a chilly -2°C (29°F) to a milder 13°C (55°F), with an average of 7°C (45°F). This month sees significant precipitation, with 144 mm (5.7 in) falling over 18 days, contributing to a high humidity level of 89%. In contrast, March exhibits a slightly broader temperature range, from a minimum of -5°C (23°F) to a maximum of 18°C (64°F), while maintaining the same average of 7°C (45°F). The month is generally drier, with only 101 mm (4.0 in) of precipitation over 17 days and lower humidity at 86%. For more detailed insights into March weather, you can check out Llantwit Major weather in March.

December and April present contrasting weather patterns, with December characterized by colder temperatures and higher precipitation levels. In December, temperatures typically range from a minimum of -2°C (29°F) to a maximum of 13°C (55°F), alongside significant rainfall of 144 mm (5.7 in) occurring over 18 days, resulting in a high humidity level of 89%. In contrast, April offers a milder climate with average temperatures between -1°C (30°F) and 20°C (68°F) and considerably less rainfall of 56 mm (2.2 in) over just 10 days, accompanied by a lower humidity of 84%. The transition from the chilly, damp conditions of December to the more temperate and drier atmosphere of April can greatly influence the outdoor activities one might enjoy. For more information on weather specifically in April, you can check this link: Llantwit Major weather in April.

In December, the weather is significantly colder, with temperatures ranging from a frosty -2°C (29°F) at night to a mild 13°C (55°F) during the day. This month also sees higher precipitation, with 144 mm (5.7 in) across an average of 18 days, and the humidity is quite high at 89%. In contrast, May brings a warmer climate, with temperatures varying from a minimum of 2°C (36°F) to a comfortable maximum of 24°C (75°F). Precipitation decreases to 80 mm (3.2 in) over 12 days, and humidity levels drop to about 80%. For a more detailed understanding of the weather in this month, check out Llantwit Major weather in May.

December and June in Llantwit Major present a striking contrast in weather conditions. In December, temperatures range from a chilly -2°C (29°F) at night to a mild 13°C (55°F) during the day, accompanied by high humidity at 89% and significant precipitation of 144 mm (5.7 in) over 18 days. In contrast, June boasts much warmer temperatures, with a minimum of 7°C (45°F) and a pleasant maximum of 27°C (81°F). The month sees less rainfall, totaling 85 mm (3.3 in) over 13 days, and a slightly lower humidity level of 80%. For a closer look at June's weather specifics, check out Llantwit Major weather in June.

December and July present stark contrasts in weather. In December, temperatures range from a chilly -2°C (29°F) at night to a mild average of 7°C (45°F) during the day, capping at 13°C (55°F). The month sees significant precipitation, with 144 mm (5.7 in) falling over 18 days, accompanied by high humidity at 89%. In contrast, July boasts much warmer conditions, with temperatures starting at a minimum of 9°C (48°F) and peaking at 27°C (81°F), with an average of 17°C (63°F). This summer month experiences less rainfall, totaling 86 mm (3.4 in) across just 12 days, and a lower humidity of 70%. For a more detailed glimpse into July's weather, check out Llantwit Major weather in July.

December weather is characterized by colder temperatures, with a minimum of -2°C (29°F) and an average of 7°C (45°F), compared to the milder August temperatures that range from a minimum of 9°C (48°F) to an average of 16°C (62°F). While December sees a higher level of precipitation at 144 mm (5.7 in) over 18 days, August experiences less rainfall at 106 mm (4.2 in) across 16 days. Additionally, the humidity in December is notably high at 89%, making it feel even chillier, whereas August maintains a more comfortable humidity level of 73%. For a detailed look at August weather conditions, check out Llantwit Major weather in August.

December and September showcase markedly different weather patterns. In December, temperatures can drop as low as -2°C (29°F), with average highs reaching only 13°C (55°F), making it significantly colder than September, where the minimum is 5°C (41°F) and averages peak at a comfortable 15°C (59°F) to a warm 27°C (80°F). Additionally, December experiences higher precipitation levels at 144 mm (5.7 in) spread over 18 days, compared to September's 92 mm (3.6 in) over just 12 days. Humidity is also higher in December at 89%, while September maintains a milder 79%. For more detailed insights, check out Llantwit Major weather in September.

In December, the weather is notably colder compared to October, with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 13°C (55°F). In contrast, October experiences milder conditions, with temperatures varying from a minimum of 1°C (33°F) to a maximum of 21°C (70°F). Both months receive similar levels of precipitation, around 144 mm (5.7 in), but December sees slightly more rainy days, totaling 18 compared to October's 17. Humidity levels remain constant at 89% for both months. For more detailed information, you can check Llantwit Major weather in October.

In comparing the weather between November and December, December tends to be slightly colder, with average temperatures ranging from -2°C (29°F) to 13°C (55°F), whereas November has a milder average range from -1°C (31°F) to 16°C (60°F). Additionally, December experiences more precipitation, totaling 144 mm (5.7 in) over 18 days, compared to November's 111 mm (4.4 in) over 16 days. Humidity levels are fairly consistent, with December at 89% and November at 90%. For more detailed insights on November weather, you can check out Llantwit Major weather in November.

Compare Llantwit Major's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Llantwit Major

As December rolls into Llantwit Major, the weather shifts significantly, bringing a notable chill compared to the milder months prior. With average temperatures hovering around 7°C, locals can expect a brisk atmosphere, especially as nighttime lows dip to -2°C. The month is characterized by substantial precipitation, with rain falling on nearly two-thirds of the days, leading to a high humidity level of 89%. This wet and cool backdrop not only enhances the winter charm but also sets a striking contrast to the more temperate conditions of autumn. For a deeper understanding of Llantwit Major's seasonal nuances, explore more at Llantwit Major Climate.