Last updated: March 17, 2025
In December, Tenby experiences a mild but often wet winter, with average temperatures hovering around 8°C (48°F). Daily highs reach a maximum of 13°C (56°F), while nighttime lows dip to a chilly 1°C (34°F). Visitors can expect a substantial amount of rainfall, totaling approximately 156 mm (6.1 in) over 20 days, contributing to a high humidity level of 89%. This combination of cool temperatures and frequent precipitation sets a quintessential winter scene in this picturesque coastal town, perfect for cozy getaways and festive cheer.
In December, Tenby experiences a subtle transition into winter, with temperatures that reflect the chill of the season. The minimum dips to around 1°C (34°F), while the average settles at 8°C (48°F), offering a brisk yet manageable atmosphere. The maximum reaches about 13°C (56°F), suggesting a rare opportunity for slightly milder days amidst the usually crisp weather. Compared to the preceding months, December's temperatures are a gentle decline, moving from the cooler average of 10°C in November to the colder values of winter. Visitors can expect a cozy but chilly environment, perfect for enjoying festive activities and the picturesque landscapes of this charming coastal town.
December in Tenby, United Kingdom, marks a significant increase in precipitation, capping off the year with 156 mm (6.1 in) of rainfall over 20 days. This surge not only makes December the wettest month of the year but also highlights a noticeable trend as precipitation levels rise considerably from the preceding months. After averaging around 137 mm in November, December's rainfall reflects a dramatic peak, following a pattern of escalating wetness towards the year’s end. The frequent rainfall creates a lush, vibrant landscape, yet may also leave visitors reaching for their umbrellas as they navigate through this unrelenting downpour.
In December, Tenby, United Kingdom, experiences high levels of humidity, with an average of 89%, mirroring the dampness of the preceding October (89%) and slightly lower than the even more humid November (90%). This trend signifies a consistent winter pattern, where humidity remains elevated compared to the milder months, such as July (70%) and August (73%). As the year transitions into the colder months, the drop in temperatures coincides with a rise in humidity levels, creating a unique coastal atmosphere that Tenby is known for. The persistent idea of a brisk, sea-scented air hints at the town's charm, even in the heart of winter.
In December, Tenby, United Kingdom, experiences a low UV Index of 1, meaning sun exposure can be enjoyed safely with minimal risk of harm. With a burn time of 45 minutes, residents and visitors alike can take advantage of the relatively mild sunlight without the urgency of seeking shade. This low level is consistent with the trend from previous months, particularly November’s Index of 2, indicating a steady decline in UV radiation as winter sets in. The transition from the high and very high levels seen in the summer months, where the UV Index peaked at 8 in both June and July, highlights the significant seasonal variation in UV exposure in this coastal area. For further details on UV levels throughout the year, check out the Tenby UV Index.
UV Risk Categories
December in Tenby, United Kingdom, offers a subtle transition as daylight begins to wane, with 114 hours of sunshine illuminating the festive season. This is a stark contrast to the abundance of bright days earlier in the year—July stands out with a peak of 424 hours. As winter sets in, the sun’s embrace diminishes, reflecting the seasonal rhythm where the sunny months March through August shine the brightest, collectively basking the region in over 2,000 hours of radiant warmth. While December may not rival the summer sun, it still adds a glimmer of light, inviting locals and visitors alike to celebrate the charm of Tenby during the holiday season, despite the shorter days.
In December, Tenby experiences a modest 22% chance of sunny weather, making it one of the cloudier months of the year. As the festive season approaches, the likelihood of sunlight wanes, dipping from the more cheerful 52% in April and fluctuating down to 23% in November. This trend highlights a gradual decline in sunny days as winter sets in, with more overcast skies becoming the norm. While December's percentages are low, it's worth noting that the changing seasons create a unique beauty in Tenby, perfect for embracing a cozy, festive atmosphere despite the lack of sun.
In December, Tenby experiences a noticeable drop in daylight, with only 7 hours of illumination—hitched to the winter solstice—as the days grow shorter. This dwindling daylight is part of a broader trend observed throughout the year, where the sunniest months are captivating June and July, each boasting a generous 16 hours of daylight. As autumn transitions into winter, hours of daylight diminish, plummeting from 15 hours in May to a stark 8 hours in November before finally reaching its low point in December. Despite the reduced sunlight, Tenby's unique charm still shines through the long, cozy evenings that mark this season, inviting visitors to embrace the beauty of winter.
As December blankets Tenby, the wind picks up, with an average speed of 7.0 m/s (16 mph), marking a noticeable increase compared to the gentle breezes of summer. This lively gust serves as a reminder of the shifting seasons, with December's winds surpassing those of the preceding autumn months and closely aligning with February’s robust currents. Following a steady decline through the warmer months, when speeds drop to a tranquil 3.9 m/s (9 mph) in July, the return to sharper winds in late autumn signals the advent of winter. Thus, December emerges as a month of dynamic change, where the winds play a vital role in shaping Tenby’s coastal charm, enticing locals and visitors alike to embrace the brisk air.
The weather in Tenby 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 Tenby and find detailed weather information for every month.
In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 13°C (56°F), with an average of 8°C (48°F). The month is characterized by significant rainfall, receiving 156 mm (6.1 in) over 20 days, and maintaining a high humidity level of 89%. In contrast, January sees slightly lower temperatures, with a minimum of 0°C (32°F) and a maximum of 14°C (57°F), resulting in an average temperature of 7°C (45°F). Precipitation decreases to 84 mm (3.3 in) over just 13 days, and humidity remains relatively stable at 88%. For a closer look at the weather patterns during this month, check out Tenby weather in January.
December and February offer contrasting winter weather, despite some similarities in temperature ranges. In December, the average temperature hovers around 8°C (48°F), while February sees a slight dip, averaging 7°C (45°F). December is characterized by milder temperatures, with a minimum of 1°C (34°F) compared to February's chilly minimum of -2°C (29°F). Precipitation in December is notably higher at 156 mm (6.1 in) over 20 days, compared to February’s 108 mm (4.3 in) across 16 days, indicating that December tends to be wetter. Humidity levels are quite similar, with December at 89% and February at 88%. For more detailed insights, you can check out Tenby weather in February.
December and March present distinct weather patterns, with December characterized by milder temperatures averaging around 8°C (48°F), but experiencing higher humidity at 89% and considerable precipitation totaling 156 mm (6.1 in) over 20 days. In contrast, March offers cooler minimum temperatures that can drop to -4°C (25°F) while maintaining a similar average of 8°C (46°F). It also has slightly less precipitation, at 97 mm (3.8 in) over 17 days, and a marginally lower humidity of 86%. These variations make December feel wetter and more humid, while March introduces cooler air with less frequent rain. For more information on March weather, check out Tenby weather in March.
In comparing the weather between December and April, one can observe distinct differences in both temperature and precipitation. December typically experiences cooler temperatures, with minimums around 1°C (34°F) and averages hovering at 8°C (48°F), peaking at a maximum of 13°C (56°F). Additionally, it is a wetter month, recording about 156 mm (6.1 in) of precipitation over 20 days, along with high humidity levels at 89%. In contrast, April offers a milder climate, with minimum temperatures rising slightly to 2°C (36°F) and average temperatures reaching 9°C (49°F), while maximums can go up to 18°C (64°F). Precipitation in April is notably lower at 54 mm (2.1 in) over just 10 days, and humidity levels decrease to 84%. For more specific details on April weather in Tenby, you can visit Tenby weather in April.
In December, the weather is notably chillier, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 13°C (56°F) and an average of 8°C (48°F). This month also sees considerable precipitation, with 156 mm (6.1 in) spread over 20 days, resulting in high humidity at 89%. In contrast, May brings a much warmer climate, with temperatures varying from 4°C (39°F) to 22°C (71°F) and an average of 12°C (53°F). Additionally, May has significantly less rainfall at 71 mm (2.8 in) over just 11 days, leading to a lower humidity level of 80%. For more detailed insights, check out Tenby weather in May.
In December, the weather is quite cool with average temperatures ranging from a chilly 1°C (34°F) at night to a maximum of 13°C (56°F) during the day. The month is often marked by significant precipitation, averaging 156 mm (6.1 in) over 20 days, accompanied by high humidity levels of 89%. In contrast, June brings much milder conditions, with temperatures ranging from a minimum of 8°C (47°F) to a pleasant average of 15°C (59°F), peaking at around 24°C (75°F). Rain is less frequent in June, with a total of 88 mm (3.5 in) of precipitation spread over 15 days, and humidity drops to a more comfortable 80%. For a detailed look at the weather during this month, you can visit Tenby weather in June.
December and July present striking contrasts in weather. In December, temperatures range from a chilly 1°C (34°F) to a maximum of 13°C (56°F), with an average around 8°C (48°F). This month sees considerable precipitation, accumulating to 156 mm (6.1 in) over 20 days, accompanied by high humidity levels at 89%. In stark contrast, July enjoys milder temperatures, with a minimum of 11°C (51°F) and highs reaching up to 25°C (78°F), averaging 16°C (62°F). The summer month receives significantly less rainfall, at 74 mm (2.9 in) over just 12 days, and offers a more comfortable humidity level of 70%. For a closer look at July weather, you can visit Tenby weather in July.
When comparing the weather in December and August, it's clear that August is significantly warmer and drier. December sees average temperatures ranging from a chilly 1°C (34°F) to a maximum of 13°C (56°F), coupled with high precipitation levels of 156 mm (6.1 in) over 20 days and humidity reaching 89%. In contrast, August boasts more comfortable temperatures, with a minimum of 10°C (51°F) and a maximum of 24°C (75°F), along with lower precipitation at 113 mm (4.4 in) over 16 days and a more pleasant humidity level of 73%. For more details on the delightful weather conditions typical of August, check out Tenby weather in August.
December and September exhibit markedly different weather patterns. In December, temperatures range from a chilly 1°C (34°F) to a mild 13°C (56°F), with an average of 8°C (48°F), while September enjoys a much warmer climate, with minimum temperatures of 7°C (45°F) and highs reaching 25°C (77°F), averaging around 15°C (59°F). Rainfall is more frequent in December, accumulating to 156 mm (6.1 in) over 20 days, compared to September's 101 mm (4.0 in) over 15 days. Additionally, December's humidity sits at a high 89%, while September is slightly less humid at 79%. These differences contribute to a feeling of winter in December and a more temperate, pleasant atmosphere in September. For more detailed insights on September's weather, you can visit Tenby weather in September.
In comparing the weather of December and October, we see some notable differences, particularly in temperature and precipitation. December experiences cooler temperatures overall, with average highs of 13°C (56°F) compared to October's warmer average of 13°C (55°F). Both months have similarly low minimum temperatures starting at 1°C, yet October has a much warmer maximum temperature reaching 19°C (67°F). Precipitation is slightly higher in December, with 156 mm (6.1 in) over 20 days, compared to October's 142 mm (5.6 in) over 18 days. Humidity remains consistent at 89% for both months, making them equally damp. For a detailed overview of October weather, see Tenby weather in October.
In comparing the weather between December and November, December tends to be slightly cooler, with minimum temperatures dropping to around 1°C (34°F) compared to November's minimum of 2°C (37°F). The average temperature also decreases from November’s 10°C (50°F) to December’s 8°C (48°F). Both months see a significant amount of precipitation, with December recording 156 mm (6.1 in) over 20 days, slightly surpassing November's 137 mm (5.4 in) across 19 days. Humidity levels are quite similar, with December at 89% and November at 90%. For more detailed insights on November weather, you can explore Tenby weather in November.
As December settles over Tenby, the weather starkly contrasts the milder months that precede it. The chill in the air brings temperatures that rarely rise above a brisk 8°C, accompanied by a notable 89% humidity that adds to the season's brisk feel. Frequent winter rains, with 20 days of precipitation totaling around 156 mm, paint a picture of a month that is both wet and cool, setting the stage for a cozy festive atmosphere. Those looking to explore Tenby in December should prepare for the elements and embrace the unique charm that this winter month brings. For more details on temperature trends and overall conditions, visit Tenby Climate.