December Weather in Port Talbot, United Kingdom

Last updated: March 17, 2025

December in Port Talbot, United Kingdom, presents a chilly maritime climate characterized by temperatures ranging from an average of 8°C (46°F), peaking at 13°C (55°F), and dipping to a frigid -1°C (30°F) during the night. This month is notably wet, accumulating 159 mm (6.3 in) of precipitation over 19 days. The atmosphere tends to be quite humid, with levels reaching a high of 89%, contributing to the brisk and damp feel typical of winter in this coastal town. Prepare for a season where cozy attire is a must, and the beauty of nature is enveloped in a moody, misty charm.

December Temperature in Port Talbot

As December rolls into Port Talbot, the landscape transforms into a winter wonderland, with temperatures reflecting the chill of the season. With a minimum of -1°C (30°F), the month maintains a brisk character, while the average temperature hovers around 8°C (46°F), offering a refreshing yet bearable cold. Daytime highs peak at a maximum of 13°C (55°F), subtly hinting at the eventual arrival of spring. Compared to the milder preceding months, December delivers a noticeable drop, marking the transition from autumn's lingering warmth to the heart of winter. Whether you're wrapped up in cozy layers or enjoying the fresh, crisp air, Port Talbot in December invites you to embrace its cooler, yet picturesque charm.

December Weather in Port Talbot: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Port Talbot, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434445495359626159544846
Data source: Temperature data for Port Talbot 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 Port Talbot

December in Port Talbot, United Kingdom, showcases a notable increase in precipitation as the year draws to a close. With 159 mm (6.3 in) of rain falling over 19 days, December is not only the wettest month of the year but also highlights a clear trend of escalating rainfall leading into winter. This surge follows November’s substantial 122 mm (4.8 in) and October’s 155 mm (6.1 in), signaling that the region often experiences its highest rainfall during the late autumn and early winter months. As the festive season approaches, residents can expect frequent showers, making December a month characterized by a blend of cozy celebrations and damp weather.

December Precipitation Trends in Port Talbot

The chart displays monthly precipitation patterns in Port Talbot, 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.
JanFebMarAprMayJunJulAugSepOctNovDec9311710355798583111103155122159
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Port Talbot

As the year draws to a close, December in Port Talbot sees humidity levels settle at a high 89%, closely mirroring the dampness experienced in October and November. This winter month maintains a notable consistency with the preceding months, reflecting the region's typically moist climate. Interestingly, while summer months like July and August boast lower humidity levels—around 70% to 73%—there's a clear trend of increasing moisture as the seasons transition into fall and winter. Overall, the data highlights a gradual rise in humidity from 80% in May and June to nearly 90% by year's end, emphasizing Port Talbot’s maritime influences and the lush, verdant landscape they nurture.

December Average Humidity in Port Talbot

This chart illustrates the average monthly humidity levels in Port Talbot, 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 Port Talbot

As the year winds down, December in Port Talbot offers a welcomed ease in UV exposure, marked by a low UV Index of 1. With a burn time extending to 45 minutes, residents and visitors can enjoy outdoor activities with minimal risk of sunburn. This trend of reduced UV levels juxtaposes the peak summer months, where the index soared to 8, indicating very high exposure. As daylight diminishes in winter and the sun's angle lowers, the UV Index reflects a seasonal drop that aligns with the overall trend of decreasing UV radiation from autumn to winter. For more information on UV levels throughout the year, check out Port Talbot UV Index.

Maximum UV Index Levels in Port Talbot for December

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

December in Port Talbot presents a striking contrast to the sun-drenched summer months, with the city basking in a modest 104 hours of sunshine. While the year kicks off with a generally low light count, it swiftly ascends, peaking in the summer with 410 hours in July. Notably, the month of December shows a significant drop from the previous months, reflecting a seasonal decline as the year comes to a close. This pattern emphasizes the cyclical nature of sunshine throughout the year, where spring blooms into longer days and vibrant warmth, while winter settles in with shorter, quieter daylight hours, creating a unique rhythm in Port Talbot's climate.

Monthly Sunshine Duration in Port Talbot: December Highlighted

The December sunshine duration represents the total number of hours Port Talbot 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: Port Talbot December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Port Talbot During December

When considering the likelihood of sunny weather in December in Port Talbot, the trend reflects a generally low probability, with only a 21% chance of sun. This positions December among the less favorable months for sunshine, further accentuated by the colder winter season that typically arrives in late autumn. As the year progresses from the sunnier days of April (55%), the chance of sunny weather gradually declines, hitting its low at this time of year. Interestingly, although there are slight fluctuations in sunshine likelihood in the preceding months, December consistently remains one of the least promising for sun, suggesting that residents and visitors alike should prepare for the drearier, cloud-laden skies that characterize this part of winter in the UK.

Percentage of Sunny Days in December in Port Talbot

The chart illustrates the percentage of sunny days in Port Talbot 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 Port Talbot experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%24%30%55%34%26%40%33%28%22%29%21%
Data source: Port Talbot December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Port Talbot in December

In Port Talbot, United Kingdom, December ushers in the shortest days of the year, offering only 7 hours of daylight. This decline in sunlight begins in November, where daylight dips to 8 hours, hinting at the onset of winter’s grip. As the months progress from the vibrant stretches of May and June, when daylight reaches its peak at 15 and 16 hours, the swift transition to winter is evident. The gentle decrease from October’s 10 hours to December's meager 7 hours starkly illustrates the ebb of natural light, inviting a time for cozy indoor activities as the long nights draw in. As daylight hours gradually increase again in January, residents may look forward to the return of brighter days ahead.

Average Daylight Hours in Port Talbot for December

The chart illustrates the variation in daylight duration in Port Talbot throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 24m9h 58m11h 55m13h 54m15h 38m16h 32m16h 3m14h 30m12h 35m10h 36m8h 50m7h 53m
Data source: Port Talbot daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Port Talbot

As winter settles in, December brings a notable uptick in wind speed to Port Talbot, averaging 6.3 m/s (14 mph). This is an increase from the previous months, where the winds were generally milder—especially in the summer when they dipped to a calm 3.7 m/s (8 mph) in both July and June. The invigorating December breeze can be attributed, in part, to the transition from autumn, which saw wind speeds hovering around 4.8 m/s (11 mph) in November. These trends highlight the dynamic shift in the coastal climate as the year draws to a close, with winter's biting gusts rearing up to signal a change in season.

Average December Wind Speed in Port Talbot

The chart displays monthly wind speed patterns in Port Talbot, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.66.55.44.25.23.73.74.64.15.54.86.3 m/s
Data source: Port Talbot December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Port Talbot Compares to Other Months

The weather in Port Talbot 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 Port Talbot and find detailed weather information for every month.

December and January showcase distinct weather patterns, despite their close proximity in the calendar year. December typically sees slightly milder temperatures, with an average of 8°C (46°F) compared to January's average of 6°C (43°F). The maximum temperatures remain similar, both peaking around 13°C (55°F to 57°F). However, December is wetter, with 159 mm (6.3 in) of precipitation over 19 days, while January experiences only 93 mm (3.6 in) over 12 days. While humidity remains high in both months, it is marginally lower in January at 88%, compared to December's 89%. For more specifics on January weather, you can visit Port Talbot weather in January.

December and February present contrasting yet somewhat similar weather conditions. In December, temperatures range from a minimum of -1°C (30°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). This month experiences significant precipitation, totaling 159 mm (6.3 in) over 19 days, accompanied by high humidity at 89%. In comparison, February sees slightly colder temperatures, with a minimum of -3°C (27°F) and a maximum of 15°C (58°F), averaging 7°C (44°F). Precipitation decreases to 117 mm (4.6 in) over 15 days, maintaining a similar humidity level of 88%. For more detailed information, you can refer to Port Talbot weather in February.

In December, the weather tends to be chillier, with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 13°C (55°F). It is also characterized by higher precipitation, averaging 159 mm (6.3 in) over 19 days, and humidity levels hovering around 89%. In contrast, March experiences slightly milder temperatures, with a minimum of -5°C (23°F) and a maximum of 17°C (63°F), while average precipitation decreases to 103 mm (4.1 in) over 17 days, accompanied by a lower humidity of 86%. For more details, check out Port Talbot weather in March.

December and April present contrasting weather conditions. In December, temperatures range from a chilly minimum of -1°C (30°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). This month is characterized by high precipitation, totaling 159 mm (6.3 in) over 19 days, and a humidity level of 89%. In contrast, April experiences warmer temperatures, with a minimum of -1°C (31°F) and a maximum reaching 20°C (68°F), averaging around 9°C (49°F). Less rain falls in April, with only 55 mm (2.2 in) over 9 days, and the humidity drops to 84%. For more details on weather conditions in April, check out Port Talbot weather in April.

In comparison to December, May experiences milder temperatures, with averages reaching 12°C (54°F) and daytime highs soaring up to 24°C (75°F). December, on the other hand, is much colder, featuring an average of 8°C (46°F) and maximum temperatures of just 13°C (55°F). Rainfall is also notably less in May, with only 78 mm (3.1 in) across 11 rainy days, compared to December’s 159 mm (6.3 in) over 19 days. Additionally, humidity levels are slightly lower in May at 80% compared to December’s high of 89%. For a more detailed overview, you can check out Port Talbot weather in May.

The weather in December is notably colder than in June, with December's average temperature hovering around 8°C (46°F) and maximums reaching only 13°C (55°F). In contrast, June brings warmer temperatures, with averages soaring to 15°C (59°F) and highs of 26°C (80°F). Additionally, December experiences more precipitation, accumulating around 159 mm (6.3 in) over 19 days, while June has only 84 mm (3.3 in) across 14 days. Humidity levels are slightly higher in December at 89%, compared to June's 80%. For more specific details about June weather, you can refer to Port Talbot weather in June.

The contrast between December and July weather is quite striking. In December, temperatures range from a chilly -1°C (30°F) at night to a mild 13°C (55°F) during the day, with an average of 8°C (46°F). The month sees considerable precipitation of 159 mm (6.3 in) spread over 19 days, accompanied by high humidity at 89%. In stark contrast, July offers a warm climate with temperatures ranging from a comfortable 9°C (48°F) at night to a pleasant 27°C (80°F) during the day, averaging 17°C (63°F). Precipitation is significantly lower at 83 mm (3.3 in) over 13 days, and humidity drops to a more moderate 70%. For more details on July weather, you can visit Port Talbot weather in July.

December weather in Port Talbot is characterized by lower temperatures, ranging from a minimum of -1°C (30°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). The month sees significant precipitation, totaling 159 mm (6.3 in) over 19 days, along with high humidity levels at 89%. In contrast, August offers a much milder climate, with temperatures varying from a minimum of 9°C (48°F) to a maximum of 27°C (80°F) and an average of 16°C (62°F). Rainfall is also notable but less intense, with 111 mm (4.4 in) over just 18 days and lower humidity at 73%. This contrast highlights the chilly, damp conditions of December compared to the warm and relatively drier weather of August. For more details on August weather, visit Port Talbot weather in August.

In December, the weather is significantly colder compared to September, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 13°C (55°F) and an average of 8°C (46°F). In contrast, September enjoys milder temperatures, with a minimum of 5°C (42°F) and a maximum of 26°C (80°F), averaging around 15°C (59°F). Additionally, December sees higher precipitation levels, totaling 159 mm (6.3 inches) over 19 days, while September has less rain at 103 mm (4.1 inches) across 13 days. The humidity also increases in December, reaching 89% compared to 79% in September. For a closer look at September's weather specifics, you can visit Port Talbot weather in September.

October and December exhibit distinct differences in weather patterns. October tends to be milder, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 21°C (69°F), averaging around 12°C (54°F). It also experiences slightly less precipitation, totaling 155 mm (6.1 in) over 17 days. In contrast, December sees colder temperatures, with a minimum of -1°C (30°F) and a maximum of 13°C (55°F), averaging around 8°C (46°F). The month also brings increased rainfall, accumulating 159 mm (6.3 in) over 19 days. Notably, both months share a high humidity level of 89%. For more details on October weather, you can visit Port Talbot weather in October.

In comparing the weather of December and November, both months experience similar minimum temperatures, hovering around -1°C (30°F). However, November generally holds a slightly warmer average temperature of 9°C (48°F) compared to December's 8°C (46°F), with December reaching a maximum of 13°C (55°F) while November peaks at 16°C (60°F). Notably, December sees increased precipitation, totaling 159 mm (6.3 in) over 19 days, which is higher than November's 122 mm (4.8 in) over 16 days. Humidity levels remain quite comparable, with December at 89% and November at 90%. For more detailed insights, you can refer to Port Talbot weather in November.

Compare Port Talbot's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Port Talbot

As December unfolds in Port Talbot, residents experience a distinct shift in weather characterized by cool temperatures and high humidity levels that often elevate the chill factor. With frequent rainfall across nearly two-thirds of the month, the atmosphere is markedly wetter compared to the drier spells found in preceding months. This transition into winter not only brings overcast skies but also a cozy ambiance perfect for holiday festivities. To learn more about how the weather in December compares to other times of the year, visit Port Talbot Climate.