December Weather in Chepstow, United Kingdom

Last updated: March 17, 2025

December in Chepstow, United Kingdom, is characterized by a chilly climate where temperatures can range from a maximum of 14°C (57°F) to a minimum of -8°C (17°F). The average temperature hovers around a brisk 7°C (44°F), making warm attire essential for outdoor activities. With 93 mm (3.7 in) of precipitation spread over 15 days, visitors can expect frequent rain, contributing to a high humidity level of 89%. This combination of cold temperatures and damp conditions creates a typical winter atmosphere in this picturesque town.

December Temperature in Chepstow

In December, Chepstow, United Kingdom, experiences a notable drop in temperatures as winter sets in. The month presents a chilly landscape with minimum temperatures plunging to -8°C (17°F), while the average hovers around 7°C (44°F), reaching a maximum of 14°C (57°F). This marks a significant decline from the more temperate autumn months, showcasing a transition that invites crisp air and potentially frosty mornings. As daylight fades, the cold may remind residents and visitors alike to bundle up, making the festive season all the more cozy and inviting in this picturesque town.

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

The chart illustrates December temperature patterns in Chepstow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345495460646258534644
Data source: Temperature data for Chepstow 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 Chepstow

December brings a notable uptick in precipitation to Chepstow, United Kingdom, with 93 mm (3.7 in) of rain over 15 days. This marks a significant increase compared to the earlier months, following November's 72 mm (2.8 in) over the same number of days. As winter settles in, December typically experiences a wetter climate, contributing to the peak of the rainy season that starts to emerge in the autumn. The shift from the milder autumn months to the colder, wetter winter highlights a consistent trend where precipitation intensifies as the year wraps up, making December one of the rainiest months of the year in this picturesque region.

December Precipitation Trends in Chepstow

The chart displays monthly precipitation patterns in Chepstow, 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.
JanFebMarAprMayJunJulAugSepOctNovDec546774527375637554987293
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Chepstow

As December arrives in Chepstow, the humidity remains notably high, hovering around 89%, a stark contrast to the drier summer months. Throughout the year, humidity levels have showcased a clear seasonal trend: beginning with a peak of 90% in November, they gradually taper off in late spring, reaching their lowest point in July at 70%. However, as winter sets in, humidity starts to climb again, reflecting the colder, wetter conditions typical of the season. This cyclical pattern not only underscores the significant impact of the British climate but also hints at the rich, lush landscape that characterizes the region throughout the year.

December Average Humidity in Chepstow

This chart illustrates the average monthly humidity levels in Chepstow, 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 Chepstow

In December, Chepstow experiences a low UV Index of 1, indicating minimal risk of harm from unprotected sun exposure. With a burn time of 45 minutes, this month marks a notable decrease in UV intensity compared to the sunnier months of summer, where the index peaked at 8. Following the trend of lower UV levels after the vibrant autumn months, December allows residents and visitors to enjoy outdoor activities with a decreased need for sun protection. As the seasons turn, the UV index in Chepstow serves as a reminder of the importance of being mindful of sun exposure year-round. For more detailed insights, check out Chepstow UV Index.

Maximum UV Index Levels in Chepstow for December

The chart shows the monthly maximum UV Index (UVI) for Chepstow 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Chepstow 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 Chepstow

In Chepstow, United Kingdom, the winter months usher in a notable decline in sunshine, with December basking in a modest 105 hours of sunlight. As the year draws to a close, this figure reflects a significant contrast to the earlier months, particularly the highpoint of summer when July shines with an impressive 397 hours. The transition from the elongated days of May and June, which record 379 and 360 hours respectively, showcases the marked seasonal shift. While December’s daylight may be limited, it still offers a cozy charm, inviting residents and visitors alike to embrace the crisp, cool air and the festive spirit that the holiday season brings.

Monthly Sunshine Duration in Chepstow: December Highlighted

The December sunshine duration represents the total number of hours Chepstow 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.
JanFebMarAprMayJunJulAugSepOctNovDec86h138h192h306h379h360h397h347h281h229h127h105h
Data source: Chepstow December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chepstow During December

In Chepstow, the likelihood of sunny weather in December is quite low, hovering around 19%—the second lowest of the year after February. As the year progresses, there’s a noticeable trend toward increased sunshine during the spring months, peaking in April at a promising 51%. However, as autumn transitions into winter, the chances of sunshine sharply decline, with only sporadic bright days anticipated in the final month of the year. This pattern highlights the seasonal shift that often leaves December feeling rather gloomy compared to the sunnier spells of spring and early summer.

Percentage of Sunny Days in December in Chepstow

The chart illustrates the percentage of sunny days in Chepstow 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 Chepstow experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%22%26%51%32%26%39%27%27%22%33%19%
Data source: Chepstow December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chepstow in December

As December arrives in Chepstow, the long, cozy nights begin to set in, with daylight dipping to just 7 hours. This month marks the annual low, contrasting sharply with the height of summer in June and July, which bask in 16 hours of vibrant sunshine. Following the gradual decrease from the preceding months—where 8 hours of daylight graced November—December serves as a reminder of the seasonal transition towards winter's embrace. Looking back, from the bright 15 hours in May to the meager light of December, the shift emphasizes nature's rhythm, as the days become shorter and the nights extend, inviting a time for reflection and warmth indoors.

Average Daylight Hours in Chepstow for December

The chart illustrates the variation in daylight duration in Chepstow throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 21m9h 57m11h 55m13h 55m15h 41m16h 36m16h 6m14h 31m12h 35m10h 35m8h 47m7h 50m
Data source: Chepstow daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Chepstow

As December arrives in Chepstow, the wind makes a noticeable comeback, with an average speed of 4.4 m/s (10 mph). This marks a slight uptick from the previous month and aligns closely with the gusts felt in both January and October. Throughout the year, the wind patterns reveal a dynamic character; after a gentle lull in the summer months, where speeds dipped as low as 2.9 m/s (6 mph) in July, the colder seasons bring a refreshing vigor. The steady increase in wind speed as winter approaches seems to echo a natural rhythm, inviting residents and visitors alike to embrace the crisp air and vibrant landscapes of Chepstow during this festive month.

Average December Wind Speed in Chepstow

The chart displays monthly wind speed patterns in Chepstow, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.15.14.33.24.03.22.93.63.14.33.64.4 m/s
Data source: Chepstow December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Chepstow Compares to Other Months

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

December and January display some distinct differences in weather patterns. December experiences lower average temperatures, with a range from a chilly -8°C (17°F) to a maximum of 14°C (57°F), while January is slightly milder, with minimum temperatures around -4°C (25°F) and the same maximum of 14°C (57°F). In terms of precipitation, December sees more rainfall, totaling 93 mm (3.7 in) over 15 days, compared to January's 54 mm (2.1 in) spread over just 10 days. Additionally, humidity levels remain high in both months, with December at 89% and January slightly lower at 88%. For a closer look at January's weather specifics, check out Chepstow weather in January.

December and February offer quite distinct experiences in terms of weather. In December, temperatures take a sharper dip, with highs averaging around 7°C (44°F) and lows reaching a chilling -8°C (17°F). The month also sees more precipitation, totaling 93 mm (3.7 in) over approximately 15 days, accompanied by a high humidity of 89%. In contrast, February experiences slightly milder conditions, with average temperatures around 6°C (43°F) and highs peaking at 18°C (64°F). Precipitation decreases to 67 mm (2.6 in) across about 13 days, with humidity remaining relatively stable at 88%. For a more detailed perspective on the weather during this period, you can check out Chepstow weather in February.

December weather typically features cooler temperatures, with a minimum around -8°C (17°F) and a maximum of 14°C (57°F), while March sees slightly milder conditions, ranging from a minimum of -6°C (21°F) to a maximum of 21°C (70°F). Both months experience a similar average temperature of around 7°C (44°F to 45°F), but March tends to be drier, with only 74 mm (2.9 in) of precipitation over 14 days compared to December's 93 mm (3.7 in) across 15 days. Moreover, the humidity levels in December are slightly higher at 89%, compared to 86% in March. For more detailed information, you can check Chepstow weather in March.

December and April present quite contrasting weather conditions. In December, temperatures can dip to a minimum of -8°C (17°F), with an average of 7°C (44°F) and a maximum of 14°C (57°F). The month is characterized by higher precipitation levels, totaling 93 mm (3.7 in) over approximately 15 days, along with elevated humidity at 89%. In contrast, April enjoys milder temperatures, ranging from a minimum of -3°C (28°F) to a maximum of 23°C (74°F), with an average of 9°C (49°F). Precipitation in April is lower at 52 mm (2.0 in) spread over 9 days, and humidity decreases slightly to 84%. For a more detailed look at April's weather, visit Chepstow weather in April.

December and May present quite contrasting weather conditions. In December, temperatures typically range from a chilly -8°C (17°F) at their minimum to a milder 14°C (57°F) at their maximum, with an average of around 7°C (44°F). This month also sees a significant amount of precipitation, averaging 93 mm (3.7 in) over 15 days and a higher humidity of 89%.

In contrast, May brings a much more temperate climate, with minimum temperatures of 0°C (33°F) and maximums reaching up to 26°C (80°F). The average temperature sits comfortably at 12°C (54°F), accompanied by less precipitation—about 73 mm (2.9 in) over 12 days—and lower humidity at 80%. These significant differences highlight May as a month of warmth and drier conditions compared to the cold, damp characteristics of December. For more details on May weather, you can check Chepstow weather in May.

In December, the weather is quite cold, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (57°F) and an average of 7°C (44°F). This month experiences significant precipitation, totaling 93 mm (3.7 in) over about 15 days, and a high humidity level of 89%. In contrast, June brings much warmer temperatures, with a minimum of 6°C (44°F), an average of 16°C (61°F), and a maximum of 30°C (87°F). Precipitation in June is lower at 75 mm (3.0 in) over 12 days, and humidity decreases slightly to 80%. For more specific details about the weather in June, you can visit Chepstow weather in June.

In December, temperatures in Chepstow range from a chilly minimum of -8°C (17°F) to a mild maximum of 14°C (57°F), with an average temperature of around 7°C (44°F). The month experiences significant precipitation, totaling 93 mm (3.7 in) over 15 days, and the humidity remains high at 89%. In contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 30°C (87°F), resulting in a comfortable average of 18°C (64°F). The summer month sees less rainfall, with 63 mm (2.5 in) over just 10 days and a lower humidity level of 70%. For more details, check Chepstow weather in July.

In December, temperatures can plunge to a minimum of -8°C (17°F), with average highs reaching only 14°C (57°F), making it a much colder month compared to August, which enjoys a minimum of 7°C (45°F) and peaks at a warm 32°C (89°F). While December experiences a higher average humidity at 89% and sees precipitation over 15 days with a total of 93 mm (3.7 in), August is comparatively drier, with only 75 mm (2.9 in) of rain over 11 days and a comfortable humidity of 73%. For those looking to explore the weather in August more thoroughly, visit Chepstow weather in August.

When comparing the weather between December and September, significant differences emerge. In December, temperatures drop considerably, with a minimum of -8°C (17°F) and an average of 7°C (44°F), while the maximum reaches only 14°C (57°F). This colder month also sees higher humidity levels at 89% and more precipitation, accumulating to 93 mm (3.7 in) over about 15 days. In contrast, September experiences milder temperatures, with a minimum of 3°C (38°F) and an average of 14°C (58°F), peaking at a comfortable 29°C (84°F). Precipitation is lower in September, totaling 54 mm (2.1 in) in just 8 days, along with a slightly reduced humidity level of 79%. For more detailed information on weather patterns during September, you can check Chepstow weather in September.

In comparing the weather patterns of December and October, we observe notable differences in temperature and precipitation. December experiences colder conditions, with a minimum temperature of -8°C (17°F) and an average of 7°C (44°F), contrasting sharply with October's milder range, where minimum temperatures are around -1°C (31°F) and averages reach 11°C (53°F). Both months see similar levels of precipitation, with December recording 93 mm (3.7 in) over 15 days, while October has slightly higher precipitation at 98 mm (3.9 in) across 13 days. Interestingly, both months share the same humidity level of 89%, making the air feel similarly damp in both periods. For more detailed insights into October's climate, check out Chepstow weather in October.

December generally brings chillier weather compared to November, with average temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (57°F), whereas November sees milder temperatures between -2°C (28°F) and 17°C (62°F). Precipitation increases in December, totaling 93 mm (3.7 in) over approximately 15 days, whereas November has slightly less at 72 mm (2.8 in) across 13 days. Humidity levels are quite similar, standing at 89% in December and 90% in November. For more specific insights into November's climate, check out Chepstow weather in November.

Compare Chepstow's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Chepstow

As December rolls in, Chepstow experiences a notable shift in weather, with temperatures dipping significantly compared to the milder months. The chill of winter sets the scene, with nights that can plunge well below freezing, bringing a distinct crispness to the air. The month also sees increased precipitation, resulting in frequent rainy days that add a layer of gloominess, balanced by the beauty of winter landscapes. With humidity levels peaking at 89%, the air feels heavy and damp, contrasting sharply with the dryer summer months. This unique blend of chill and moisture offers a distinctly atmospheric experience. For more insights on how December's weather stacks up throughout the year, visit Chepstow Climate.