December Weather in Gloucester, United Kingdom

Last updated: March 17, 2025

In December, Gloucester experiences a distinctive blend of winter weather, characterized by an average temperature of 6°C (44°F), with maximum highs reaching 14°C (57°F) and chilling lows dipping to -8°C (19°F). The month witnesses significant precipitation, totaling 86 mm (3.4 in) across approximately 15 days, creating a damp atmosphere with humidity levels soaring to an impressive 92%. This combination of cool temperatures and frequent rain makes December a month perfect for gathering indoors, while the crisp air invites those who wish to explore the charming streets of this historic town.

December Temperature in Gloucester

As winter settles in, December in Gloucester showcases a notable drop in temperatures, with a minimum of -8°C (19°F) and an average of 6°C (44°F). This month marks a distinct chill compared to the milder temperatures of the preceding months, as the city transitions from the late autumn coolness. While the maximum temperature stays relatively low at 14°C (57°F), the shift from the more temperate averages seen from May to November emphasizes the onset of winter's chill. This trend reflects a gradual descent into the coldest season, making December a time for warmth and coziness indoors as the landscape transforms into a frosty scene.

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

The chart illustrates December temperature patterns in Gloucester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345485460646258524643
Data source: Temperature data for Gloucester 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 Gloucester

In December, Gloucester experiences a notable uptick in precipitation, with 86 mm (3.4 in) of rain falling over an average of 15 days—making it one of the wettest months of the year. This increase follows November's 65 mm (2.6 in) and reflects a shift toward the wetter winter months. The trend of rising precipitation is striking when compared to the drier spring months, such as April, which sees only 48 mm (1.9 in). As the year draws to a close, the persistent rain not only saturates the landscape but also sets the scene for the chilly, gray days typical of a Gloucester winter, reminding residents of the shifting seasons and the replenishing nature of this wet weather.

December Precipitation Trends in Gloucester

The chart displays monthly precipitation patterns in Gloucester, 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.
JanFebMarAprMayJunJulAugSepOctNovDec536068487473637353966686
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gloucester

As December settles in Gloucester, the humidity remains a notable feature, holding steady at 92%, similar to the preceding month of November. This marks a continuation of the town's trend towards higher humidity levels during the winter months. Throughout the year, humidity typically starts off at a peak in January at 91%, gradually decreasing over the spring and summer to a low of 71% in July. However, as autumn approaches, these levels rise again, with October and November showcasing a significant increase, reflecting the seasonal shift. In December, the persistent 92% humidity underscores the chilly, damp climate that characterizes this time of year, inviting locals and visitors alike to embrace the cozy indoor gatherings that the season inspires.

December Average Humidity in Gloucester

This chart illustrates the average monthly humidity levels in Gloucester, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gloucester

In December, Gloucester experiences a low UV Index of 1, indicating minimal sun exposure risk. This trend continues from November, where the UV levels were also low, making both months ideal for outdoor activities without significant sunburn concerns, as the burn time remains a generous 45 minutes. As the year transitions to colder months, the UV Index generally drops, with values peaking in the summer months—reaching up to 8 in June and July—reflecting a clear seasonal pattern. For those looking to plan their outdoor activities during the winter, the December UV Index offers a reassuring indication that sun safety is less of a concern. For more detailed insights, visit Gloucester UV Index.

Maximum UV Index Levels in Gloucester for December

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

In December, Gloucester experiences a dip in sunshine hours, with just 108 hours of bright skies, signaling the onset of winter. This month marks a notable decrease from the vibrant 381 hours in May, when the days are at their longest and sunniest. As the year progresses, the trend reveals a steady decline in sunlight, peaking in the summer months of June and July, where residents bask in a remarkable 364 and 395 hours, respectively. However, as autumn gives way to winter, the sun begins to set earlier, resulting in lower counts, particularly in November and December. Despite this seasonal shift, Gloucester's charm remains undiminished, as the cozy glow of winter festivities beautifully contrasts the brief moments of December sunshine.

Monthly Sunshine Duration in Gloucester: December Highlighted

The December sunshine duration represents the total number of hours Gloucester 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.
JanFebMarAprMayJunJulAugSepOctNovDec89h142h194h308h381h364h395h347h284h231h131h108h
Data source: Gloucester December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gloucester During December

In December, Gloucester, United Kingdom, sees a notably lower chance of sunny weather, with only an 18% probability of sunshine. This marks it as one of the least bright months in the year, eclipsed only by January and October, which hover around similar figures. The trend indicates a gradual increase in sunshine likelihood from the very gloomy winter months to the more vibrant springtime, as seen in April's 51% sunlight probability. However, during December, the limited daylight hours and frequent rain mean that residents often brace for quite a dull end to the year, making those rare sunny days all the more cherished.

Percentage of Sunny Days in December in Gloucester

The chart illustrates the percentage of sunny days in Gloucester 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 Gloucester experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%23%27%51%32%26%37%25%26%24%31%18%
Data source: Gloucester December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gloucester in December

As December unfolds in Gloucester, the days grow markedly shorter, with only 7 hours of daylight gracing the skies. This decline marks a stark contrast to the vibrant longer days of spring and summer, where daylight peaked at a generous 16 hours in June and July. Following the gradual decrease from the summer months, daylight continues to dwindle, dropping to 8 hours in both November and January, as the year cycles back to its darkest point. This seasonal rhythm highlights the transition from the sun-drenched days of summer to the cozy, candlelit evenings typical of December, inviting residents to embrace the beauty of winter's shorter, yet enchanting days.

Average Daylight Hours in Gloucester for December

The chart illustrates the variation in daylight duration in Gloucester throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 22m9h 57m11h 55m13h 55m15h 40m16h 34m16h 5m14h 31m12h 35m10h 36m8h 49m7h 51m
Data source: Gloucester daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Gloucester

As winter settles in, December in Gloucester ushers in a notable shift in the winds, with an average wind speed of 4.5 m/s (10 mph), mirroring the gusty conditions of October. This increase evokes the bracing chill that often accompanies the festive season. While the winter months generally herald stronger breezes, December's winds are a reminder of the gradual transition from the comparatively calm summer months, such as July's low average of 3.0 m/s (7 mph). Interestingly, the wind speeds tend to fluctuate throughout the year, peaking in the transitional months of February and October, suggesting a pattern where spring and autumn bring invigorating gusts. As the year wraps up, the December winds invite both locals and visitors to experience Gloucester's charm amidst the crisp, cool air.

Average December Wind Speed in Gloucester

The chart displays monthly wind speed patterns in Gloucester, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.25.24.43.34.13.33.03.73.34.53.84.5 m/s
Data source: Gloucester December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Gloucester Compares to Other Months

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

In December, temperatures typically range from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), with an average of around 6°C (44°F). This month experiences considerable precipitation, totaling 86 mm (3.4 in) over about 15 days, alongside high humidity levels at 92%. In contrast, January sees slightly milder conditions, with temperatures fluctuating between -4°C (25°F) and 14°C (57°F), yielding an average of 5°C (41°F). Precipitation decreases significantly to 53 mm (2.1 in) over just 10 days, and humidity remains similar at 91%. For more details on January weather conditions, check out Gloucester weather in January.

December and February present somewhat similar weather patterns, yet there are notable differences. In December, temperatures range from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), with an average of 6°C (44°F), while February sees slightly milder temperatures, with a range from -6°C (22°F) to 18°C (64°F) and an average of 6°C (43°F). Precipitation levels are higher in December at 86 mm (3.4 in) over 15 days compared to February's 60 mm (2.3 in) over 13 days. Humidity in December is also a bit higher at 92% compared to February’s 89%. For more information on February weather specifics, you can visit Gloucester weather in February.

December and March present distinct weather contrasts. In December, temperatures typically range from a low of -8°C (19°F) to a comfortable high of 14°C (57°F), with an average of 6°C (44°F). The month experiences significant precipitation of 86 mm (3.4 in) over approximately 15 days, coupled with high humidity at 92%. In comparison, March sees a slight increase in temperature, with a minimum of -6°C (22°F) and a maximum of 21°C (70°F), averaging 7°C (45°F). Precipitation decreases to 68 mm (2.7 in) over 14 days, and humidity levels drop to 86%. For a more detailed look at March weather, you can visit Gloucester weather in March.

In December, the weather is significantly colder, with temperatures ranging from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), and average temperatures hovering around 6°C (44°F). The month sees considerable precipitation, totaling 86 mm (3.4 in) over about 15 days, accompanied by high humidity levels of 92%.

In contrast, April offers a much milder climate, with temperatures varying from -3°C (26°F) to a warm 24°C (75°F) and an average of 9°C (49°F). Additionally, April experiences less rainfall, totaling 48 mm (1.9 in) over just 9 days, and a slightly lower humidity of 85%. For a more detailed look at the weather in April, you can visit Gloucester weather in April.

In December, the weather in Gloucester is quite cold, with temperatures ranging from a chilly -8°C (19°F) to a mild 14°C (57°F) and an average temperature of 6°C (44°F). The month is characterized by high humidity at 92% and significant precipitation of 86 mm (3.4 in) spread over about 15 days. In contrast, May brings a noticeable warmth, with temperatures seeing a minimum of 0°C (32°F) and climbing to a comfortable maximum of 26°C (79°F), averaging 12°C (54°F). Precipitation in May is lower at 74 mm (2.9 in) over about 12 days, accompanied by reduced humidity at 79%. Overall, May offers a more pleasant and warm climate compared to the cold and damp December. For more specifics, check out Gloucester weather in May.

December and June present contrasting weather patterns, reflecting the shift from winter to summer. In December, temperatures range from a chilly -8°C (19°F) at their lowest to a mild 14°C (57°F) at their highest, averaging around 6°C (44°F). The month experiences significant precipitation, totaling 86 mm (3.4 in) over 15 days, coupled with high humidity levels at 92%. In stark contrast, June boasts temperatures that range from a minimum of 6°C (43°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F). Precipitation is less prevalent in June, with a total of 73 mm (2.9 in) spread over just 11 days, while humidity drops to a more comfortable 80%. For more detailed insights into the pleasant weather of this summer month, refer to Gloucester weather in June.

In December, the weather is notably colder, with temperatures ranging from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), and an average temperature of 6°C (44°F). This month experiences substantial precipitation, accumulating 86 mm (3.4 in) over about 15 days, contributing to a high humidity level of 92%. In contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (88°F) and an average of 18°C (64°F). The precipitation in July is lower, totaling 63 mm (2.5 in) across 11 days and accompanied by a more comfortable humidity of 71%. For more details on July conditions, check out Gloucester weather in July.

December and August present striking contrasts in weather conditions. In December, temperatures can plummet to a minimum of -8°C (19°F), with an average of 6°C (44°F) and a maximum of 14°C (57°F). This winter month also experiences higher humidity at 92% and more precipitation, averaging 86 mm (3.4 in) across about 15 days. In contrast, August offers a much warmer climate, with a minimum temperature of 7°C (45°F), an average of 17°C (62°F), and peaks reaching 33°C (91°F). This summer month has lower humidity at 76% and less rainfall, totaling 73 mm (2.9 in) over approximately 12 days. For a closer look at August weather specifics, you can visit Gloucester weather in August.

In comparison to September, December experiences significantly colder temperatures, with a minimum of -8°C (19°F) and an average of 6°C (44°F), while September boasts a minimum of 3°C (37°F) and averages a much warmer 14°C (58°F). The maximum temperature in December reaches only 14°C (57°F), a stark contrast to September's high of 29°C (84°F). Additionally, December receives more precipitation, with 86 mm (3.4 in) over about 15 days, compared to September’s 53 mm (2.1 in) over just 8 days. The humidity in December is also higher at 92%, compared to September's 82%. For more details, you can check Gloucester weather in September.

December weather is generally colder than October, with average temperatures ranging from a minimum of -8°C (19°F) to a maximum of 14°C (57°F). In contrast, October enjoys milder temperatures, with a minimum of -1°C (31°F) and a maximum of 23°C (74°F). Both months experience a significant amount of precipitation, with December receiving 86 mm over 15 days and October slightly more at 96 mm over 14 days. Humidity levels are high in both months, at 92% in December and 90% in October, but December’s colder temperatures make it feel more frigid overall. For more specifics about October weather in Gloucester, you can visit Gloucester weather in October.

December's weather is markedly colder than November's, with average temperatures dropping from 8°C (46°F) in November to just 6°C (44°F) in December. The minimum temperature in December reaches as low as -8°C (19°F), compared to -3°C (27°F) in November. Additionally, December sees increased precipitation, with 86 mm (3.4 in) falling over 15 days, while November experiences slightly less at 65 mm (2.6 in) over 13 days. Despite the cold and moisture, both months share a high humidity level of 92%. For more detailed insights into November's climate, you can check Gloucester weather in November.

Compare Gloucester's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Gloucester

As December settles in, Gloucester experiences a significant shift from the milder conditions of previous months. This chilly winter month brings cooler temperatures, with averages dipping to around 6°C and highs barely reaching 14°C. Frosty nights become the norm, dropping down to -8°C, while the city's humidity peaks at a notable 92%, creating a crisp, damp atmosphere. Additionally, with approximately 15 days of precipitation accumulating to about 86 mm, residents can expect a fair share of rainy spells. As the year draws to a close, the blend of cold temperatures and wet weather truly sets December apart from the more temperate months. For those interested in a broader view of the area's climatic trends, be sure to check out Gloucester Climate.