December Weather in Bangor, United Kingdom

Last updated: March 17, 2025

In Bangor, United Kingdom, December presents a chilly climate, with average temperatures hovering around 7°C (45°F). While the maximum can reach a milder 13°C (55°F), temperatures can drop to a brisk 2°C (36°F). This month is characterized by considerable precipitation, accumulating 118 mm (4.7 in) over approximately 18 days, adding to the overall wintery atmosphere. With a humidity level of 86%, December in Bangor is a time for cozy indoors and perhaps a festive outing, as the rain often turns the city into a picturesque winter scene.

December Temperature in Bangor

In December, Bangor, United Kingdom, experiences a noticeable chill as temperatures begin to dip, offering a taste of winter. With minimums around 2°C (36°F) and an average of 7°C (45°F), the month showcases a steady coolness compared to the milder autumn months preceding it. Daytime highs reach up to 13°C (55°F), but the shift from the previous months’ averages signals the onset of winter’s embrace. This transition reflects a broader trend, as Bangor’s temperatures gradually fall from the mild peaks of late summer, making December a time for cozy layers and festive spirit amidst the crisp air.

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

The chart illustrates December temperature patterns in Bangor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434344465055575856524845
Data source: Temperature data for Bangor generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Bangor

In Bangor, United Kingdom, December wraps up the year with a notable precipitation total of 118 mm (4.7 inches), making it one of the wetter months. With 18 days of rain, it aligns closely with the trend of increasing rainfall seen in the preceding months, particularly November, which recorded the highest precipitation of the year at 128 mm. This pattern reflects Bangor's typical winter climate, where the dark, damp days contribute to a significant accumulation of moisture. The consistent precipitation throughout autumn and into December showcases a seasonal transition that prepares the region for the harsher winter months ahead, emphasizing the importance of rain in the local ecosystem.

December Precipitation Trends in Bangor

The chart displays monthly precipitation patterns in Bangor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec781119445699310812995125129118
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bangor

In Bangor, December brings a humility level that sits at a comfortable 86%, subtly maintaining the trend of increased moisture as the year winds down. Following a gradual rise through the autumn months, where November peaks at 90%, December shows a slight moderation, reminiscent of the humidity seen in the summer. This winter month reflects the enduring dampness typical of Bangor, characterized by relatively high humidity across the year, fluctuating minimally from January's 87% down to April's 85%. This steadiness provides a hint of the coastal climate's influence, where humidity remains a steadfast companion even as colder temperatures settle in.

December Average Humidity in Bangor

This chart illustrates the average monthly humidity levels in Bangor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bangor

In December, Bangor, United Kingdom experiences a UV Index of 1, categorizing it as a low exposure month with a burn time of 45 minutes. This trend marks a return to minimal UV radiation following the higher levels of summer, where June and July peaked at 8—classified as very high. As the year progresses from January's UV level of 1 to April's moderate 5, the UV index typically rises during spring and early summer before tapering off again in the colder months. December’s low UV index serves as a reminder to enjoy the winter sun safely, while still providing ample opportunity for outdoor activities. For more detailed insights, visit Bangor UV Index.

Maximum UV Index Levels in Bangor for December

The chart shows the monthly maximum UV Index (UVI) for Bangor 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568865321
Data source: Bangor 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 Bangor

In December, Bangor, United Kingdom, experiences a decidedly diminished amount of sunshine, with only about 90 hours illuminating its winter days. This drop marks a sharp contrast to the preceding months, where the sun trends decidedly upward, peaking in the vibrant hues of May and July with over 400 hours of sunshine. The gradual decline in daylight hours begins in autumn, as November sees 120 hours before the final stretch of the year settles in. As winter tightens its grip, December's sunshine serves as a gentle reminder of the longer days to come, bridging the gap back to the sunnier months ahead. Whether enjoying a brisk walk under the pale winter sun or cozying up indoors, the quiet beauty of Bangor in December offers a unique charm amidst the dwindling light.

Monthly Sunshine Duration in Bangor: December Highlighted

The December sunshine duration represents the total number of hours Bangor 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.
JanFebMarAprMayJunJulAugSepOctNovDec82h153h221h334h413h409h415h361h302h233h120h90h
Data source: Bangor December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bangor During December

In December, the likelihood of sunshine in Bangor, United Kingdom, drops to a mere 15%, making it one of the gloomiest months of the year. This trend reflects a gradual decline in sunny days as the calendar turns from late autumn to winter, with November having a slightly better chance at 19%. The decrease in sunlight is amplified as we move from the brighter spring months, where the chances can be as high as 48% in April, down to the depths of winter. As the days get colder and shorter, residents can expect more overcast skies and fewer opportunities to bask in the sun.

Percentage of Sunny Days in December in Bangor

The chart illustrates the percentage of sunny days in Bangor 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 Bangor experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%25%21%48%34%25%34%22%22%19%19%15%
Data source: Bangor December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bangor in December

In Bangor, United Kingdom, December brings a return to the shorter days of winter, with daylight lasting just 7 hours. This seasonal shift follows a gradual increase in light from the darker winter months of January and February, where daylight averages around 7 to 9 hours. Spring breathes new life into the days, as March and April see a noticeable rise, peaking at an impressive 17 hours in June. The cycle then ebbs, with daylight decreasing from the long summer days of July to the crisp autumn evenings of October and November. As we close the year, December's daylight reflects the natural rhythm of the seasons, reminding us of the fleeting nature of sunshine in the heart of winter.

Average Daylight Hours in Bangor for December

The chart illustrates the variation in daylight duration in Bangor throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 52m9h 42m11h 54m14h 9m16h 9m17h 13m16h 38m14h 49m12h 39m10h 25m8h 23m7h 17m
Data source: Bangor daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Bangor

As December settles over Bangor, the winds begin to pick up, with an average speed of 6.6 m/s (15 mph), reflecting a noticeable shift from the calmer summer months. This increase marks a trend of escalating winds as the year draws to a close, showing significant elevation from the summer's low of 3.4 m/s (8 mph) in July. While November brings winds at 6.9 m/s (15 mph), December maintains a similar intensity, creating a brisk atmosphere that invites residents to bundle up and enjoy the seasonal charm. This transitional period, characterized by a return to crisper winds, hints at the upcoming winter's chill while echoing the breezy days of late autumn.

Average December Wind Speed in Bangor

The chart displays monthly wind speed patterns in Bangor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.08.46.04.65.24.93.43.94.26.16.96.6 m/s
Data source: Bangor December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Bangor Compares to Other Months

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

In December, the weather is slightly milder with an average temperature of 7°C (45°F) and a maximum of 13°C (55°F), while January sees a slight drop in temperatures, averaging 6°C (44°F) with a similar high of 13°C (56°F). Precipitation levels are higher in December, with 118 mm (4.7 in) falling over 18 days compared to January's 78 mm (3.1 in) over 14 days, indicating that December is generally wetter. Humidity remains relatively consistent, with December at 86% and January slightly higher at 87%. For a detailed outlook on the January weather, check out Bangor weather in January.

December and February exhibit similar weather patterns, although there are some notable differences. In December, temperatures range from a minimum of 2°C (36°F) to a maximum of 13°C (55°F), with an average of 7°C (45°F). This month also sees higher precipitation levels, with about 118 mm (4.7 in) of rain over 18 days, while humidity remains high at 86%.

In contrast, February experiences slightly cooler temperatures, with a minimum of 1°C (33°F) and a maximum of 12°C (54°F), averaging 6°C (43°F). Precipitation is a bit lower, totaling around 111 mm (4.4 in) over 16 days, yet humidity stays consistent at 86% as well. For more detailed insights, you can explore Bangor weather in February.

In December, the weather tends to be cooler, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (55°F), and high humidity levels at 86%. This month also sees significant precipitation, totaling 118 mm (4.7 in) over approximately 18 days. In contrast, March experiences a slightly colder minimum temperature of -2°C (29°F), but averages remain similar, with highs reaching up to 14°C (57°F). March also receives less rainfall, accumulating about 94 mm (3.7 in) over 17 days, while maintaining the same humidity level of 86%. For a more detailed look at the weather in March, you can check out Bangor weather in March.

In December, the weather features a cooler average temperature of 7°C (45°F), with a maximum of 13°C (55°F) and frequent rainfall, accumulating 118 mm (4.7 in) over 18 days, resulting in high humidity levels around 86%. In contrast, April sees a slight warming trend, with an average temperature rising to 8°C (47°F) and a maximum reaching 14°C (58°F). Precipitation is significantly lower during this month, totaling just 45 mm (1.8 in) over 10 days, while humidity remains relatively stable at 85%. For more details on the weather in April, visit Bangor weather in April.

In December, the weather tends to be cooler and wetter, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (55°F), along with an average of 7°C (45°F). This month experiences significant rainfall, accumulating about 118 mm (4.7 in) over 18 days, coupled with high humidity levels at 86%. In contrast, May offers a more temperate climate, with temperatures that range from a minimum of 4°C (40°F) to a maximum of 17°C (62°F), averaging 10°C (51°F). Precipitation is also lower in May, averaging 69 mm (2.7 in) across 12 days, and with slightly lower humidity at 82%. For a more detailed look at weather conditions in May, you can explore Bangor weather in May.

In December, the weather tends to be much cooler, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (55°F) and an average of 7°C (45°F). The month is also characterized by higher precipitation, totaling 118 mm (4.7 in) over about 18 rainy days, and humidity levels are relatively high at 86%. In contrast, June experiences milder temperatures, with a range of 8°C (47°F) to 19°C (66°F) and an average of 13°C (55°F). Precipitation is less frequent, amounting to 93 mm (3.7 in) over approximately 15 days, while humidity remains slightly lower at 84%. For more details on June weather, you can check out Bangor weather in June.

December and July showcase stark contrasts in weather patterns. In December, temperatures range from a chilly 2°C (36°F) to a mild 13°C (55°F), with an average of 7°C (45°F). This month experiences significant rainfall, accumulating 118 mm (4.7 in) over 18 days, all while maintaining a high humidity level of 86%. In contrast, July brings warmer temperatures, with a minimum of 9°C (49°F) and a maximum reaching 20°C (69°F), averaging 14°C (58°F). The precipitation is slightly lower at 108 mm (4.2 in) over 15 days, yet the humidity remains constant at 86%. For more detailed insights on July weather, visit Bangor weather in July.

In December, the weather is considerably cooler, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (55°F), average around 7°C (45°F). The month also sees significant precipitation, amounting to 118 mm (4.7 in) over 18 days, and the humidity remains high at 86%. In contrast, August brings milder temperatures, with averages from a minimum of 10°C (51°F) to a maximum of 19°C (66°F), averaging around 14°C (58°F). Precipitation is slightly higher at 129 mm (5.1 in) across 19 days, yet the humidity level remains the same at 86%. For more detailed insights on weather patterns, check out Bangor weather in August.

When comparing the weather in December and September, it is clear that December is notably colder, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (55°F). In contrast, September enjoys milder conditions, with average temperatures between 8°C (46°F) and 20°C (68°F). Rainfall also varies between the two months, with December receiving more precipitation at 118 mm (4.7 in) over 18 days, while September has a slightly lower total of 95 mm (3.8 in) over 17 days. Humidity levels are similar, with December at 86% and September at 88%. For a closer look at September's weather, you can visit Bangor weather in September.

In comparing the weather of December to October, we see notable differences in temperature and precipitation patterns. December experiences slightly cooler temperatures, with an average of 7°C (45°F) compared to October's warmer average of 11°C (53°F). The minimum temperatures in December dip to 2°C (36°F), while October starts at a higher minimum of 5°C (41°F). Both months are fairly wet, but December has a bit less precipitation overall, with 118 mm (4.7 in) over 18 days compared to October's 125 mm (4.9 in) over 19 days. Humidity remains high in both months, though December's 86% is slightly lower than October's 89%. For more detailed insights into October's weather, you can check Bangor weather in October.

In comparing December and November weather, December tends to be slightly cooler with minimum temperatures dropping to 2°C (36°F) compared to November's 3°C (38°F). The average temperature in December is 7°C (45°F), slightly lower than November's average of 9°C (48°F). While both months experience significant rainfall, December has a total precipitation of 118 mm (4.7 in) over 18 days, which is marginally less than November's 128 mm (5.1 in) over 21 days. Additionally, December's humidity averages around 86%, slightly less than November's 90%. For more details about November weather, you can check Bangor weather in November.

Compare Bangor's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Bangor

As December settles over Bangor, the weather transforms into a chillier, wetter experience compared to the milder months prior. The average temperature dips noticeably, offering a brisk environment that contrasts sharply with the warmth of autumn. With significant rainfall and high humidity levels, the month is marked by frequent wet days, often enveloping the town in a cozy, misty ambiance. This shift not only paints a picturesque winter backdrop but also invites residents and visitors alike to embrace the seasonal change. For more insights on how December fits into Bangor's overall climate, check out Bangor Climate.