December Weather in Coleraine, United Kingdom

Last updated: March 17, 2025

December in Coleraine, United Kingdom offers a brisk average temperature of 8°C (46°F), with highs reaching 12°C (54°F) and lows dipping to around 2°C (35°F). This month is characterized by frequent precipitation, accumulating to 166 mm (6.5 in) over 23 days, contributing to a notably high humidity level of 86%. Visitors can expect a chilly, damp climate, making it an ideal time for cozy indoor activities and enjoying the festive season.

December Temperature in Coleraine

In Coleraine, United Kingdom, December brings a chilly embrace as winter settles in. With a minimum temperature of 2°C (35°F) and an average of 8°C (46°F), residents can expect brisk days and cool nights. The month peaks at a maximum of 12°C (54°F), offering a slight reprieve from the colder temperatures. This trend reflects a gradual decline in warmth as the year concludes, with December typically cooler than its autumn predecessors. Compared to earlier months like November, with its higher average of 9°C (49°F), December ushers in the frostier air of winter, prompting cozy gatherings and festive celebrations amidst the breathtaking northern scenery.

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

The chart illustrates December temperature patterns in Coleraine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454444465054575856534946
Data source: Temperature data for Coleraine 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 Coleraine

December in Coleraine, United Kingdom, marks the peak of the rainy season, with precipitation soaring to an impressive 166 mm (6.5 in) over 23 days. This trend highlights a noticeable increase in rainfall as the year concludes, compared to the milder months of autumn, which averaged around 156 mm in November. The pattern of increasing rainfall throughout the fall culminates in December, often characterized by frequent wet days that can dampen outdoor plans. With December's average precipitation exceeding that of every other month, it’s clear that the winter season brings a significant shift in Coleraine’s weather dynamics, emphasizing the region's reputation for being lush and green but also rather soggy during this time of year.

December Precipitation Trends in Coleraine

The chart displays monthly precipitation patterns in Coleraine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1091321125573105110146117161156166
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Coleraine

In December, Coleraine, United Kingdom, experiences a humidity level of 86%, continuing the trend of elevated moisture in the air as the year draws to a close. This month sits closely with the average humidity levels seen in late spring and summer, where figures hovered around 86% to 88%. Interestingly, it marks a slight decrease from the preceding months of October and November, both of which recorded higher humidity levels of 89% and 90%, respectively. As the winter season settles in, December’s humidity reflects a transition rather than a stark shift, contributing to the city's characteristic cool and damp climate.

December Average Humidity in Coleraine

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

In December, Coleraine experiences a low UV Index of 1, indicating minimal risk from sun exposure. This marks a notable decline from the peak summer months, where the UV Index soared to 8 in both June and July. The trend throughout the year reveals a gradual increase in UV levels from January to June, reaching a high exposure category before tapering back down to lower levels in the fall and winter months. With a burn time of 45 minutes, residents and visitors can enjoy the outdoors more safely, as long as they remain mindful of the sun's potential effects. For more detailed information, visit Coleraine UV Index.

Maximum UV Index Levels in Coleraine for December

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

In Coleraine, December brings a gentle hush as daylight hours dwindle to 81 hours of sunshine. This figure reflects a notable decline from the vibrant 405 hours in May and 404 hours in July, contrasting sharply with the sunny months of spring and summer. After the exuberance of festivals and outdoor gatherings, the winter months see a return to cozy evenings and twinkling lights. The gradual decrease in sunlight, from November's 117 hours to December, embodies the transition to a quieter season, inviting residents to enjoy the warmth of home during the colder days. As we look forward to the new year, the anticipation of brighter days ahead always lingers in the crisp December air.

Monthly Sunshine Duration in Coleraine: December Highlighted

The December sunshine duration represents the total number of hours Coleraine 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.
JanFebMarAprMayJunJulAugSepOctNovDec72h146h207h319h405h389h404h357h283h224h117h81h
Data source: Coleraine December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Coleraine During December

In Coleraine, December typically sees a low chance of sunshine, with only a 14% likelihood of clear skies. This trend reflects the consistently diminishing chances of sunny days as the year progresses, especially evident as we transition from the relative brightness of spring and early summer. Following the peak month of April at 43%, the chance of sun drops sharply, highlighting the winter's overcast nature. While December is often characterized by its cold and drizzly weather, those hoping for a glimmer of sunlight may find this month particularly challenging, as it ranks among the least sunny periods of the year.

Percentage of Sunny Days in December in Coleraine

The chart illustrates the percentage of sunny days in Coleraine 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 Coleraine experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%25%15%43%36%22%24%20%23%16%16%14%
Data source: Coleraine December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Coleraine in December

As December unfolds in Coleraine, United Kingdom, daylight reaches its annual low, offering just 7 hours of sunlight each day. This decrease reflects a broader trend of diminishing daylight as winter approaches, following a gradual increase from a mere 9 hours in February to a peak of 17 hours in June. The shift in daylight hours is notable; as the year progresses, sunlight swells during the spring and summer months, fostering longer and brighter days that culminate in the height of summer. However, the steady decline throughout autumn leads to the shorter, darker days of winter, illustrating the rhythmic ebb and flow of daylight throughout the seasons.

Average Daylight Hours in Coleraine for December

The chart illustrates the variation in daylight duration in Coleraine throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 49m9h 40m11h 53m14h 10m16h 11m17h 17m16h 41m14h 51m12h 39m10h 24m8h 21m7h 13m
Data source: Coleraine daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Coleraine

In December, the wind in Coleraine picks up with an average speed of 8.3 m/s (19 mph), marking a noticeable transition as the year draws to a close. This month’s wind speed reflects a gradual increase from the calmer summer months, where the lowest average wind speeds were recorded in July at 3.8 m/s (8 mph). A consistent pattern throughout the autumn months shows a steady climb, culminating in December's gusts, which are still below the year's peak in February at 10.5 m/s (23 mph). With each passing month, the shift from soft summer breezes to the brisk winds of winter becomes apparent, inviting a refreshing chilling reminder of the season ahead.

Average December Wind Speed in Coleraine

The chart displays monthly wind speed patterns in Coleraine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.810.57.55.96.25.73.84.55.57.79.38.3 m/s
Data source: Coleraine December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Coleraine Compares to Other Months

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

In comparing the weather between December and January, we observe that December generally offers slightly warmer daytime temperatures with an average of 8°C (46°F) compared to January's average of 7°C (45°F). Both months experience similar minimum temperatures around 2°C (36°F) and slightly higher maximum temperatures in January at 13°C (56°F), compared to 12°C (54°F) in December. However, December is significantly wetter, receiving 166 mm (6.5 in) of precipitation over 23 days, whereas January sees a reduction to 109 mm (4.3 in) across 17 days. Humidity levels remain quite similar, with December at 86% and January slightly higher at 87%. For a deeper look into the specifics of January weather, you can check Coleraine weather in January.

In December, the weather in Coleraine experiences slightly higher temperatures compared to February, with a minimum of 2°C (35°F) and an average of 8°C (46°F), reaching a maximum of 12°C (54°F). It also sees more precipitation, totaling 166 mm (6.5 in) over 23 days, maintaining a high humidity of 86%. In contrast, February’s temperatures are a bit cooler, with a minimum of 1°C (34°F) and an average of 7°C (44°F), while still reaching a maximum of 12°C (54°F). Precipitation decreases to 132 mm (5.2 in) over 18 days, but humidity remains constant at 86%. For a more detailed look at February's weather, you can check the following link: Coleraine weather in February.

In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 12°C (54°F), with an average of 8°C (46°F). The month sees significant precipitation of 166 mm (6.5 in) spread over 23 days, all while maintaining a high humidity level of 86%. In contrast, March typically experiences slightly cooler conditions, with minimum temperatures dropping to -1°C (31°F) and average temperatures around 7°C (45°F). Although maximum temperatures remain consistent, similar to December at 12°C (54°F), March features less precipitation at 112 mm (4.4 in) across 18 days, yet humidity remains high at 86%. For more detailed insights on the weather in March, check out Coleraine weather in March.

In December, temperatures typically range from a chilly 2°C (35°F) to a maximum of 12°C (54°F), with an average of around 8°C (46°F). During this month, Coleraine experiences considerable precipitation, totaling 166 mm (6.5 in) over approximately 23 days, contributing to a high humidity of 86%.

In contrast, April sees slightly milder conditions, with temperatures from a minimum of 2°C (36°F) up to a maximum of 13°C (56°F), maintaining a similar average of 8°C (47°F). Rainfall is significantly reduced in April, with only 55 mm (2.2 in) over about 12 days, and humidity levels are slightly lower at 85%.

To learn more about the weather specifics, check out Coleraine weather in April.

In comparing the weather between December and May, there are some notable differences. December is significantly cooler, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 12°C (54°F). In contrast, May enjoys milder temperatures, with a minimum of 5°C (41°F) and a maximum of 16°C (61°F). While December experiences more precipitation, totaling 166 mm (6.5 in) over 23 days, May's rainfall is much lighter at 72 mm (2.9 in) over just 13 days. Additionally, December has a higher humidity level at 86%, compared to May’s 82%. For more detailed insights into May's weather patterns, you can visit Coleraine weather in May.

When comparing the weather in December and June, notable differences emerge. December's temperatures range from a chilly 2°C (35°F) at night to a mild 12°C (54°F) during the day, with an average of 8°C (46°F). In contrast, June enjoys warmer temperatures, with minimums of 8°C (47°F) and maximums reaching 17°C (62°F), averaging around 12°C (54°F). Precipitation is more prevalent in December, with 166 mm (6.5 in) falling over 23 days compared to June's 105 mm (4.1 in) over just 17 days. Humidity levels are slightly higher in December at 86%, compared to June’s 84%. For more detailed information, check out Coleraine weather in June.

The weather in December is markedly cooler compared to July, with temperatures ranging from a chilly minimum of 2°C (35°F) to a maximum of 12°C (54°F), averaging around 8°C (46°F). In contrast, July brings milder conditions, with temperatures starting at 11°C (52°F) and reaching highs of 19°C (67°F), averaging about 14°C (57°F). While December experiences a considerable amount of precipitation at 166 mm (6.5 in) over 23 days, July sees less rainfall at 110 mm (4.3 in) over 17 days. Both months exhibit high humidity levels of 86%, but the overall feel is much different due to the temperature variations. For a detailed look, you can check Coleraine weather in July.

December and August present quite contrasting weather patterns. In December, temperatures are noticeably cooler, with a minimum of 2°C (35°F) and an average of 8°C (46°F), compared to the milder August climate, where the minimum hovers at 11°C (52°F) and averages around 14°C (58°F). Rainfall is more frequent in December, with 166 mm (6.5 in) over 23 days, while August experiences slightly less precipitation at 146 mm (5.7 in) across 20 days. Both months have high humidity levels of 86%, but the overall chill of December adds an extra layer of discomfort. For a more in-depth look at August weather, you can refer to Coleraine weather in August.

In comparing the weather between December and September, it's evident that December is considerably cooler, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 12°C (54°F), whereas September enjoys milder temperatures, with a range from 9°C (49°F) to 17°C (64°F). December also brings significantly higher precipitation, totaling 166 mm (6.5 in) over 23 days, compared to September’s 117 mm (4.6 in) over 20 days. Additionally, while December has a humidity level of 86%, September is slightly higher at 88%. For more specifics on September weather, you can check Coleraine weather in September.

In comparing the weather of December and October, December tends to be cooler with average temperatures ranging from 2°C to 12°C (35°F to 54°F), while October's temperatures are milder, averaging between 5°C and 16°C (42°F to 62°F). Both months experience significant precipitation, with December seeing 166 mm (6.5 in) over 23 days and October slightly less at 161 mm (6.3 in) across 24 days. Humidity levels remain high in both months, but December is slightly less humid at 86% compared to October's 89%. For more detailed insights, you can check Coleraine weather in October.

In comparing the weather of December and November, we notice a slight drop in temperatures as December experiences a minimum of 2°C (35°F), compared to November's minimum of 4°C (40°F). The average temperatures are fairly consistent, with December averaging 8°C (46°F) and November at 9°C (49°F). Precipitation levels are comparable as well, with December recording 166 mm (6.5 in) over 23 days, slightly more than November's 156 mm (6.2 in) during the same number of days. Humidity remains high in both months, at 86% in December and 90% in November, suggesting a consistently damp atmosphere. For a more in-depth look at November's weather, you can explore Coleraine weather in November.

Compare Coleraine's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Coleraine

As December settles in Coleraine, the weather takes on a distinctly cooler and wetter character compared to other months. With temperatures averaging around 8°C and frequent rainy days—totaling 23—this month ushers in a damp chill, often accompanied by a high humidity level of 86%. The sharp contrast between the milder conditions of autumn and December’s brisk air can be felt throughout the town, making it a time for warm attire and cozy gatherings. For those interested in a deeper dive into the region's climatic patterns, check out Coleraine Climate.