December Weather in Barmouth, United Kingdom

Last updated: March 17, 2025

December in Barmouth, United Kingdom brings a mix of chilly temperatures and frequent rainfall, creating a distinctly wintry atmosphere. With maximum temperatures averaging around 13°C (55°F) and dipping as low as -3°C (26°F), this coastal town experiences a brisk winter environment. The average temperature hovers at 6°C (44°F), while the high humidity, reaching 89%, contributes to a damp feel. Visitors can expect about 170 mm (6.7 in) of precipitation spread over 20 days, making waterproof gear a must for anyone exploring the scenic landscapes during this month. Whether braving the elements or enjoying cozy indoor pursuits, December in Barmouth offers a unique blend of beauty and challenge.

December Temperature in Barmouth

In Barmouth, United Kingdom, December tends to be a chilly month, marking the transition into the coldest part of the year. With a minimum temperature dipping to -3°C (26°F) and a maximum reaching around 13°C (55°F), the coastal town experiences a crisp winter atmosphere. The average temperature hovers at 6°C (44°F), reflecting a slight warming trend from the preceding months of November, which saw lower averages. This is typical for December, where the cold begins to set in but offers a slight respite compared to January and February, the coldest months. Despite the chill, Barmouth's coastal beauty in winter can be enchanting, inviting visitors to embrace the season's tranquility.

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

The chart illustrates December temperature patterns in Barmouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414244485258615956514643
Data source: Temperature data for Barmouth 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 Barmouth

December in Barmouth, United Kingdom, marks a peak in precipitation, with an impressive 170 mm (6.7 in) of rain falling over 20 days. This notable increase contrasts sharply with the milder months earlier in the year, such as April, which sees just 58 mm (2.3 in). The trend suggests that as the year closes, the dampness significantly escalates, creating a wet and somewhat dreary environment. With an average of 19 rain-soaked days in November and December, the coastal town certainly experiences its share of wintery weather, reinforcing the notion that this time of year calls for cozy indoors and an appreciation for the lashing waves outside.

December Precipitation Trends in Barmouth

The chart displays monthly precipitation patterns in Barmouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec10514513858859691144130161138170
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Barmouth

In December, Barmouth, United Kingdom, experiences a notable shift in humidity levels, dipping slightly to 89% after a gradual increase through the latter months of the year. The trend in December mirrors the overall cooler season, as humidity tends to peak in the fall, with November reaching 91%. As winter approaches, the air retains a chill complemented by this higher moisture content. Interestingly, this December level aligns closely with earlier winter months, hinting at a pattern of consistent humidity during the festive season, distinct from the drier summer months when readings fall to around 78%. This cyclical nature underscores Barmouth's maritime climate, characterized by a unique blend of dampness and coastal charm throughout the winter.

December Average Humidity in Barmouth

This chart illustrates the average monthly humidity levels in Barmouth, 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%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Barmouth

As the year draws to a close, December in Barmouth, United Kingdom, sees a return to a low UV Index of 1, consistent with the previous months of January and November. This trend underscores the cooler winter season, where the risk of sunburn remains minimal, allowing for generous 45-minute burn times without significant concern. Compared to the summer heights, where the UV Index surged to 8 in June and July, December's gentle rays remind us to remain vigilant, even in the chill, as the sun can still pose a risk—albeit a modest one. For those looking to plan outdoor activities, it’s easy to relish the crisp air without the urgency for sunscreen. To learn more about the fluctuations throughout the year, check out the detailed Barmouth UV Index.

Maximum UV Index Levels in Barmouth for December

The chart shows the monthly maximum UV Index (UVI) for Barmouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Barmouth 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 Barmouth

As December rolls into Barmouth, the sunshine hours begin to dwindle, reflecting the transition into winter with a modest 106 hours of daylight. This marks a gentle decline from the year's peak in July, when the sun graced the town with 420 hours. Each month leading up to December shows a gradual increase in sunshine, peaking in late spring and early summer. However, the trend sharply descends as autumn approaches, culminating in the bare minimum light of winter. Despite the dimming days, Barmouth's December offers a cozy charm, reminding visitors that even in the cooler months, there's beauty to be found in the soft winter sun.

Monthly Sunshine Duration in Barmouth: December Highlighted

The December sunshine duration represents the total number of hours Barmouth 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.
JanFebMarAprMayJunJulAugSepOctNovDec94h158h225h330h411h402h420h385h313h239h125h106h
Data source: Barmouth December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Barmouth During December

In December, Barmouth experiences a modest likelihood of sunny weather, with the chance of sun sitting at only 16%. This marks a slight decline compared to the preceding months, particularly from the more favorable conditions seen in spring and early summer. While autumn presented a slightly higher probability of sunshine, winter inevitably brings shorter days and cloudier skies. As the year winds down, residents and visitors alike can expect a retreat from the brighter days of earlier months, making sunny spells during December a rare but delightful surprise.

Percentage of Sunny Days in December in Barmouth

The chart illustrates the percentage of sunny days in Barmouth 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 Barmouth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%20%25%47%28%24%36%23%21%15%22%16%
Data source: Barmouth December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Barmouth in December

In Barmouth, United Kingdom, the transition from autumn to winter brings a notable decline in daylight duration, peaking in June and July with an impressive 16 hours of sunlight. As the year progresses, December sees the shortest day of the year, offering just 7 hours of daylight. This reduction marks a sharp contrast to the longer days of spring and summer, with January and November also experiencing limited sunlight at 8 hours. The trend illustrates a gradual decrease from the 15 hours in May, tapering off through the autumn months to the winter solstice. Despite the dwindling light, the enchanting winter landscape of Barmouth can still be enjoyed in the crisp, short days of December.

Average Daylight Hours in Barmouth for December

The chart illustrates the variation in daylight duration in Barmouth throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 13m9h 52m11h 54m13h 59m15h 48m16h 46m16h 15m14h 36m12h 36m10h 32m8h 41m7h 41m
Data source: Barmouth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Barmouth

As December rolls into Barmouth, the coastal winds pick up a brisk tempo, averaging 4.4 m/s (10 mph), making it one of the more blustery months of the year. This reflects a noticeable uptick from the calmer summer months, where average speeds dipped as low as 2.5 m/s (5 mph) in July. Interestingly, after a gradual increase from late autumn, the winds show a late-year resurgence, echoing the intrigue of the season's transition. With such conditions, December exits the year with a sturdy, refreshing breeze that invigorates both locals and visitors, setting the stage for the winter festivities ahead.

Average December Wind Speed in Barmouth

The chart displays monthly wind speed patterns in Barmouth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.05.14.43.03.63.02.53.42.94.63.94.4 m/s
Data source: Barmouth December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Barmouth Compares to Other Months

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

December and January share similar temperature ranges, with minimums lingering around -3°C (26°F) and maximums reaching up to 13°C (55-56°F). However, December tends to be slightly warmer on average, with an average temperature of 6°C (44°F) compared to January's 5°C (42°F). Additionally, December experiences more precipitation, totaling 170 mm (6.7 in) over 20 days, while January sees a decrease in rainfall to 105 mm (4.2 in) spread across 14 days. Both months maintain comparable humidity levels at 89%. For more detailed insights, check out Barmouth weather in January.

When comparing the weather in December and February, both months feature similar average temperatures, hovering around 6°C (44°F), but February experiences slightly colder minimum temperatures, dropping to -5°C (24°F) compared to December's -3°C (26°F). Interestingly, February also sees a higher maximum temperature, reaching up to 18°C (65°F), while December peaks at 13°C (55°F). In terms of precipitation, December is wetter, with 170 mm (6.7 in) falling over 20 days, whereas February has 145 mm (5.7 in) across 17 days. Humidity levels remain comparable, with December at 89% and February slightly lower at 88%. For a closer look at February's weather patterns, visit Barmouth weather in February.

In December, the temperatures range from a chilly -3°C (26°F) to a milder 13°C (55°F), with an average of 6°C (44°F). The month typically sees significant precipitation, averaging 170 mm (6.7 in) over 20 days, and a high humidity level at 89%. In contrast, March offers slightly cooler low temperatures at -6°C (21°F) but can reach a comfortable maximum of 18°C (65°F), providing an average temperature of 7°C (44°F). Precipitation is also less in March at 138 mm (5.5 in) over 18 days, with humidity slightly lower at 86%. For a detailed look at weather patterns, you can visit Barmouth weather in March.

In December, the weather tends to be much colder and wetter, with average temperatures ranging from -3°C (26°F) at night to a maximum of 13°C (55°F) during the day. This month also sees significant precipitation, averaging 170 mm (6.7 in) over approximately 20 days, and a high humidity level of 89%. In contrast, April offers a milder experience, with temperatures varying from -3°C (28°F) at night to a more pleasant maximum of 22°C (72°F) during the day. The month is considerably drier, with only 58 mm (2.3 in) of precipitation spread over 12 days, and a slightly lower humidity level of 84%. For a closer look at the specifics of April weather, you can visit Barmouth weather in April.

December weather in Barmouth is characterized by colder temperatures, with a minimum of -3°C (26°F) and an average of 6°C (44°F), reaching a maximum of 13°C (55°F). This month experiences significant precipitation, with about 170 mm (6.7 in) over 20 days, contributing to a high humidity level of 89%. In contrast, May brings milder conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 27°C (80°F) and an average of 11°C (53°F). Precipitation drops to 85 mm (3.3 in) across 13 days, and humidity decreases to 79%. For more detailed information on May weather, visit Barmouth weather in May.

December and June showcase contrasting weather patterns. In December, temperatures often plunge to a minimum of -3°C (26°F), with an average of 6°C (44°F) and a maximum reaching 13°C (55°F). This month is characterized by significant precipitation, totaling 170 mm (6.7 in) over about 20 days, and high humidity levels at 89%. Conversely, June offers a milder climate, with temperatures ranging from a minimum of 5°C (42°F) to an average of 14°C (58°F) and peaking at 28°C (83°F). Precipitation in June is also lighter, at 96 mm (3.8 in) over approximately 16 days, accompanied by a lower humidity level of 81%. For more information about the weather during this month, visit Barmouth weather in June.

December and July present starkly contrasting weather conditions. In December, temperatures can plummet as low as -3°C (26°F), with an average of 6°C (44°F) and a maximum reaching 13°C (55°F). The month is characterized by significant precipitation, totaling 170 mm (6.7 in) over approximately 20 days, coupled with high humidity at 89%. In contrast, July offers a much milder climate, with temperatures ranging from a minimum of 6°C (44°F) to an average of 16°C (61°F) and a maximum of 29°C (84°F). Rainfall is also reduced in July, with only 91 mm (3.6 in) over 14 days, and humidity drops to 78%. For a closer look at July weather specifics, you can explore Barmouth weather in July.

December and August present stark contrasts in weather conditions. In December, temperatures dip significantly, with a minimum of -3°C (26°F) and an average of 6°C (44°F), while the maximum reaches only 13°C (55°F). This month also sees higher precipitation, totaling 170 mm (6.7 in) over 20 days, combined with a high humidity level of 89%. In contrast, August boasts milder temperatures, with a minimum of 7°C (45°F) and an average of 15°C (60°F), peaking at 27°C (80°F). Precipitation in August is slightly lower at 144 mm (5.7 in) but occurs over the same number of days, with a more comfortable humidity of 79%. For more insights, visit Barmouth weather in August.

December weather can be quite frigid, with temperatures ranging from a chilling minimum of -3°C (26°F) to a maximum of 13°C (55°F), and average temperatures around 6°C (44°F). In contrast, September offers a much milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a comfortable maximum of 27°C (82°F) and an average of 13°C (56°F). While December sees significant precipitation, totaling 170 mm (6.7 in) over approximately 20 days with high humidity at 89%, September experiences slightly less rainfall at 130 mm (5.1 in) over 16 days, along with a lower humidity level of 85%. For more details, you can check Barmouth weather in September.

In comparing the weather between December and October, we can see a notable shift in temperatures and conditions. December experiences cooler temperatures, with a minimum of -3°C (26°F) and an average of 6°C (44°F), while October enjoys milder conditions, featuring a minimum of -2°C (28°F) and an average of 11°C (52°F). Rainfall is fairly similar, with December receiving 170 mm (6.7 in) over 20 days, compared to October's 161 mm (6.3 in) across 19 days. Humidity remains high in both months, with December at 89% and October slightly higher at 90%. For more detailed insights into October's climate, you can visit Barmouth weather in October.

December weather tends to be colder and wetter compared to November, with average temperatures dropping from November's 8°C (47°F) to 6°C (44°F). The minimum temperatures in December can reach as low as -3°C (26°F), while November's lows are slightly milder at -1°C (30°F). Additionally, December sees higher precipitation, with 170 mm (6.7 in) of rainfall over 20 days, compared to November's 138 mm (5.4 in) over 19 days. Humidity levels remain high in both months, with December at 89% and November at 91%. For a more detailed comparison, you can check out Barmouth weather in November.

Compare Barmouth's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Barmouth

As December sweeps through Barmouth, the weather takes a notable turn compared to other months, marked by a significant chill and increased precipitation. Temperatures dip, typically ranging from a brisk average to even colder nights, while the humidity remains high, enhancing the crisp winter atmosphere. Rainfall is frequent, with about 20 days of precipitation, making this month one of the wetter periods of the year. This combination creates a scenery that is both mystical and invigorating, perfect for those who enjoy the seasonal shifts. For more insights into the unique climate of Barmouth, visit Barmouth Climate.