December Weather in Sennen, United Kingdom

Last updated: March 17, 2025

December in Sennen, United Kingdom, presents a cool and damp climate, with maximum temperatures reaching up to 14°C (58°F) and an average of 10°C (51°F). The minimum temperatures can dip to 6°C (43°F), contributing to a chilly atmosphere. This month witnesses significant precipitation, totaling 150 mm (5.9 in) over the course of 22 rainy days, enhancing the lush landscape characteristic of the region. With an average humidity level of 81%, December in Sennen is truly a time for cozy comforts and enjoying the serene beauty of winter by the coast.

December Temperature in Sennen

In December, Sennen, United Kingdom experiences a gentle transition into winter. The temperatures begin to cool, with a minimum of 6°C (43°F) and a maximum of 14°C (58°F), while the average settles at around 10°C (51°F). This month marks the tail end of a gradual decline from the milder autumn temperatures, which had earlier peaks in the range of 15°C (60°F) in November and 19°C (66°F) in October. As winter approaches, the weather becomes more temperate yet still crisp, making it an ideal time for cozy indoor activities or brisk coastal walks. Overall, December’s temperatures reflect Sennen's characteristic maritime climate, offering a moderately chilly backdrop that beckons festive cheer and seasonal charm.

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

The chart illustrates December temperature patterns in Sennen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec494848505358626260575351
Data source: Temperature data for Sennen 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 Sennen

In December, Sennen experiences its wettest month of the year, with an impressive 150 mm (5.9 in) of precipitation spread over 22 days. This increase in rainfall marks a notable rise from the previous month's 125 mm (4.9 in), reflecting a trend of heightened moisture as winter fully settles in. The number of precipitation days escalates, contributing to the gray, drizzly backdrop that often characterizes the region during this time. As temperatures drop, the atmospheric conditions seem to favor extended spells of rain, making December a peak month for water accumulation in Sennen, contrasting sharply with the drier spring months like April and May.

December Precipitation Trends in Sennen

The chart displays monthly precipitation patterns in Sennen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec879990446469665873139125150
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sennen

In Sennen, United Kingdom, December marks a slight dip in humidity levels, with an average of 81%. This decline reflects the annual trend of decreasing moisture as the year winds down, following a peak of 85% in the summer months. The consistent humidity range throughout the year, hovering between 81% and 85%, illustrates a stable maritime climate, with only minor fluctuations. As winter sets in, the air feels crisp yet retains enough moisture, contributing to the region's characteristic charm. December’s humidity aligns with November’s 82%, emphasizing the gradual transition towards drier conditions as residents prepare for the colder months ahead.

December Average Humidity in Sennen

This chart illustrates the average monthly humidity levels in Sennen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%82%83%85%85%85%85%84%84%82%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sennen

In December, Sennen experiences a notably low UV Index of 1, indicating minimal risk of harm from unprotected sun exposure, with a burn time of about 45 minutes. This trend of reduced UV levels continues from November's index of 2 and can be traced back through the winter months of January and February. As the year draws to a close, the exposure categories remain consistently low, reflecting a significant decrease compared to the summer peaks, when indices soared to as high as 9 in June. Such seasonal fluctuations highlight the importance of adapting sun protection measures throughout the year. For more insights on UV levels, visit Sennen UV Index.

Maximum UV Index Levels in Sennen for December

The chart shows the monthly maximum UV Index (UVI) for Sennen 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.
JanFebMarAprMayJunJulAugSepOctNovDec224679886421
Data source: Sennen 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 Sennen

In Sennen, United Kingdom, December brings a noticeable dip in sunshine, with only 120 hours of bright skies compared to the sun-drenched peak of July, which basks in 426 hours. This trend underscores the seasonal transition, as the year starts with a meager 96 hours of sunlight in January, and gradually climbs to a vibrant 407 hours in May. As summer fades, the sun’s presence dwindles, leading to November’s 158 hours and December’s shorter days. The comforting rhythm of the seasons here paints a vivid picture of the interplay between light and darkness, showcasing the unique charm of winter in Sennen.

Monthly Sunshine Duration in Sennen: December Highlighted

The December sunshine duration represents the total number of hours Sennen 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h155h237h353h407h404h426h387h330h261h158h120h
Data source: Sennen December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sennen During December

As December arrives in Sennen, the likelihood of sunny weather dips to 21%, making it one of the cloudiest months of the year. This reflects a downward trend from the more favorable conditions seen in the spring, where April boasts a peak 51% chance of sunshine. While winter typically brings shorter days and less warmth, it's worth noting that December's sunshine probability is a stark contrast to the bright and lively months preceding it. As we transition into the depths of winter, residents and visitors alike may need to embrace the cozy indoor activities, as the sun becomes a less frequent visitor in this charming coastal town.

Percentage of Sunny Days in December in Sennen

The chart illustrates the percentage of sunny days in Sennen 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 Sennen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%23%35%51%40%32%42%36%33%31%23%21%
Data source: Sennen December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sennen in December

As December descends upon Sennen, the daylight duration mirrors the cozy retreat into winter, with only 8 hours of sunlight gracing the days. This drop in daylight follows a gradual decrease from the blissful highs of 16 hours in June, as summer fades into autumn. By October, daylight shrinks to 10 hours, but November ushers in a further reduction to 9 hours. Thus, December's limited sunlight reflects a seasonal cycle, where the long, bright days of summer shift into the shorter, darker months, inviting the community to embrace the charm and warmth of winter festivities.

Average Daylight Hours in Sennen for December

The chart illustrates the variation in daylight duration in Sennen throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 35m10h 4m11h 55m13h 48m15h 27m16h 17m15h 50m14h 22m12h 33m10h 40m9h8h 7m
Data source: Sennen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Sennen

As December arrives in Sennen, United Kingdom, the winter winds start to make their presence felt with an average speed of 10.1 m/s (23 mph), marking a notable increase compared to the preceding months. This month stands out as the windiest of the year, surpassing the average wind speeds in January and February, which typically usher in the more turbulent winter weather. After a gradual decline from the spring's more vigorous breezes, with speeds dipping to their lowest in June and July, December’s gusts signal a shift toward more atmospheric energy as the year draws to a close. This uptick not only enhances the coastal charm of Sennen but also invigorates the landscape, creating a dynamic environment perfect for beach walks bundled in warm layers.

Average December Wind Speed in Sennen

The chart displays monthly wind speed patterns in Sennen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.69.87.76.47.85.35.96.05.87.87.410.1 m/s
Data source: Sennen December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Sennen Compares to Other Months

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

In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), with an average temperature of 10°C (51°F). The month sees significant precipitation, totaling 150 mm (5.9 in) over 22 days, contributing to an overall humidity level of 81%. In contrast, January experiences slightly cooler temperatures, with a minimum of 4°C (40°F) and an average of 9°C (49°F), peaking at 15°C (58°F). Precipitation drops to 87 mm (3.4 in), spread over 15 days, while humidity remains consistent at 81%. For more detailed weather information, you can check Sennen weather in January.

In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), with an average of 10°C (51°F). The month is characterized by significant rainfall, averaging 150 mm (5.9 in) across 22 days, and maintaining high humidity at 81%. In contrast, February sees cooler conditions with temperatures dropping to a minimum of 1°C (34°F) and averaging 9°C (49°F), peaking at 13°C (55°F). Precipitation decreases to 99 mm (3.9 in) over 17 days, and humidity slightly rises to 83%. For more detailed information about February's weather, visit Sennen weather in February.

In December, the weather is generally milder with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 14°C (58°F). It experiences significant precipitation, totaling 150 mm (5.9 in) over 22 days, and humidity levels hover around 81%. In contrast, March offers slightly cooler conditions, with temperatures ranging from 0°C (32°F) at night to a daytime maximum of 13°C (55°F). Precipitation is lower at 90 mm (3.6 in) over 16 days, while humidity remains comparable at 82%. For a more detailed look at the weather during this time, you can check Sennen weather in March.

In comparing December and April weather, we notice some interesting similarities and differences. Both months have an average temperature of around 10°C (51°F), with slight variations in minimum and maximum temperatures—December has a minimum of 6°C (43°F) and a maximum of 14°C (58°F), while April sees a minimum of 5°C (41°F) and a maximum of 14°C (57°F). However, December is significantly wetter, with 150 mm (5.9 in) of precipitation over 22 days, contrasting sharply with April's drier conditions, which feature only 44 mm (1.7 in) of precipitation spread across 8 days. Humidity is also slightly higher in April at 83% compared to December's 81%. For a more detailed look at April conditions in Sennen, check out Sennen weather in April.

In December, the weather is cooler, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), and an average temperature of 10°C (51°F). This month is characterized by higher precipitation, boasting 150 mm (5.9 in) over 22 days, leading to a humidity level of 81%. In contrast, May brings slightly milder conditions, with temperatures ranging from 7°C (46°F) to 16°C (61°F) and an average of 12°C (54°F). The month sees significantly less rainfall, totaling 64 mm (2.5 in) across 10 days, and a slight increase in humidity to 85%. For more details on the weather in May, you can visit Sennen weather in May.

In December, the weather is notably chillier compared to June, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), resulting in a cooler overall atmosphere. December also experiences significantly higher precipitation, averaging 150 mm (5.9 in) over 22 days, coupled with a humidity level of 81%. In contrast, June brings warmer temperatures, with a minimum of 11°C (52°F) and a maximum of 19°C (67°F), alongside a much lighter rainfall of 69 mm (2.7 in) spread over just 12 days. Although June has slightly higher humidity at 85%, the overall milder weather makes it a more pleasant month to enjoy outdoor activities. For more details, visit Sennen weather in June.

In December, the weather is notably cooler, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), while July enjoys warmer temperatures, averaging between 13°C (56°F) and 21°C (71°F). December also experiences significantly higher precipitation at 150 mm (5.9 in) over 22 days, compared to July's 66 mm (2.6 in) across just 10 days. Humidity levels are slightly higher in July at 85%, but December’s humidity remains high at 81%. For a more detailed look at July’s weather, you can visit Sennen weather in July.

December and August exhibit contrasting weather patterns. In December, temperatures range from a chilly 6°C (43°F) to a milder 14°C (58°F), with an average of 10°C (51°F). This month also experiences significant rainfall, totaling 150 mm (5.9 in) over 22 days, and humidity averages at a high 81%. In contrast, August features warmer temperatures, with a minimum of 14°C (57°F), an average of 16°C (62°F), and a maximum of 20°C (68°F). Precipitation is lighter, at 58 mm (2.3 in) spread over just 10 days, and humidity is slightly higher at 85%. For more details on Sennen's weather during August, you can check Sennen weather in August.

In comparing the weather between December and September, it's notable that December tends to be cooler and wetter. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), with an average of 10°C (51°F). The month experiences significant rainfall, totaling 150 mm (5.9 in) over 22 days, contributing to a high humidity level of 81%.

Conversely, September offers a milder climate, with temperatures starting at a minimum of 11°C (53°F) and reaching up to 20°C (69°F), averaging 16°C (61°F). Precipitation is considerably less, with 73 mm (2.9 in) spread over 13 days, and humidity is slightly higher at 84%. For more details on September weather, you can visit Sennen weather in September.

When comparing December and October weather, December tends to be cooler, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 14°C (58°F), compared to October's slightly milder temperatures, which range from 7°C (44°F) to 19°C (66°F). Both months experience significant rainfall, but December sees more precipitation overall, with 150 mm (5.9 in) over 22 days, whereas October has 139 mm (5.5 in) spread over 16 days. Additionally, December's humidity is relatively lower at 81%, compared to October's higher humidity level of 84%. For more detailed information, you can check Sennen weather in October.

In comparing the weather between November and December, both months exhibit relatively mild temperatures, but December is slightly cooler overall. November sees minimum temperatures around 6°C (44°F), with an average of 12°C (53°F) and a maximum of 15°C (60°F). In contrast, December's temperatures range from a minimum of 6°C (43°F) to an average of 10°C (51°F) and a maximum of 14°C (58°F). Precipitation levels increase in December, reaching 150 mm (5.9 in) over 22 days, compared to November's 125 mm (4.9 in) over 20 days. Humidity remains relatively consistent across both months, with December at 81% and November at 82%. For a more detailed look at November weather patterns, you can visit Sennen weather in November.

Compare Sennen's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Sennen

As December settles in, Sennen experiences a notable shift in weather patterns, characterized by increased humidity and significant rainfall. With the temperature averaging around 10°C (51°F), the chill of winter becomes more pronounced compared to the milder months prior. The frequent precipitation, occurring on approximately 22 days, blankets the area in a soothing, albeit damp, atmosphere, making it a month of cozy indoor moments. For those curious about how these conditions shape the local climate, a deeper dive awaits at Sennen Climate. Embrace the beauty of December's unique charm while preparing for the winter nights ahead!