December Weather in Tregastel, France

Last updated: February 26, 2025

In December, Tregastel, France, experiences a chill with temperatures ranging from a maximum of 14°C (57°F) to a minimum of 3°C (38°F), averaging around 10°C (50°F). The air is heavy with humidity at 90%, creating a brisk coastal atmosphere. Visitors can expect significant rainfall, with 167 mm (6.6 in) accumulated over 21 days, making waterproof gear essential for exploring this picturesque region. December's weather offers a unique charm, transforming Tregastel into a serene winter retreat amidst the rugged beauty of Brittany.

December Temperature in Tregastel

In December, Tregastel, France, ushers in the winter season with temperatures that begin to dip but remain surprisingly mild compared to the harsher months ahead. The average temperature hovers around 10°C (50°F), providing a gentle chill that encourages cozy gatherings and festive atmospheres. Nighttime lows of 3°C (38°F) remind residents and visitors alike that winter is here, though the daytime high can still reach a comfortable 14°C (57°F), making outdoor strolls by the coastline enjoyable. As the year closes, Tregastel’s temperatures reflect a gradual transition, hinting at the cooler, brisk days of January while still holding onto a touch of autumn’s warmth.

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

The chart illustrates December temperature patterns in Tregastel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec474748505459626261575249
Data source: Temperature data for Tregastel 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 Tregastel

In Tregastel, France, December stands out as one of the wettest months of the year, recording an impressive 167 mm (6.6 in) of precipitation. This surge in rainfall is accompanied by a notable increase in rainy days, with 21 days of precipitation, highlighting the shift into winter as the season's chill brings frequent showers. Comparatively, this is significantly higher than the preceding months, notably surpassing the 109 mm (4.3 in) of November. The transition is clear as Tregastel experiences a dramatic rise in both the amount and frequency of rain, making December a month characterized by its dampness, setting the tone for the winter ahead.

December Precipitation Trends in Tregastel

The chart displays monthly precipitation patterns in Tregastel, 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.
JanFebMarAprMayJunJulAugSepOctNovDec979678506875444757142109167
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tregastel

In December, Tregastel experiences humidity levels that reach 90%, mirroring the high moisture often felt in November. This marks a notable trend where the end of the year is characterized by elevated humidity, with December's figures reflecting a steady increase from October's 89%. As the cooler months approach, humidity remains consistently high, peaking in December, just as it does at the start of winter. The overall pattern reveals that Tregastel's climate is marked by significantly higher humidity during the latter half of the year, contrasting sharply with the drier conditions seen in the summer months of July and August, which dip to 63% and 71% respectively. Thus, December solidifies its place in Tregastel's weather narrative as a month of rich humidity, setting the stage for the chill of winter.

December Average Humidity in Tregastel

This chart illustrates the average monthly humidity levels in Tregastel, 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%85%84%81%77%63%71%76%89%90%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tregastel

In Tregastel, France, the UV Index sees a notable decline as winter settles in, with December recording a low UV Index of 1. This indicates minimal risk from sun exposure, allowing locals and visitors to enjoy outdoor activities without the worry of sunburn, as the burn time stretches to a comfortable 45 minutes. This pattern reflects a broader seasonal trend where UV levels peak during the summer months—particularly in June and July, when they reach a striking 9—before tapering off towards the cooler months. Consequently, December offers a much-needed respite from the intense sun, making it a great time for leisurely strolls along the beautiful coast. For more insights, check out the detailed Tregastel UV Index.

Maximum UV Index Levels in Tregastel for December

The chart shows the monthly maximum UV Index (UVI) for Tregastel 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Tregastel 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 Tregastel

In Tregastel, France, December offers a modest 183 hours of sunshine, marking a gentle decline as the year draws to a close. This month, while significantly lower than the sun-soaked heights of July with its 431 hours, still provides a comforting glow amidst the winter chill. The sunshine hours gradually increase from the stark cold of January, where only 138 hours are recorded, peaking through the vibrant spring and summer months before tapering off again in the late autumn. This yearly cycle highlights Tregastel's transition from the crisp, bright days of early spring to the softer, fleeting rays of winter, inviting both locals and visitors to bask in its serene beauty even during the colder months.

Monthly Sunshine Duration in Tregastel: December Highlighted

The December sunshine duration represents the total number of hours Tregastel 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.
JanFebMarAprMayJunJulAugSepOctNovDec138h207h293h358h414h409h431h393h336h273h222h183h
Data source: Tregastel December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tregastel During December

In Tregastel, France, the likelihood of experiencing sunny weather in December stands at 25%, marking a noticeable dip as the year comes to a close. This figure reflects a trend of declining sunshine chances through the autumn months, with November also showing a relatively low 28% chance. As the seasons change, the region transitions from the brighter, more optimistic days of spring—where the chances peak at 54% in April—toward the depths of winter, which consistently sees lower percentages. Comparatively, the sunny days in December are fewer than those in earlier months like March (36%) and July (44%), suggesting that while the holiday season can bring joyful moments, residents and visitors should remain prepared for overcast skies amid the cooler weather.

Percentage of Sunny Days in December in Tregastel

The chart illustrates the percentage of sunny days in Tregastel 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 Tregastel experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%28%36%54%39%31%44%39%38%39%28%25%
Data source: Tregastel December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tregastel in December

In Tregastel, France, December marks the return to shorter days, with daylight lasting only 8 hours. This decline in daylight follows a gradual decrease that begins in August, when the region enjoys an average of 14 hours of sunlight. As the year progresses, the daylight diminishes steadily from 15 hours in July to 10 hours in October, leading to the early winter's brief days. Despite the reduction, December shares its light duration with January, both months experiencing the least sunlight of the year. The rhythm of the seasons is unmistakable, with daylight gradually increasing again from February, setting the stage for the brighter months that lie ahead.

Average Daylight Hours in Tregastel for December

The chart illustrates the variation in daylight duration in Tregastel throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 46m10h 10m11h 55m13h 43m15h 16m16h 4m15h 38m14h 15m12h 32m10h 45m9h 9m8h 19m
Data source: Tregastel daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Tregastel

As December settles over Tregastel, France, the winds begin to gather strength, reaching an average speed of 7.8 m/s (17 mph), the highest for the year. This crisp, invigorating breeze seems to signal the onset of winter, contrasting sharply with the gentle winds of June, which dropped to 3.7 m/s (8 mph). The transition from the milder months to the brisk end-of-year gales illustrates a clear trend in the climate, where the wind picks up speed from late autumn through winter. November and October maintained a steady 5.9 m/s (13 mph), but the December winds infuse the air with a refreshing energy, inviting both locals and visitors alike to embrace the season's beauty and brisk charm in this picturesque coastal town.

Average December Wind Speed in Tregastel

The chart displays monthly wind speed patterns in Tregastel, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.67.36.25.86.73.75.15.34.75.95.97.8 m/s
Data source: Tregastel December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Tregastel Compares to Other Months

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

In December, temperatures in Tregastel range from a minimum of 3°C (38°F) to a maximum of 14°C (57°F), with an average temperature of 10°C (50°F). The month is characterized by significant precipitation, totaling 167 mm (6.6 in) over 21 rainy days, and a high humidity of 90%. In contrast, January sees a slight dip in temperatures, with minimums dropping to 0°C (33°F) and an average of 8°C (47°F), while still reaching highs of 14°C (58°F). Precipitation in January is notably reduced to 97 mm (3.8 in) across 15 days, with humidity remaining comparable at 89%. Overall, January offers somewhat cooler and drier conditions compared to the wetter and milder December. For more specific details, you can check Tregastel weather in January.

December weather is characterized by milder temperatures, with a minimum of 3°C (38°F) and an average of 10°C (50°F), while February experiences cooler conditions with a minimum of -1°C (31°F) and an average of 8°C (48°F). In December, the region sees higher precipitation levels at 167 mm (6.6 in) over 21 days, compared to February's 96 mm (3.8 in) across 16 days. Humidity levels are also slightly higher in December at 90%, while February maintains a humidity of 88%. For a detailed look at February’s climate, you can visit Tregastel weather in February.

In comparing the weather between December and March, December presents a cooler and wetter climate, with average temperatures ranging from 3°C to 14°C (38°F to 57°F) and high precipitation levels of 167 mm (6.6 in) spread over 21 days. The humidity during this month is quite high at 90%, contributing to a persistently damp feel. In contrast, March enjoys slightly milder temperatures ranging from -2°C to 20°C (29°F to 68°F), but with significantly less rainfall at 78 mm (3.1 in) over 16 days and lower humidity at 85%. This shift marks a transition toward spring, making March a more favorable month for outdoor activities. For more detailed information on the specific weather patterns in March, you can refer to Tregastel weather in March.

In December, temperatures range from a chilly 3°C (38°F) to a mild 14°C (57°F), with an average of 10°C (50°F). The month sees significant rainfall, with 167 mm (6.6 in) spread over 21 days, contributing to a high humidity level of 90%. In contrast, April experiences slightly warmer temperatures, with a minimum of 4°C (40°F) and a maximum of 23°C (74°F), averaging around 10°C (51°F). Precipitation decreases considerably to 50 mm (2.0 in) over just 9 days, and humidity drops to 84%. For more specific insights into April's weather conditions, you can refer to Tregastel weather in April.

In December, the weather is generally cooler and wetter, with temperatures ranging from a chilly 3°C to a mild 14°C, and an average of 10°C. The month experiences significant rainfall, accumulating about 167 mm over 21 days, coupled with high humidity at around 90%, making it feel quite damp. In contrast, May brings a noticeable warmth, featuring temperatures that start at a minimum of 7°C and can reach up to 23°C, with an average of 12°C. Precipitation decreases significantly to 68 mm over 12 days, and humidity drops to 81%, contributing to a much more pleasant atmosphere. For more detailed information on the weather during this lovely spring month, you can check Tregastel weather in May.

December and June offer contrasting weather experiences. In December, temperatures range from a chilly 3°C (38°F) at night to a mild 14°C (57°F) during the day, accompanied by high humidity at 90% and significant precipitation of 167 mm (6.6 in) over about 21 days. In contrast, June brings more moderate temperatures, with nightly lows of 10°C (51°F) and daytime highs reaching up to 25°C (78°F). This month sees less rain, with a total of 75 mm (2.9 in) across about 12 days and lower humidity at 77%, making it a much drier and more pleasant time. For more details on the weather specific to June, check out Tregastel weather in June.

In December, the weather is notably cooler with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 14°C (57°F). The month is characterized by high humidity at 90% and significant precipitation, totaling 167 mm (6.6 in) spread over 21 days. In contrast, July offers a much warmer climate, with average temperatures between 13°C (55°F) and 25°C (77°F). This summer month sees much lower precipitation at 44 mm (1.7 in) occurring over just 10 days, along with a reduced humidity level of 63%. For more details, you can check Tregastel weather in July.

The weather in December differs significantly from that of August. In December, temperatures are noticeably cooler, with a minimum of 3°C (38°F) and an average of 10°C (50°F), while August enjoys much milder conditions, with temperatures starting at a minimum of 13°C (55°F) and peaking at 29°C (84°F). Additionally, December is marked by higher precipitation levels, totaling 167 mm (6.6 in) over 21 days, compared to August's much lighter rainfall of 47 mm (1.9 in) across just 10 days. Humidity is also higher in December, averaging 90%, compared to a more comfortable 71% in August. For more information, you can check out Tregastel weather in August.

December weather in Tregastel is notably cooler and wetter compared to September. While December sees average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 14°C (57°F), September boasts milder averages with temperatures ranging from 11°C (52°F) to 26°C (79°F). Precipitation is also significantly higher in December, with 167 mm (6.6 in) spread over 21 days, compared to just 57 mm (2.3 in) over 10 days in September. Additionally, the humidity in December averages a damp 90%, while September experiences a more comfortable 76%. For detailed insights, check out Tregastel weather in September.

When comparing the weather in December and October, it's clear that December tends to be cooler and wetter. In December, the minimum temperatures drop to around 3°C (38°F), with average highs of 10°C (50°F) and a significant amount of precipitation at 167 mm (6.6 in) over 21 days. This contributes to a high humidity level of 90%. In contrast, October offers milder conditions, with minimum temperatures around 7°C (45°F) and maximums reaching up to 22°C (71°F), coupled with 142 mm (5.6 in) of precipitation over 17 days and lower humidity levels at 89%. For a more detailed look at October's weather, you can visit Tregastel weather in October.

When comparing the weather in December to that of November, we see a slight drop in temperatures, with December's average temperature at 10°C (50°F), compared to November's 11°C (52°F). December also experiences a wider range of temperatures, with minimums at 3°C (38°F) versus November's 5°C (41°F) and maximums reaching 14°C (57°F) compared to November's 17°C (62°F). Precipitation increases notably in December, totaling 167 mm (6.6 in) over 21 days, while November sees only 109 mm (4.3 in) across 17 days. Both months share high humidity levels at 90%, but the added rain in December contributes to a more damp and chilly atmosphere. For a detailed look at the weather specifics for November, you can check Tregastel weather in November.

Compare Tregastel's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Tregastel

In December, Tregastel experiences a significant shift in weather, characterized by cooler temperatures and increased precipitation compared to other months. The month typically sees higher humidity levels, often reaching around 90%, creating a more challenging environment for outdoor activities. With nearly three weeks of rainfall and average temperatures hovering around 10°C, the coastal charm of this Breton town takes on a more subdued yet enchanting atmosphere. For a deeper insight into Tregastel's climate throughout the year, explore Tregastel Climate.