Last updated: February 26, 2025
In Rennes, France, December brings a dynamic blend of chilly temperatures and considerable precipitation, making it a month of contrasts. With maximum temperatures reaching up to 16°C (60°F) and averaging around 7°C (46°F), the days can feel relatively mild, yet nights can plunge to a crisp -3°C (26°F). During this period, residents and visitors alike should prepare for frequent rain, as the city experiences an average of 15 rainy days, contributing to a total of 97 mm (3.8 in) of precipitation. Coupled with a high humidity level of 90%, this creates a damp atmosphere, infusing Rennes with a quintessentially wintry charm.
In Rennes, France, December marks the transition into winter, with temperatures generally cool and crisp. The minimum temperature hovers around -3°C (26°F), while the average settles at a chilly 7°C (46°F), peaking at a maximum of 16°C (60°F). Compared to the preceding months, December exhibits a noticeable drop, reflecting the city's shift from autumn's mildness to winter's embrace. As daylight diminishes, the brisk air invigorates the atmosphere, making it a season to enjoy cozy gatherings and festive celebrations. While temperatures may not reach the extremes seen in mid-winter, the cool climate invites residents and visitors alike to wrap up warmly and partake in the charming holiday spirit that Rennes has to offer.
In December, Rennes experiences a notable increase in precipitation, with 97 mm (3.8 in) of rain falling over an average of 15 days. This marks one of the wettest months of the year, following the trend of escalating rainfall seen as autumn transitions into winter. Notably, December's precipitation is significantly higher than the months preceding it, reflecting a peak influenced by the colder weather. The consistent rain can transform the city into a cozy yet wet landscape, perfect for enjoying warm beverages in quaint cafes while watching the droplets dance on the pavement. As the year draws to a close, the persistent drizzle contributes to the overall festive atmosphere, reminding residents and visitors alike of the charm of Rennes in winter.
December in Rennes, France, marks the culmination of a year characterized by shifting humidity levels. As the cold sets in, the humidity peaks at a notable 90%, reflecting a pattern of increasing dampness as the year draws to a close. This rise in moisture is a stark contrast to the summer months, where July and August experienced much lower humidity levels at 65% and 67% respectively. Over the year, humidity levels have shown a gradual trend from the crisp air of late spring, dipping to a low of 75% in June, before climbing steadily in the latter half of the year. The consistent increase in December aligns with the patterns observed in January and November, where humidity hovers around 88%, enveloping Rennes in a chilly embrace that signals the onset of winter.
In Rennes, France, the UV Index experiences a noticeable decline as winter sets in, with December marking a return to a low index of 2 and a corresponding burn time of 45 minutes. This reflects a trend where the UV levels peak in the summer months, reaching a high of 9 in both June and July, before steadily diminishing back to their winter lows. With February and March offering moderate exposure levels, the shift to a low index in the colder months highlights the importance of being mindful of sun safety even during winter, as prolonged exposure can still lead to skin damage. For more insights into UV levels throughout the year, visit Rennes UV Index.
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In Rennes, France, the winter month of December enjoys a modest 185 hours of sunshine, reflecting a gentle decline as the year comes to a close. This trend is part of a seasonal ebb and flow, where sunlight gradually increases from a mere 135 hours in January to a peak of 414 hours in July. The year’s brightest days gradually transition through the colorful spring and vibrant summer, allowing for delightful outdoor experiences. However, as autumn deepens into winter, sunlight begins to wane, with December notably less radiant than the vibrant May and June months, which boast nearly 400 hours each. This shift towards shorter days underscores the cozy charm of the season, inviting residents to embrace the warmth of indoor gatherings while eagerly anticipating the return of longer, sun-drenched days ahead.
In Rennes, France, December greets residents with a 25% chance of sunny weather, which marks a noticeable dip as the year winds down. This lower probability contrasts sharply with the sunnier months of March and April, which boast chances of 48% and 56%, respectively. As the seasons transition, especially post-summer, the hope for bright days declines progressively, with November offering a modest 37% before sliding into the cloudier December. This trend underscores the shift towards a colder, gloomier winter, reinforcing the idea that while sunny days can still appear, they are increasingly elusive during this time of year.
As December settles in Rennes, France, the city experiences a return to shorter days, with daylight lasting around 8 hours. This marks a significant decline from the 15 hours enjoyed during the peak of summer in June and July. The trend of decreasing daylight begins in September, gradually tapering off until reaching its winter minimum in December. This cycle highlights the harmonious yet stark contrast between the long, sun-drenched days of spring and summer, and the cozy, dimmed atmosphere of winter. As the year draws to a close, the shorter days invite a sense of reflection, wrapping the city in a blanket of twilight that encourages quiet introspection and warmth as the festive season approaches.
As winter settles in, December brings a notable shift in wind patterns to Rennes, France, with an average wind speed of 4.2 m/s (9 mph). This briskness marks a slight increase compared to the preceding months, reflecting a trend toward stronger breezes as the year draws to a close. In contrast to the lighter winds of summer, where speeds dipped to a low of 2.7 m/s (6 mph) in June, the festive season's gusts foster a refreshing atmosphere. Interestingly, December's winds align with the upswing seen earlier in the year, particularly in February and May, which both showcased comparable speeds of 4.4 m/s (10 mph) and 4.3 m/s (10 mph), respectively. This invigorating breeze not only adds a touch of energy to the cold air but also echoes the dynamism of Rennes as it transitions into a new year.
The weather in Rennes 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 Rennes and find detailed weather information for every month.
In December, the weather is characterized by a wider temperature range with a minimum of -3°C (26°F) and an average of 7°C (46°F), while January sees a slightly colder minimum of -7°C (19°F) and a similar average of 6°C (43°F). Both months experience maximum temperatures around 16°C (60°F). However, December is significantly wetter, with 97 mm (3.8 in) of precipitation spread over 15 days, compared to January's 46 mm (1.8 in) over just 9 days. Humidity remains high in both months, at 90% in December and 88% in January, contributing to the chill in the air. For more detailed weather information specific to January, visit Rennes weather in January.
In December, the weather tends to be cooler and wetter, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 16°C (60°F), and an average temperature of 7°C (46°F). This month typically sees around 97 mm (3.8 in) of precipitation over 15 days, contributing to a high humidity level of 90%.
In contrast, February experiences slightly lower minimum temperatures, dipping to -6°C (22°F), while maximum temperatures can reach 21°C (69°F), with an average of 7°C (45°F). Precipitation in February is less, totaling 60 mm (2.3 in) across 11 days, and humidity remains relatively high at 87%.
For a more detailed look at weather conditions in February, you can visit Rennes weather in February.
In December, the weather is generally colder, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 16°C (60°F) and an average of 7°C (46°F). The month also sees higher rainfall, with a total of 97 mm (3.8 in) spread across approximately 15 days and a high humidity level of 90%. In contrast, March experiences slightly milder temperatures, with a minimum of -7°C (20°F) and a maximum of 24°C (75°F), averaging 9°C (48°F). Precipitation decreases to 58 mm (2.3 in) over about 12 days, and humidity drops to 84%. For more detailed insights on March weather, check Rennes weather in March.
December and April present contrasting weather conditions. In December, temperatures range from a chilly -3°C (26°F) to a mild 16°C (60°F), with an average of 7°C (46°F). The month sees significant precipitation, totaling 97 mm (3.8 in) over approximately 15 days, coupled with high humidity at 90%. In contrast, April enjoys milder temperatures, with a minimum of -2°C (28°F) and a maximum reaching 26°C (80°F), averaging 11°C (52°F). Precipitation is reduced to 48 mm (1.9 in) across 9 days, and humidity levels are slightly lower at 83%. For a more detailed look at April weather, visit Rennes weather in April.
In December, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 16°C (60°F) and an average of 7°C (46°F). This month experiences significant precipitation, with 97 mm (3.8 in) over approximately 15 days, and high humidity levels at 90%. In contrast, May brings a much milder climate, with temperatures starting at a minimum of 0°C (32°F) and peaking at a maximum of 30°C (86°F), averaging around 14°C (58°F). Precipitation in May is lower, at 67 mm (2.6 in) over 11 days, and humidity decreases to 81%. For a detailed look into the climate during this vibrant month, you can check Rennes weather in May.
December and June present contrasting weather patterns. In December, temperatures are notably cooler, with a minimum of -3°C (26°F) and an average of 7°C (46°F), while June boasts milder conditions with a minimum of 6°C (44°F) and an average of 18°C (64°F). Precipitation levels are similar, with December receiving 97 mm (3.8 in) over 15 days and June slightly higher at 100 mm (3.9 in) over just 11 days. Additionally, December has a higher humidity level at 90%, compared to June's 75%, contributing to the wintry chill felt during the former month. For a closer look at weather conditions in the summer, visit Rennes weather in June.
December and July present a striking contrast in weather patterns. In December, temperatures can dip as low as -3°C (26°F) during the night, with an average of 7°C (46°F) and highs reaching up to 16°C (60°F). The month is characterized by significant precipitation, averaging 97 mm (3.8 in) over approximately 15 days, coupled with high humidity levels around 90%. In contrast, July boasts much warmer temperatures, with nighttime lows averaging 7°C (46°F) and daytime highs peaking at a scorching 37°C (99°F), resulting in an average temperature of 19°C (67°F). Precipitation during this month is notably lower, at 50 mm (2.0 in) spread over just 8 days, and the humidity decreases to a more comfortable 65%. For those interested in specific weather patterns, you can find more information here: Rennes weather in July.
December and August present stark contrasts in weather conditions. December experiences cooler temperatures, with averages around 7°C (46°F) and a chilly minimum dipping to -3°C (26°F). This month also sees considerable precipitation, totaling 97 mm (3.8 in) over approximately 15 days, accompanied by high humidity levels of 90%. In contrast, August boasts warmer temperatures, featuring an average of 19°C (66°F) and a maximum that can reach up to 35°C (96°F). Additionally, precipitation is lighter, with only 53 mm (2.1 in) spread across 8 days, and a more comfortable humidity of 67%. For a closer look at the weather during this summer month, check out Rennes weather in August.
In December, the weather is much colder compared to September, with average temperatures ranging from a minimum of -3°C (26°F) to a maximum of 16°C (60°F), while September enjoys milder temperatures, averaging between 5°C (41°F) and 32°C (90°F). December also sees more frequent precipitation, totaling 97 mm (3.8 in) over 15 days, in contrast to September's 55 mm (2.2 in) across just 9 days. Additionally, the humidity levels are significantly higher in December at 90%, compared to September's 75%, suggesting a much chillier and wetter atmosphere as the year comes to a close. For more detailed information, you can check Rennes weather in September.
In comparing the weather between December and October, December presents a much colder climate, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 16°C (60°F), yielding an average of 7°C (46°F). In contrast, October enjoys milder conditions, featuring temperatures from a minimum of 3°C (37°F) to a comfortable maximum of 24°C (76°F), with an average of 13°C (55°F). Precipitation levels are slightly higher in December, with 97 mm (3.8 in) over 15 days, compared to October's 88 mm (3.5 in) over 11 days. Additionally, humidity is consistently high in both months, with December at 90% and October at 85%. For more details about October's weather, you can visit Rennes weather in October.
December weather typically reflects a slight chill compared to November, with minimum temperatures dropping to -3°C (26°F) compared to November's -1°C (30°F). The average temperature in December is around 7°C (46°F), while November averages at 8°C (48°F), indicating a subtle cooling trend as winter approaches. Additionally, December experiences more precipitation, with 97 mm (3.8 in) falling over 15 days, compared to November's 71 mm (2.8 in) over 11 days. Humidity levels remain relatively high in both months, with December at 90% and November at 88%. For more details on November's weather, visit Rennes weather in November.
As December settles in over Rennes, it brings cooler temperatures and a distinct change from the milder weather of previous months. With maximum daily highs around 16°C and chilling lows that can dip to -3°C, residents and visitors alike should prepare for a cozy winter atmosphere. The month also sees significant rainfall, averaging 97 mm across approximately 15 days, contributing to a high humidity level of 90% that adds to the crispness in the air. This transitional period between autumn and winter offers a unique charm, inviting you to experience the city's festive spirit. To learn more about how Rennes' weather varies throughout the year, visit Rennes Climate.