December Weather in Saint-Denis, France

Last updated: February 26, 2025

December in Saint-Denis, France, is characterized by a chilly atmosphere, with temperatures ranging from a maximum of 15°C (60°F) to a minimum of -3°C (27°F). The average temperature settles at a brisk 6°C (43°F), making warm layers essential for outdoor activities. This month also witnesses considerable precipitation, totaling 102 mm (4.0 in) over 16 days, contributing to the region's lush greenery. Coupled with a high humidity level of 93%, the weather creates a damp, wintry setting that invites both cozy indoor gatherings and refreshing outdoor strolls.

December Temperature in Saint-Denis

In Saint-Denis, France, December marks a transition into the colder months, with temperatures reflecting a gradual decline from the milder autumn. The average temperature drops to 6°C (43°F), lightly hovering above freezing. This month witnesses minimum temperatures reaching as low as -3°C (27°F), making it one of the cooler periods of the year. However, daytime highs still provide a bit of comfort, peaking at 15°C (60°F). As the year draws to a close, residents can expect a crisp chill in the air, reminiscent of the winter season ahead, but with some forgiving sunny days to balance the cold.

December Weather in Saint-Denis: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint-Denis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404346525765686762554643
Data source: Temperature data for Saint-Denis 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 Saint-Denis

In December, Saint-Denis, France, experiences a notable increase in precipitation, with a substantial total of 102 mm (4.0 in), making it the wettest month of the year. This month is marked by 16 days of rainfall, showcasing a trend toward more frequent and intense precipitation compared to earlier months. Notably, December's precipitation surpasses that of November and October, which had 66 mm (2.6 in) and 78 mm (3.1 in) respectively, indicating a significant uptick in wet weather as winter settles in. This shift underscores the transition into colder months, where not only does the overall amount of rainfall rise but the number of rainy days also peaks, presenting a damp and chilly end to the year.

December Precipitation Trends in Saint-Denis

The chart displays monthly precipitation patterns in Saint-Denis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5669753470744959407866102
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint-Denis

In Saint-Denis, France, December marks a notable peak in humidity, reaching 93%, just above November's 92%. This rise in moisture contrasts sharply with the drier summer months, where humidity dipped as low as 68% in August. As the year progresses, there is a clear trend of increasing humidity during the colder months, with January starting at a high 91% before gradually declining to a summer low. The gradual escalation from the dryness of mid-year back to the moist winters creates a distinct seasonal rhythm, highlighting the transition from the warmth of summer to the chill of winter.

December Average Humidity in Saint-Denis

This chart illustrates the average monthly humidity levels in Saint-Denis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint-Denis

In December, Saint-Denis experiences a notable decline in UV exposure, with the UV Index dropping to 1, categorizing it as low. This trend reflects the gradual decrease in sunlight as winter sets in, allowing safe outdoor activities with a burn time of 45 minutes before risk becomes a concern. The preceding months, particularly from May to August, showcase a stark contrast, featuring very high UV Index levels that demand more precaution. As a result, residents and visitors can enjoy the crisp winter air without the intensity of earlier months, making December a perfect time to explore the city with minimal sun protection worries. For more details on UV levels throughout the year, visit Saint-Denis UV Index.

Maximum UV Index Levels in Saint-Denis for December

The chart shows the monthly maximum UV Index (UVI) for Saint-Denis 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.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Saint-Denis 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 Saint-Denis

In Saint-Denis, France, the December sunshine brings a gentler glow than the vibrant rays of summer, with the month recording 159 hours of sunlight. As the year winds down, the sun's presence diminishes, showcasing a distinct shift from the peak of June, where daylight soared to 409 hours. The trend clearly illustrates a gradual reduction of daylight starting from the summer months, with hours dwindling steadily through the autumn. November, with 201 hours, offers a prelude to December's more subdued light, ultimately setting the stage for the cold embrace of winter. Although December's sunlight may be limited, it serves as a reminder of the vibrant vitality that flourished just months prior, while also hinting at the promise of brighter days ahead.

Monthly Sunshine Duration in Saint-Denis: December Highlighted

The December sunshine duration represents the total number of hours Saint-Denis 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.
JanFebMarAprMayJunJulAugSepOctNovDec124h202h270h356h389h409h411h385h323h266h201h159h
Data source: Saint-Denis December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint-Denis During December

In Saint-Denis, France, the likelihood of sunny weather in December is relatively low, standing at 25%. This reflects a slight dip compared to November's 24%, suggesting a trend of diminishing sunshine as winter approaches. As the year progresses, there is a noticeable increase in sunny days reaching a peak in April at 58%, followed by a gradual decline through the late spring and summer months, which hover around the mid-30s. Although December offers a touch more sunshine than the preceding month, the overall picture for the end of the year indicates a shift toward cloudier days and cooler weather. This underscores the seasonal transition typical in this region, where the warmth of late spring gives way to the chill of winter, accompanied by minimal sunny spells.

Percentage of Sunny Days in December in Saint-Denis

The chart illustrates the percentage of sunny days in Saint-Denis 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 Saint-Denis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%27%45%58%35%36%36%36%40%41%25%25%
Data source: Saint-Denis December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint-Denis in December

In Saint-Denis, France, the daylight duration experiences a notable rhythm throughout the year, culminating in December with only 8 hours of daylight. This seasonal shift begins with longer days in the spring, peaking at 16 hours in June, when the sun generously lights up the horizon. As summer fades into autumn, daylight gradually diminishes, dropping to 12 hours in September and then further to 10 hours in October. November brings a slight dip to 9 hours, leading into the shortest days of the year. This cyclical pattern not only marks the transition from the vibrant brightness of spring and summer to the quieter, subdued light of winter but also emphasizes the serene beauty of dusk during the festive season.

Average Daylight Hours in Saint-Denis for December

The chart illustrates the variation in daylight duration in Saint-Denis throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 44m10h 9m11h 55m13h 44m15h 18m16h 6m15h 41m14h 17m12h 32m10h 44m9h 7m8h 17m
Data source: Saint-Denis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Saint-Denis

In Saint-Denis, France, the December wind brings a refreshing briskness as it averages 3.8 m/s (8 mph), a slight uptick from the preceding months. Throughout the year, wind speeds in this vibrant town tend to fluctuate, peaking in the spring and early summer. Notably, December's gentle breezes are a welcome shift from the calmer summer months, which often bring lower averages, such as 2.6 m/s (6 mph) in June. As the year draws to a close, the winds of December echo the dynamic nature of the seasons, bridging the quieter summer with the frosty chill of winter, setting the stage for cozy evenings and festive gatherings.

Average December Wind Speed in Saint-Denis

The chart displays monthly wind speed patterns in Saint-Denis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.13.83.44.12.63.23.22.73.63.13.8 m/s
Data source: Saint-Denis December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Saint-Denis Compares to Other Months

The weather in Saint-Denis 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 Saint-Denis and find detailed weather information for every month.

In December, temperatures range from a chilly -3°C (27°F) at night to a mild 15°C (60°F) during the day, creating an average temperature of 6°C (43°F). The month sees significant precipitation, with around 102 mm (4.0 in) spread over 16 days, accompanied by high humidity levels at 93%. In contrast, January experiences slightly colder temperatures, with a minimum of -7°C (19°F) and a maximum of 14°C (58°F), averaging around 5°C (40°F). Precipitation decreases to 56 mm (2.2 in) over just 10 days, and humidity remains relatively low at 91%. For more detailed information, visit Saint-Denis weather in January.

December and February exhibit notable differences in weather patterns. In December, temperatures range from a chilly -3°C (27°F) to a mild 15°C (60°F), with an average of 6°C (43°F). The month sees a higher rainfall of 102 mm (4.0 in) over 16 days, contributing to a high humidity level of 93%. Meanwhile, February experiences slightly colder temperatures, with a minimum of -6°C (21°F) and a maximum of 19°C (67°F), yet the average remains the same at 6°C (43°F). Precipitation decreases to 69 mm (2.7 in) over 13 days, resulting in lower humidity at 89%. For a detailed look at February weather, you can visit Saint-Denis weather in February.

December and March present distinct differences in weather patterns. In December, temperatures range from a chilly -3°C (27°F) to a mild 15°C (60°F), with an average of 6°C (43°F) and high humidity at 93%. The month also experiences significant precipitation, totaling 102 mm (4.0 in) over 16 days. Conversely, March sees a wider temperature range, with minimums dipping to -8°C (17°F) and maximums reaching 24°C (75°F), averaging around 8°C (47°F). While precipitation is lower at 75 mm (3.0 in) over 15 days, the humidity decreases to 85%. Overall, March offers a more varied climate, transitioning toward the warmth of spring, unlike the colder, wetter December. For more details, you can check Saint-Denis weather in March.

In December, the weather is typically colder, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F), and a high humidity of 93%. The month is also quite rainy, with 102 mm (4.0 in) of precipitation over 16 days. In contrast, April brings milder temperatures, averaging 11°C (52°F) with highs reaching 27°C (81°F). Precipitation significantly decreases to 34 mm (1.3 in) over just 7 days, and humidity drops to 84%. For those interested in more details, you can visit Saint-Denis weather in April.

When comparing the weather in December and May, notable differences emerge in temperature and precipitation levels. December experiences cooler temperatures, with a minimum average of -3°C (27°F) and a maximum of 15°C (60°F), while May boasts milder conditions, with minimums starting at 0°C (33°F) and maximums reaching 29°C (85°F). Additionally, December records higher precipitation, totaling 102 mm (4.0 in) over 16 days, compared to May's 70 mm (2.7 in) over 13 days. Humidity levels are also elevated in December at 93%, compared to May's 82%. For more specific insights into the climate during this time, you can explore Saint-Denis weather in May.

December and June present contrasting weather profiles. In December, temperatures range from a chilly min of -3°C (27°F) to a mild max of 15°C (60°F), with an average of 6°C (43°F). The month also experiences significant precipitation, totaling 102 mm (4.0 in) over 16 days, coupled with high humidity at 93%. In contrast, June boasts warmer temperatures, ranging from a minimum of 6°C (44°F) to a scorching maximum of 35°C (96°F), with an average temperature of 19°C (66°F). Precipitation is lighter in June at 74 mm (2.9 in) over 11 days, and humidity is lower at 80%. For more detailed insights on June weather, you can check Saint-Denis weather in June.

December and July present strikingly contrasting weather patterns. In December, temperatures range from a chilly -3°C (27°F) to a mild 15°C (60°F), with an average of 6°C (43°F). The month experiences significant precipitation, totaling 102 mm (4.0 in) over 16 days, coupled with high humidity at 93%. In contrast, July boasts much warmer temperatures, with a minimum of 8°C (46°F), an average of 20°C (69°F), and maximums soaring up to 41°C (106°F). Additionally, precipitation in July is considerably lower at 49 mm (1.9 in), occurring over just 8 days, and humidity drops to a more comfortable 73%. For a deeper dive into the weather specifics of July, check out Saint-Denis weather in July.

December and August present starkly contrasting weather patterns. In December, temperatures range from a chilly -3°C (27°F) at night to a mild 15°C (60°F) during the day, with an average of 6°C (43°F). The month is quite damp, featuring 102 mm (4.0 in) of precipitation over 16 days and a high humidity of 93%. In comparison, August boasts much warmer temperatures, with nighttime lows of 7°C (44°F), daytime highs reaching a scorching 37°C (99°F), and an average temperature of 20°C (68°F). Rain is less frequent in August, with only 58 mm (2.3 in) of precipitation across 9 days and a humidity level of 68%. For a deeper look at the conditions in August, you can explore Saint-Denis weather in August.

When comparing the weather in December and September, distinct differences emerge. December tends to be much cooler, with average temperatures ranging from a low of -3°C (27°F) to a maximum of 15°C (60°F), contrasting sharply with September's milder climate, where temperatures vary from a low of 4°C (40°F) to a warm high of 33°C (91°F). Additionally, December experiences significantly more precipitation, totaling 102 mm (4.0 in) over approximately 16 days, while September sees a modest 40 mm (1.6 in) over just 9 days. The humidity levels also differ, with December being more humid at 93% compared to September's 76%. For more detailed information, you can visit Saint-Denis weather in September.

December weather in Saint-Denis is characterized by chillier temperatures, with a minimum of -3°C (27°F) and an average of 6°C (43°F), compared to the milder October, which sees temperatures ranging from a minimum of 2°C (36°F) to an average of 13°C (55°F) and a maximum of 26°C (78°F). Precipitation also increases in December, totaling 102 mm (4.0 in) over 16 days, while October receives 78 mm (3.1 in) over 12 days. Additionally, December tends to be more humid, with 93% humidity compared to October's 88%. For more detailed information, you can check Saint-Denis weather in October.

In December, the weather takes a noticeable turn with temperatures averaging 6°C (43°F), compared to a slightly warmer average of 8°C (46°F) in November. Both months experience similar minimum temperatures of -3°C (27°F), but December's maximum temperature is lower, reaching only 15°C (60°F) compared to November's 19°C (66°F). Precipitation also increases in December, totaling 102 mm (4.0 in) over 16 days, while November has less rainfall at 66 mm (2.6 in) over 14 days. Humidity remains relatively high in both months, with December at 93% and November at 92%. For more detailed information, you can check Saint-Denis weather in November.

Compare Saint-Denis's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Saint-Denis

As December unfolds in Saint-Denis, the weather takes on a distinct chill, marked by significantly lower temperatures and increased humidity, making it noticeably different from other months. With a maximum temperature struggling to reach 15°C (60°F), and frequent drops to below freezing, this month often feels much colder. Additionally, december typically sees more precipitation, contributing to a gray, damp atmosphere with nearly half the month witnessing rainy days. This seasonal shift creates a stark contrast to the warmer, drier months, inviting residents and visitors alike to bundle up and embrace the winter charm. For more detailed information on the climate throughout the year, visit Saint-Denis Climate.