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December Weather in Saint-Dionisy, France

Last updated: August 23, 2025

The average temperature in Saint-Dionisy, France during December is a refreshing 8°C (47°F). Expect a minimum of -3°C (27°F) and a comfortable maximum of 20°C (68°F). Be prepared for precipitation totaling 55 mm (2.2 in) over approximately 10 days and a noteworthy average humidity of 83%.

December Temperature in Saint-Dionisy

In December in Saint-Dionisy, the average temperature is 8°C (47°F), with maximums reaching 20°C (68°F) and minimums dropping as low as -3°C (27°F). This range suggests that travelers should be prepared for both mild and chilly weather during their visit.

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

The chart illustrates December temperature patterns in Saint-Dionisy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Dionisy, December typically has an average temperature of 8°C (47°F), with highs reaching up to 20°C (68°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec454953586574797871625247
Data source: Temperature data for Saint-Dionisy 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 Saint-Dionisy

In Saint-Dionisy in December, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

December Precipitation Trends in Saint-Dionisy

The chart displays monthly precipitation patterns in Saint-Dionisy, 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. In Saint-Dionisy, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec5335607166352039539812355
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint-Dionisy

In Saint-Dionisy in December humidity is 83%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making travel uncomfortable and leaving you yearning for warmth and dryness as you explore.

December Average Humidity in Saint-Dionisy

This chart illustrates the average monthly humidity levels in Saint-Dionisy, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Saint-Dionisy is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%77%73%73%71%67%66%63%70%80%84%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint-Dionisy

In Saint-Dionisy in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Saint-Dionisy, you can visit Hourly UV Index in Saint-Dionisy.

Maximum UV Index Levels in Saint-Dionisy for December

The chart shows the monthly maximum UV Index (UVI) for Saint-Dionisy 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. In December, the maximum UV index in Saint-Dionisy typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Saint-Dionisy 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.

How December Weather in Saint-Dionisy Compares to Other Months

Weather in Saint-Dionisy varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Dionisy, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint-Dionisy, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)53 mm (2.1 inches)82%low
February Weather10°C (49°F)34 mm (1.4 inches)77%moderate
March Weather12°C (53°F)60 mm (2.3 inches)73%moderate
April Weather14°C (58°F)71 mm (2.8 inches)73%high
May Weather19°C (66°F)66 mm (2.6 inches)71%very high
June Weather23°C (74°F)35 mm (1.4 inches)67%very high
July Weather26°C (80°F)20 mm (0.8 inches)66%very high
August Weather26°C (78°F)39 mm (1.5 inches)63%very high
September Weather21°C (71°F)53 mm (2.1 inches)70%high
October Weather17°C (62°F)98 mm (3.9 inches)80%moderate
November Weather11°C (53°F)123 mm (4.8 inches)84%moderate
December Weather8°C (47°F)55 mm (2.2 inches)83%low

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