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December Weather in Riaille, France

Last updated: August 23, 2025

In December, the average temperature in Riaille, France hovers around 7°C (46°F), with daily variations ranging from a chilly -3°C (26°F) to a mild 17°C (62°F). Expect about 99 mm (3.9 in) of precipitation spread over 15 days, contributing to a high average humidity of 90%. If you're planning to visit, be prepared for a mix of cool weather and damp conditions!

December Temperature in Riaille

In December in Riaille, the average temperature is 7°C (46°F). Maximums can reach 17°C (62°F), while minimums can be as low as -3°C (26°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates December temperature patterns in Riaille, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riaille, December typically has an average temperature of 7°C (46°F), with highs reaching up to 17°C (62°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec434548535865686763564745
Data source: Temperature data for Riaille 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 Riaille

In Riaille in December, the total precipitation amount is 99 mm (3.9 in) over the course of 15 days.

December Precipitation Trends in Riaille

The chart displays monthly precipitation patterns in Riaille, 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 Riaille, December typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec506266506390394348827699
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Riaille

In Riaille in December humidity is 90%. With an average temperature of 7°C (46°F), this humidity feels like a heavy blanket wrapping around you, making it feel much colder than it actually is, which can be quite uncomfortable for traveling.

December Average Humidity in Riaille

This chart illustrates the average monthly humidity levels in Riaille, 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 Riaille is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%84%83%81%75%65%67%75%85%88%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Riaille

In Riaille 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 Riaille, you can visit Hourly UV Index in Riaille.

Maximum UV Index Levels in Riaille for December

The chart shows the monthly maximum UV Index (UVI) for Riaille 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 Riaille typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986422
Data source: Riaille 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 Riaille Compares to Other Months

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

This table compares monthly weather conditions in Riaille, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)50 mm (1.9 inches)88%low
February Weather7°C (45°F)62 mm (2.4 inches)87%moderate
March Weather9°C (48°F)66 mm (2.6 inches)84%moderate
April Weather12°C (53°F)50 mm (2.0 inches)83%high
May Weather15°C (59°F)63 mm (2.5 inches)81%very high
June Weather18°C (65°F)90 mm (3.5 inches)75%very high
July Weather20°C (69°F)39 mm (1.5 inches)65%very high
August Weather19°C (67°F)43 mm (1.7 inches)67%very high
September Weather17°C (63°F)48 mm (1.9 inches)75%high
October Weather13°C (56°F)82 mm (3.2 inches)85%moderate
November Weather9°C (48°F)76 mm (3.0 inches)88%low
December Weather7°C (46°F)99 mm (3.9 inches)90%low

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