nomadseason

December Weather in Mergey, France

Last updated: August 23, 2025

In December, the average temperature in Mergey, France hovers around 6°C (43°F). Expect a chilly minimum of -4°C (24°F) and a pleasant maximum of 17°C (63°F). During this month, you can anticipate 109 mm (4.3 in) of precipitation over approximately 17 days, accompanied by a high average humidity level of 93%.

December Temperature in Mergey

In December in Mergey, the average temperature is 6°C (43°F). The maximum can reach 17°C (63°F), and the minimum can be as low as -4°C (24°F). Travelers should pack layers to comfortably enjoy the varied temperatures during their visit.

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

The chart illustrates December temperature patterns in Mergey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mergey, December typically has an average temperature of 6°C (43°F), with highs reaching up to 17°C (63°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec394346525867706963554542
Data source: Temperature data for Mergey 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 Mergey

In Mergey in December, the precipitation amount is 109 mm (4.3 in), occurring over the course of 17 days.

December Precipitation Trends in Mergey

The chart displays monthly precipitation patterns in Mergey, 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 Mergey, December typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec7766693269665248517669109
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Mergey

In Mergey in December, humidity is 93%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making travel particularly uncomfortable and the air feel heavy, as though every step is met with resistance.

December Average Humidity in Mergey

This chart illustrates the average monthly humidity levels in Mergey, 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 Mergey is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%83%83%80%76%81%88%92%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mergey

In Mergey in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Mergey.

Maximum UV Index Levels in Mergey for December

The chart shows the monthly maximum UV Index (UVI) for Mergey 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 Mergey typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Mergey 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 Mergey Compares to Other Months

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

This table compares monthly weather conditions in Mergey, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)77 mm (3.0 inches)91%low
February Weather6°C (43°F)66 mm (2.6 inches)89%moderate
March Weather8°C (47°F)69 mm (2.7 inches)86%moderate
April Weather11°C (52°F)32 mm (1.3 inches)84%high
May Weather15°C (59°F)69 mm (2.7 inches)82%very high
June Weather19°C (67°F)66 mm (2.6 inches)82%very high
July Weather21°C (70°F)52 mm (2.0 inches)80%very high
August Weather21°C (69°F)48 mm (1.9 inches)76%very high
September Weather17°C (63°F)51 mm (2.0 inches)81%high
October Weather13°C (55°F)76 mm (3.0 inches)88%moderate
November Weather7°C (45°F)69 mm (2.7 inches)92%low
December Weather6°C (43°F)109 mm (4.3 inches)93%low

Compare Mergey's Climate with Cities Worldwide