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December Weather in Lagny-le-Sec, France

Last updated: August 23, 2025

In December, the average temperature in Lagny-le-Sec, France is a brisk 6°C (43°F), with a minimum dipping to -3°C (26°F) and a maximum reaching 15°C (59°F). Expect a notable precipitation amount of 112 mm (4.4 in) spread over 17 days, making the air quite humid at an average of 93%. Prepare for a damp and chilly experience!

December Temperature in Lagny-le-Sec

In December in Lagny-le-Sec, the average temperature is 6°C (43°F). Maximums can reach 15°C (59°F), while minimums can dip as low as -3°C (26°F). Be sure to pack layers to stay comfortable during your travels!

December Weather in Lagny-le-Sec: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Lagny-le-Sec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lagny-le-Sec, December typically has an average temperature of 6°C (43°F), with highs reaching up to 15°C (59°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec404346525866696862554643
Data source: Temperature data for Lagny-le-Sec 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 Lagny-le-Sec

In Lagny-le-Sec in December, the precipitation amount is 112 mm (4.4 in) spread out over 17 days.

December Precipitation Trends in Lagny-le-Sec

The chart displays monthly precipitation patterns in Lagny-le-Sec, 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 Lagny-le-Sec, December typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec6473763369645361488269112
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lagny-le-Sec

In Lagny-le-Sec 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 Lagny-le-Sec

This chart illustrates the average monthly humidity levels in Lagny-le-Sec, 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 Lagny-le-Sec 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 Lagny-le-Sec

In Lagny-le-Sec 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 Lagny-le-Sec.

Maximum UV Index Levels in Lagny-le-Sec for December

The chart shows the monthly maximum UV Index (UVI) for Lagny-le-Sec 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 Lagny-le-Sec typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689876421
Data source: Lagny-le-Sec 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 Lagny-le-Sec Compares to Other Months

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

This table compares monthly weather conditions in Lagny-le-Sec, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)64 mm (2.5 inches)91%low
February Weather6°C (43°F)73 mm (2.9 inches)89%moderate
March Weather8°C (47°F)76 mm (3.0 inches)86%moderate
April Weather11°C (52°F)33 mm (1.3 inches)84%high
May Weather14°C (58°F)68 mm (2.7 inches)82%very high
June Weather19°C (66°F)64 mm (2.5 inches)82%very high
July Weather20°C (69°F)53 mm (2.1 inches)80%very high
August Weather20°C (68°F)61 mm (2.4 inches)76%high
September Weather17°C (62°F)48 mm (1.9 inches)81%high
October Weather13°C (55°F)82 mm (3.2 inches)88%moderate
November Weather8°C (46°F)69 mm (2.7 inches)92%low
December Weather6°C (43°F)112 mm (4.4 inches)93%low

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