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December Weather in Lerma, Spain

Last updated: August 27, 2025

In December, the average temperature in Lerma, Spain hovers around 5°C (42°F). Expect a range where the minimum can drop to -4°C (24°F), while the maximum may reach up to 17°C (63°F). Throughout the month, precipitation amounts to 70 mm (2.8 in) spread over 13 days, creating a notably humid environment with an average humidity of 90%.

December Temperature in Lerma

In December in Lerma, the average temperature is 5°C (42°F), with maximums reaching 17°C (63°F) and minimums dropping to as low as -4°C (24°F). Travelers should prepare for a mix of chilly and mild weather, making it ideal for layering clothing during outdoor activities.

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

The chart illustrates December temperature patterns in Lerma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lerma, December typically has an average temperature of 5°C (42°F), with highs reaching up to 17°C (63°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec384346515866727264554542
Data source: Temperature data for Lerma 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 Lerma

In Lerma in December, the precipitation amount is 70 mm (2.8 in) spread over 13 days.

December Precipitation Trends in Lerma

The chart displays monthly precipitation patterns in Lerma, 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 Lerma, December typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec495359825554191533538170
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lerma

In Lerma in December, humidity is 90%. With an average temperature of 5°C (42°F), this humidity feels like a chilling dampness that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

December Average Humidity in Lerma

This chart illustrates the average monthly humidity levels in Lerma, 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 Lerma is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%86%79%74%71%63%59%58%66%77%87%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lerma

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

Maximum UV Index Levels in Lerma for December

The chart shows the monthly maximum UV Index (UVI) for Lerma 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 Lerma typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101111108642
Data source: Lerma 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 Lerma Compares to Other Months

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

This table compares monthly weather conditions in Lerma, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)49 mm (1.9 inches)90%moderate
February Weather6°C (44°F)53 mm (2.1 inches)86%moderate
March Weather8°C (46°F)59 mm (2.3 inches)79%high
April Weather10°C (51°F)82 mm (3.2 inches)74%very high
May Weather15°C (59°F)55 mm (2.2 inches)71%very high
June Weather19°C (66°F)53 mm (2.1 inches)63%extreme
July Weather22°C (72°F)19 mm (0.7 inches)59%extreme
August Weather22°C (72°F)15 mm (0.6 inches)58%very high
September Weather18°C (65°F)33 mm (1.3 inches)65%very high
October Weather13°C (56°F)53 mm (2.1 inches)77%high
November Weather7°C (46°F)81 mm (3.2 inches)87%moderate
December Weather5°C (42°F)70 mm (2.8 inches)90%low

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