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December Weather in San Jeronimo, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Jeronimo, Mexico hovers around 10°C (49°F). Expect a minimum chill of -4°C (24°F) and a pleasant maximum of 24°C (75°F). During this month, precipitation is relatively mild, totaling 52 mm (2.1 in) over 5 days. Embrace the season with an average humidity level of 78%, adding a refreshing touch to the air.

December Temperature in San Jeronimo

In December in San Jeronimo, the average temperature is 10°C (49°F). Maximums can reach 24°C (75°F), while minimums can drop to as low as -4°C (24°F). This makes San Jeronimo an ideal destination for travelers seeking a diverse range of weather experiences during their visit.

December Weather in San Jeronimo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Jeronimo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jeronimo, December typically has an average temperature of 10°C (49°F), with highs reaching up to 24°C (75°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec485055586264626361605549
Data source: Temperature data for San Jeronimo 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 San Jeronimo

In San Jeronimo in December, the precipitation amount is 52 mm (2.1 in) over a period of 5 days.

December Precipitation Trends in San Jeronimo

The chart displays monthly precipitation patterns in San Jeronimo, 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 San Jeronimo, December typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec3145118311703572722411183853
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Jeronimo

In San Jeronimo in December humidity is 78%. With average temperature 10°C (49°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while exploring.

December Average Humidity in San Jeronimo

This chart illustrates the average monthly humidity levels in San Jeronimo, 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 San Jeronimo is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%66%61%56%61%73%82%83%83%79%77%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Jeronimo

In San Jeronimo in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in San Jeronimo.

Maximum UV Index Levels in San Jeronimo for December

The chart shows the monthly maximum UV Index (UVI) for San Jeronimo 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 San Jeronimo typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811121414131313131297
Data source: San Jeronimo 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 San Jeronimo Compares to Other Months

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

This table compares monthly weather conditions in San Jeronimo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)31 mm (1.2 inches)74%very high
February Weather10°C (51°F)45 mm (1.8 inches)66%extreme
March Weather13°C (55°F)11 mm (0.4 inches)61%extreme
April Weather14°C (58°F)8 mm (0.3 inches)56%extreme
May Weather17°C (62°F)30 mm (1.2 inches)61%extreme
June Weather18°C (64°F)170 mm (6.7 inches)73%extreme
July Weather16°C (62°F)357 mm (14.0 inches)82%extreme
August Weather17°C (63°F)272 mm (10.7 inches)83%extreme
September Weather16°C (62°F)241 mm (9.5 inches)83%extreme
October Weather16°C (60°F)117 mm (4.6 inches)78%extreme
November Weather13°C (55°F)38 mm (1.5 inches)77%very high
December Weather10°C (49°F)52 mm (2.1 inches)78%high

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