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December Weather in San Jeronimo, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Jeronimo, Mexico is a comfortable 24°C (76°F). During this time, temperatures can range from a cool 14°C (57°F) to a warm 35°C (96°F). With only 3 mm (0.1 in) of precipitation across 0 days, you'll likely enjoy plenty of dry weather. Expect an average humidity of 74%, creating a pleasant atmosphere for outdoor activities!

December Temperature in San Jeronimo

In December in San Jeronimo, the average temperature is 24°C (76°F). Maximum temperatures can reach 35°C (96°F), while the minimum can drop to as low as 14°C (57°F). This pleasant climate makes San Jeronimo an ideal destination for travelers seeking comfortable weather and opportunities for outdoor activities.

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 24°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec767881828382818079797876
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 3 mm (0.1 in) during a total of 0 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 3 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec111016102139169170135333
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 74%. With an average temperature of 24°C (76°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel a bit sticky and requiring plenty of hydration as you explore.

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 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%64%54%61%75%83%83%85%85%79%76%75%
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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314141413131188
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 Weather25°C (77°F)1 mm (0.0 inches)70%very high
February Weather25°C (78°F)1 mm (0.1 inches)64%extreme
March Weather27°C (81°F)1 mm (0.0 inches)54%extreme
April Weather28°C (82°F)0 mm (0.0 inches)61%extreme
May Weather28°C (83°F)16 mm (0.6 inches)75%extreme
June Weather28°C (82°F)102 mm (4.0 inches)83%extreme
July Weather27°C (81°F)139 mm (5.5 inches)83%extreme
August Weather27°C (81°F)169 mm (6.7 inches)85%extreme
September Weather26°C (79°F)170 mm (6.7 inches)85%extreme
October Weather26°C (79°F)135 mm (5.3 inches)79%extreme
November Weather25°C (78°F)33 mm (1.3 inches)76%very high
December Weather24°C (76°F)3 mm (0.1 inches)74%very high

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