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December Weather in San Jeronimo Xayacatlan, Mexico

Last updated: August 26, 2025

In December, the average temperature in San Jeronimo Xayacatlan, Mexico hovers around 19°C (67°F), with a minimum dip to 5°C (41°F) and a maximum rise to 33°C (91°F). Expect very minimal rainfall, averaging only 1 mm (0.0 in) over the course of 0 days. The air remains notably humid, with an average humidity level of 88%. Enjoy the mild climate!

December Temperature in San Jeronimo Xayacatlan

In December, in San Jeronimo Xayacatlan, the average temperature is 19°C (67°F). Maximums can reach 33°C (91°F) and minimums can be as low as 5°C (41°F). This diverse range of temperatures makes San Jeronimo Xayacatlan an ideal destination for travelers seeking a mix of warm days and cooler evenings.

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

The chart illustrates December temperature patterns in San Jeronimo Xayacatlan, 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 Xayacatlan, December typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (91°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec666973767773727371716966
Data source: Temperature data for San Jeronimo Xayacatlan 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 Xayacatlan

In San Jeronimo Xayacatlan in December, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.

December Precipitation Trends in San Jeronimo Xayacatlan

The chart displays monthly precipitation patterns in San Jeronimo Xayacatlan, 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 Xayacatlan, December typically receives around 1 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec124146219014419826280111
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Jeronimo Xayacatlan

In San Jeronimo Xayacatlan in December, humidity is 88%. With an average temperature of 19°C (67°F), this humidity feels like a heavy blanket enveloping you, making travel feel sticky and exhausting as you navigate through the sweltering air.

December Average Humidity in San Jeronimo Xayacatlan

This chart illustrates the average monthly humidity levels in San Jeronimo Xayacatlan, 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 Xayacatlan is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Jeronimo Xayacatlan

In San Jeronimo Xayacatlan in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Jeronimo Xayacatlan.

Maximum UV Index Levels in San Jeronimo Xayacatlan for December

The chart shows the monthly maximum UV Index (UVI) for San Jeronimo Xayacatlan 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 Xayacatlan typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141415141412109
Data source: San Jeronimo Xayacatlan 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 Xayacatlan Compares to Other Months

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

This table compares monthly weather conditions in San Jeronimo Xayacatlan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)1 mm (0.1 inches)84%very high
February Weather21°C (69°F)2 mm (0.1 inches)78%extreme
March Weather23°C (73°F)4 mm (0.2 inches)75%extreme
April Weather24°C (76°F)14 mm (0.5 inches)70%extreme
May Weather25°C (77°F)62 mm (2.4 inches)77%extreme
June Weather23°C (73°F)190 mm (7.5 inches)76%extreme
July Weather22°C (73°F)144 mm (5.7 inches)68%extreme
August Weather23°C (73°F)197 mm (7.8 inches)70%extreme
September Weather22°C (71°F)262 mm (10.3 inches)82%extreme
October Weather22°C (71°F)80 mm (3.2 inches)91%extreme
November Weather20°C (69°F)11 mm (0.4 inches)89%very high
December Weather19°C (67°F)1 mm (0.0 inches)88%very high

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