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December Weather in Cerro de San Pedro, Mexico

Last updated: August 27, 2025

In December, the average temperature in Cerro de San Pedro, Mexico hovers around 13°C (56°F). Visitors should prepare for a range of temperatures, with a cool minimum of -4°C (25°F) and a warm maximum of 28°C (83°F). On average, expect 10 mm (0.4 in) of precipitation over just 1 day, coupled with a high humidity level of 87%.

December Temperature in Cerro de San Pedro

In December in Cerro de San Pedro, the average temperature is 13°C (56°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as -4°C (25°F). This makes it a perfect time for travelers to experience a mix of mild and warm weather, so be sure to pack accordingly for various temperatures.

December Weather in Cerro de San Pedro: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Cerro de San Pedro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cerro de San Pedro, December typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (83°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec556064697270696967645955
Data source: Temperature data for Cerro de San Pedro 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 Cerro de San Pedro

In Cerro de San Pedro in December, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

December Precipitation Trends in Cerro de San Pedro

The chart displays monthly precipitation patterns in Cerro de San Pedro, 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 Cerro de San Pedro, December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec101114174992935291662110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cerro de San Pedro

In Cerro de San Pedro in December humidity is 87%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it challenging to explore comfortably.

December Average Humidity in Cerro de San Pedro

This chart illustrates the average monthly humidity levels in Cerro de San Pedro, 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 Cerro de San Pedro is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cerro de San Pedro

In Cerro de San Pedro 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 Cerro de San Pedro.

Maximum UV Index Levels in Cerro de San Pedro for December

The chart shows the monthly maximum UV Index (UVI) for Cerro de San Pedro 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 Cerro de San Pedro typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811131414141414131298
Data source: Cerro de San Pedro 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 Cerro de San Pedro Compares to Other Months

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

This table compares monthly weather conditions in Cerro de San Pedro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)10 mm (0.4 inches)75%very high
February Weather16°C (60°F)11 mm (0.4 inches)69%extreme
March Weather18°C (64°F)14 mm (0.6 inches)65%extreme
April Weather20°C (69°F)17 mm (0.7 inches)64%extreme
May Weather22°C (72°F)49 mm (1.9 inches)75%extreme
June Weather21°C (70°F)92 mm (3.6 inches)78%extreme
July Weather20°C (69°F)93 mm (3.7 inches)67%extreme
August Weather21°C (69°F)52 mm (2.1 inches)64%extreme
September Weather19°C (67°F)91 mm (3.6 inches)81%extreme
October Weather18°C (64°F)66 mm (2.6 inches)85%extreme
November Weather15°C (59°F)21 mm (0.8 inches)87%very high
December Weather13°C (56°F)10 mm (0.4 inches)87%very high

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