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December Weather in Santiago de la Pena, Mexico

Last updated: August 27, 2025

In Santiago de la Pena, Mexico, the average temperature in December hovers around 21°C (70°F), making it a pleasant time to visit. Visitors can expect temperatures to range from a cool 9°C (48°F) to a warm 33°C (91°F). With an average humidity of 91%, it’s advisable to stay hydrated during your adventures. Rainfall is relatively light, with an average of 18 mm (0.7 in) over 4 days—perfect for those who enjoy both sunshine and the occasional shower.

December Temperature in Santiago de la Pena

In December in Santiago de la Pena, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 9°C (48°F). This pleasant temperature range makes Santiago de la Pena an ideal destination for travelers seeking comfortable weather.

December Weather in Santiago de la Pena: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santiago de la Pena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago de la Pena, December typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (91°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec697175798484848583797470
Data source: Temperature data for Santiago de la Pena 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 Santiago de la Pena

In Santiago de la Pena in December, the total precipitation amount is 18 mm (0.7 in) spread over a duration of 4 days.

December Precipitation Trends in Santiago de la Pena

The chart displays monthly precipitation patterns in Santiago de la Pena, 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 Santiago de la Pena, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec4428385396165941141621655818
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santiago de la Pena

In Santiago de la Pena in December, humidity is 91%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket wrapped around you, making travel slightly uncomfortable as the air clings to your skin and every step requires a little more effort.

December Average Humidity in Santiago de la Pena

This chart illustrates the average monthly humidity levels in Santiago de la Pena, 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 Santiago de la Pena is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santiago de la Pena

In Santiago de la Pena 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 Santiago de la Pena.

Maximum UV Index Levels in Santiago de la Pena for December

The chart shows the monthly maximum UV Index (UVI) for Santiago de la Pena 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 Santiago de la Pena typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111212131312121087
Data source: Santiago de la Pena 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 Santiago de la Pena Compares to Other Months

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

This table compares monthly weather conditions in Santiago de la Pena, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)44 mm (1.7 inches)88%high
February Weather22°C (71°F)28 mm (1.1 inches)86%very high
March Weather24°C (75°F)38 mm (1.5 inches)83%extreme
April Weather26°C (80°F)53 mm (2.1 inches)80%extreme
May Weather29°C (84°F)96 mm (3.8 inches)82%extreme
June Weather29°C (84°F)165 mm (6.5 inches)79%extreme
July Weather29°C (85°F)94 mm (3.7 inches)72%extreme
August Weather29°C (85°F)114 mm (4.5 inches)74%extreme
September Weather28°C (83°F)162 mm (6.4 inches)84%extreme
October Weather26°C (80°F)165 mm (6.5 inches)92%very high
November Weather23°C (74°F)58 mm (2.3 inches)91%very high
December Weather21°C (70°F)18 mm (0.7 inches)91%high

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