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December Weather in San Juan de los Planes, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Juan de los Planes, Mexico settles at a pleasant 19°C (67°F). Expect temperatures to range from a minimum of 11°C (53°F) to a maximum of 28°C (83°F). You'll find the weather relatively dry, with an average precipitation of only 18 mm (0.7 in) over the course of just 1 day. Additionally, the average humidity hovers around 72%, making it a comfortable time to explore!

December Temperature in San Juan de los Planes

In December in San Juan de los Planes, the average temperature is 19°C (67°F), with maximums reaching 28°C (83°F) and minimums dropping as low as 11°C (53°F). This climate makes it an ideal time for travelers to enjoy outdoor activities while still having the option to cozy up during cooler evenings.

December Weather in San Juan de los Planes: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Juan de los Planes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan de los Planes, December typically has an average temperature of 19°C (67°F), with highs reaching up to 28°C (83°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec646568737782858582807467
Data source: Temperature data for San Juan de los Planes 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 Juan de los Planes

In San Juan de los Planes in December, the precipitation amount is 18 mm (0.7 in) over the course of 1 day.

December Precipitation Trends in San Juan de los Planes

The chart displays monthly precipitation patterns in San Juan de los Planes, 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 Juan de los Planes, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec816200112665123112118
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Juan de los Planes

In San Juan de los Planes in December, humidity is 72%. With an average temperature of 19°C (67°F), this humidity feels like a warm, damp blanket enveloping you, making outdoor activities a bit more challenging but also giving the air a refreshing quality that's invigorating for short excursions.

December Average Humidity in San Juan de los Planes

This chart illustrates the average monthly humidity levels in San Juan de los Planes, 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 Juan de los Planes is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec69%66%64%64%66%67%72%73%74%75%73%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Juan de los Planes

In San Juan de los Planes in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Juan de los Planes, you can refer to this Hourly UV Index in San Juan de los Planes.

Maximum UV Index Levels in San Juan de los Planes for December

The chart shows the monthly maximum UV Index (UVI) for San Juan de los Planes 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 Juan de los Planes typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111313131212121086
Data source: San Juan de los Planes 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 Juan de los Planes Compares to Other Months

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

This table compares monthly weather conditions in San Juan de los Planes, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)8 mm (0.3 inches)69%high
February Weather18°C (65°F)16 mm (0.6 inches)66%very high
March Weather20°C (68°F)2 mm (0.1 inches)64%extreme
April Weather23°C (73°F)0 mm (0.0 inches)64%extreme
May Weather25°C (77°F)0 mm (0.0 inches)66%extreme
June Weather28°C (82°F)11 mm (0.4 inches)67%extreme
July Weather29°C (85°F)26 mm (1.0 inches)72%extreme
August Weather29°C (85°F)65 mm (2.5 inches)73%extreme
September Weather28°C (82°F)123 mm (4.9 inches)74%extreme
October Weather27°C (80°F)11 mm (0.4 inches)75%very high
November Weather23°C (74°F)21 mm (0.8 inches)73%very high
December Weather19°C (67°F)18 mm (0.7 inches)72%high

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