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December Weather in San Juanico, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Juanico, Mexico hovers around 19°C (66°F), making it a pleasantly mild time of year. Expect lows of 7°C (45°F) and highs reaching up to 29°C (84°F). With an average humidity of 72%, the air can feel quite comfortable, even as 11 mm (0.4 in) of precipitation may fall over just 2 days.

December Temperature in San Juanico

In December in San Juanico, the average temperature is 19°C (66°F). Maximums can reach 29°C (84°F), while minimums can drop to as low as 7°C (45°F). This mild weather makes it an ideal time for outdoor activities and exploring the local attractions.

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

The chart illustrates December temperature patterns in San Juanico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juanico, December typically has an average temperature of 19°C (66°F), with highs reaching up to 29°C (84°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec656567707074808382777266
Data source: Temperature data for San Juanico 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 Juanico

In San Juanico in December, the precipitation amount is 11 mm (0.4 in) over the course of 2 days.

December Precipitation Trends in San Juanico

The chart displays monthly precipitation patterns in San Juanico, 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 Juanico, December typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec156130010319181111
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Juanico

In San Juanico in December, humidity is 72%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace that can make even the lightest activities feel strenuous for traveling.

December Average Humidity in San Juanico

This chart illustrates the average monthly humidity levels in San Juanico, 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 Juanico is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%61%58%61%61%63%70%75%72%72%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Juanico

In San Juanico 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 Juanico, you can refer to this Hourly UV Index in San Juanico.

Maximum UV Index Levels in San Juanico for December

The chart shows the monthly maximum UV Index (UVI) for San Juanico 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 Juanico typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810121212121212976
Data source: San Juanico 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 Juanico Compares to Other Months

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

This table compares monthly weather conditions in San Juanico, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)14 mm (0.6 inches)71%high
February Weather18°C (66°F)6 mm (0.2 inches)69%very high
March Weather19°C (67°F)13 mm (0.5 inches)61%very high
April Weather21°C (70°F)0 mm (0.0 inches)58%extreme
May Weather21°C (71°F)0 mm (0.0 inches)61%extreme
June Weather23°C (74°F)1 mm (0.0 inches)61%extreme
July Weather27°C (80°F)0 mm (0.0 inches)63%extreme
August Weather29°C (84°F)3 mm (0.1 inches)70%extreme
September Weather28°C (83°F)19 mm (0.7 inches)75%extreme
October Weather25°C (78°F)18 mm (0.7 inches)71%very high
November Weather22°C (72°F)11 mm (0.4 inches)72%high
December Weather19°C (66°F)11 mm (0.4 inches)72%high

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