December Weather in San Juanito, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Juanito, Mexico hovers around 6°C (43°F). Temperatures can swing from a chilly -9°C (17°F) to a mild 20°C (69°F). Visitors can expect 24 mm (0.9 in) of precipitation over 4 days, contributing to an average humidity of 80%.

December Temperature in San Juanito

In December in San Juanito, the average temperature is 6°C (43°F), with maximums reaching up to 20°C (69°F) and minimums dropping as low as -9°C (17°F). This wide range in temperature suggests that travelers should prepare for both warm and cold conditions during their visit.

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

The chart illustrates December temperature patterns in San Juanito, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juanito, December typically has an average temperature of 6°C (43°F), with highs reaching up to 20°C (69°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec424449556166636360564943
Data source: Temperature data for San Juanito 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 Juanito

In San Juanito in December, the precipitation amount is 24 mm (0.9 in) over a period of 4 days.

December Precipitation Trends in San Juanito

The chart displays monthly precipitation patterns in San Juanito, 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 Juanito, December typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec1727256958231212111512124
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Juanito

In San Juanito in December humidity is 80%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor exploration quite uncomfortable, often leaving travelers feeling clammy and cold despite the relatively mild temperature.

December Average Humidity in San Juanito

This chart illustrates the average monthly humidity levels in San Juanito, 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 Juanito is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Juanito

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

Maximum UV Index Levels in San Juanito for December

The chart shows the monthly maximum UV Index (UVI) for San Juanito 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 Juanito typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111414141413131186
Data source: San Juanito 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 Juanito Compares to Other Months

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

This table compares monthly weather conditions in San Juanito, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)17 mm (0.7 inches)74%high
February Weather7°C (44°F)27 mm (1.1 inches)67%very high
March Weather10°C (49°F)25 mm (1.0 inches)60%extreme
April Weather13°C (55°F)6 mm (0.2 inches)51%extreme
May Weather16°C (61°F)9 mm (0.4 inches)47%extreme
June Weather19°C (67°F)58 mm (2.3 inches)50%extreme
July Weather17°C (63°F)231 mm (9.1 inches)70%extreme
August Weather17°C (63°F)212 mm (8.4 inches)81%extreme
September Weather16°C (60°F)111 mm (4.4 inches)82%extreme
October Weather13°C (56°F)51 mm (2.0 inches)78%extreme
November Weather10°C (50°F)21 mm (0.8 inches)78%very high
December Weather6°C (43°F)24 mm (0.9 inches)80%high

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