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December Weather in San Joaquin, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Joaquin, Mexico hovers around 14°C (58°F), with extremes ranging from a chilly -1°C (30°F) to a pleasant 28°C (83°F). Visitors can expect a slight drizzle, with only 4 mm (0.2 in) of precipitation spread over 0 days. Humidity remains high at an average of 91%, adding to the atmospheric charm of the region.

December Temperature in San Joaquin

In December in San Joaquin, the average temperature is 14°C (58°F). Maximums can reach 28°C (83°F), and minimums can be as low as -1°C (30°F). Therefore, travelers should be prepared for a diverse range of weather conditions.

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

The chart illustrates December temperature patterns in San Joaquin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Joaquin, December typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec576266707268676766646058
Data source: Temperature data for San Joaquin 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 Joaquin

In San Joaquin in December, the precipitation amount is 4 mm (0.2 in) over the course of 0 days.

December Precipitation Trends in San Joaquin

The chart displays monthly precipitation patterns in San Joaquin, 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 Joaquin, December typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec771318361279610213167204
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Joaquin

In San Joaquin in December humidity is 91%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit uncomfortable as sweat mingles with the cool air, creating an uneasy atmosphere for exploration.

December Average Humidity in San Joaquin

This chart illustrates the average monthly humidity levels in San Joaquin, 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 Joaquin 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 San Joaquin

In San Joaquin 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 San Joaquin.

Maximum UV Index Levels in San Joaquin for December

The chart shows the monthly maximum UV Index (UVI) for San Joaquin 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 Joaquin typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121415151414141412108
Data source: San Joaquin 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 Joaquin Compares to Other Months

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

This table compares monthly weather conditions in San Joaquin, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)7 mm (0.3 inches)88%very high
February Weather17°C (62°F)6 mm (0.3 inches)86%extreme
March Weather19°C (66°F)13 mm (0.5 inches)83%extreme
April Weather21°C (70°F)18 mm (0.7 inches)80%extreme
May Weather22°C (72°F)36 mm (1.4 inches)82%extreme
June Weather20°C (69°F)127 mm (5.0 inches)79%extreme
July Weather19°C (67°F)96 mm (3.8 inches)72%extreme
August Weather20°C (68°F)102 mm (4.0 inches)74%extreme
September Weather19°C (66°F)131 mm (5.2 inches)84%extreme
October Weather18°C (64°F)67 mm (2.6 inches)92%extreme
November Weather16°C (61°F)20 mm (0.8 inches)91%very high
December Weather14°C (58°F)4 mm (0.2 inches)91%very high

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