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December Weather in San Jose del Llano, Mexico

Last updated: August 27, 2025

In San Jose del Llano, Mexico, the average temperature in December hovers around 13°C (55°F), with fluctuations ranging from a chilly -5°C (24°F) to a warm 28°C (83°F). Expect a modest precipitation of 14 mm (0.6 in) over the course of 2 days, while the air carries a noticeable average humidity of 87%.

December Temperature in San Jose del Llano

In December in San Jose del Llano, the average temperature is 13°C (55°F). Maximums can reach 28°C (83°F), and minimums can drop as low as -5°C (24°F). Pack accordingly to enjoy a range of weather during your travels!

December Weather in San Jose del Llano: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Jose del Llano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose del Llano, December typically has an average temperature of 13°C (55°F), with highs reaching up to 28°C (83°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec545863676969686866645955
Data source: Temperature data for San Jose del Llano 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 Jose del Llano

In San Jose del Llano in December, the precipitation amount is 14 mm (0.6 in) over a period of 2 days.

December Precipitation Trends in San Jose del Llano

The chart displays monthly precipitation patterns in San Jose del Llano, 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 Jose del Llano, December typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec14121833809910260111651714
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Jose del Llano

In San Jose del Llano in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.

December Average Humidity in San Jose del Llano

This chart illustrates the average monthly humidity levels in San Jose del Llano, 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 Jose del Llano is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Jose del Llano

In San Jose del Llano 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 San Jose del Llano.

Maximum UV Index Levels in San Jose del Llano for December

The chart shows the monthly maximum UV Index (UVI) for San Jose del Llano 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 Jose del Llano typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414141414131297
Data source: San Jose del Llano 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 Jose del Llano Compares to Other Months

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

This table compares monthly weather conditions in San Jose del Llano, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)14 mm (0.6 inches)75%very high
February Weather15°C (58°F)12 mm (0.5 inches)69%very high
March Weather17°C (63°F)18 mm (0.7 inches)65%extreme
April Weather19°C (67°F)33 mm (1.3 inches)64%extreme
May Weather21°C (70°F)80 mm (3.2 inches)75%extreme
June Weather21°C (69°F)99 mm (3.9 inches)78%extreme
July Weather20°C (68°F)102 mm (4.0 inches)67%extreme
August Weather20°C (69°F)59 mm (2.3 inches)64%extreme
September Weather19°C (66°F)111 mm (4.4 inches)81%extreme
October Weather18°C (64°F)65 mm (2.5 inches)85%extreme
November Weather15°C (59°F)17 mm (0.7 inches)87%very high
December Weather13°C (55°F)14 mm (0.6 inches)87%high

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