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December Weather in San Francisco Chimalpa, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Francisco Chimalpa, Mexico hovers around 12°C (55°F). Temperatures can dip to a chilly -1°C (30°F) at night, while daytime highs can reach a pleasant 24°C (76°F). Expect a precipitation amount of 7 mm (0.3 in) over the course of just 1 day, and be prepared for a notably high average humidity of 88%.

December Temperature in San Francisco Chimalpa

In December in San Francisco Chimalpa, the average temperature is 12°C (55°F), with maximums reaching 24°C (76°F) and minimums dropping as low as -1°C (30°F). This range makes it essential for travelers to pack layers to ensure comfort during their visit.

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

The chart illustrates December temperature patterns in San Francisco Chimalpa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Francisco Chimalpa, December typically has an average temperature of 12°C (55°F), with highs reaching up to 24°C (76°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec545761636563616161595654
Data source: Temperature data for San Francisco Chimalpa 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 Francisco Chimalpa

In San Francisco Chimalpa in December, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

December Precipitation Trends in San Francisco Chimalpa

The chart displays monthly precipitation patterns in San Francisco Chimalpa, 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 Francisco Chimalpa, December typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec1415263954160161186204103317
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Francisco Chimalpa

In San Francisco Chimalpa in December humidity is 88%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration more challenging and requiring extra layers for comfort.

December Average Humidity in San Francisco Chimalpa

This chart illustrates the average monthly humidity levels in San Francisco Chimalpa, 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 Francisco Chimalpa is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Francisco Chimalpa

In San Francisco Chimalpa 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 Francisco Chimalpa.

Maximum UV Index Levels in San Francisco Chimalpa for December

The chart shows the monthly maximum UV Index (UVI) for San Francisco Chimalpa 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 Francisco Chimalpa typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151414131412108
Data source: San Francisco Chimalpa 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 Francisco Chimalpa Compares to Other Months

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

This table compares monthly weather conditions in San Francisco Chimalpa, 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)84%very high
February Weather14°C (58°F)15 mm (0.6 inches)78%extreme
March Weather16°C (61°F)26 mm (1.0 inches)75%extreme
April Weather17°C (63°F)39 mm (1.5 inches)70%extreme
May Weather18°C (65°F)54 mm (2.1 inches)77%extreme
June Weather17°C (64°F)160 mm (6.3 inches)76%extreme
July Weather16°C (62°F)161 mm (6.3 inches)68%extreme
August Weather16°C (61°F)186 mm (7.3 inches)70%extreme
September Weather16°C (61°F)204 mm (8.0 inches)82%extreme
October Weather15°C (59°F)103 mm (4.0 inches)91%extreme
November Weather13°C (56°F)31 mm (1.2 inches)89%very high
December Weather12°C (55°F)7 mm (0.3 inches)88%very high

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