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December Weather in San Patricio, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Patricio, Mexico is a pleasant 25°C (77°F), with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 30°C (87°F). Expect minimal rainfall, with only 6 mm (0.2 in) of precipitation over 0 days. The air is fairly humid, boasting an average of 76% humidity, making for a comfortable atmosphere to enjoy your time outdoors!

December Temperature in San Patricio

In December in San Patricio, the average temperature is a pleasant 25°C (77°F). Maximums can reach up to 30°C (87°F), while minimums can drop to as low as 18°C (64°F). This makes San Patricio an ideal destination for travelers seeking mild and enjoyable weather.

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

The chart illustrates December temperature patterns in San Patricio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Patricio, December typically has an average temperature of 25°C (77°F), with highs reaching up to 30°C (87°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec757575757781838282827977
Data source: Temperature data for San Patricio 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 Patricio

In San Patricio in December, the total precipitation amount is 6 mm (0.2 in), spread over a duration of 0 days.

December Precipitation Trends in San Patricio

The chart displays monthly precipitation patterns in San Patricio, 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 Patricio, December typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec91700111768267235168306
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Patricio

In San Patricio in December, humidity is 76%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making traveling feel muggy and requiring frequent breaks to stay refreshed.

December Average Humidity in San Patricio

This chart illustrates the average monthly humidity levels in San Patricio, 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 Patricio is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%65%59%60%67%80%81%83%83%80%77%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Patricio

In San Patricio 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 Patricio.

Maximum UV Index Levels in San Patricio for December

The chart shows the monthly maximum UV Index (UVI) for San Patricio 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 Patricio typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec910131313141212131297
Data source: San Patricio 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 Patricio Compares to Other Months

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

This table compares monthly weather conditions in San Patricio, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)9 mm (0.3 inches)70%very high
February Weather24°C (75°F)16 mm (0.6 inches)65%very high
March Weather24°C (75°F)0 mm (0.0 inches)59%extreme
April Weather24°C (75°F)0 mm (0.0 inches)60%extreme
May Weather25°C (77°F)1 mm (0.0 inches)67%extreme
June Weather27°C (81°F)116 mm (4.6 inches)80%extreme
July Weather28°C (83°F)68 mm (2.7 inches)81%extreme
August Weather28°C (83°F)267 mm (10.5 inches)83%extreme
September Weather28°C (82°F)235 mm (9.2 inches)83%extreme
October Weather28°C (82°F)168 mm (6.6 inches)80%extreme
November Weather26°C (80°F)30 mm (1.2 inches)77%very high
December Weather25°C (77°F)6 mm (0.2 inches)76%high

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