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December Weather in Santa Teresa, Mexico

Last updated: August 27, 2025

In December, the average temperature in Santa Teresa, Mexico reaches a pleasant 22°C (73°F). Expect a range where the minimum temperature can drop to 12°C (53°F) and the maximum can soar up to 34°C (93°F). During this time, precipitation averages around 40 mm (1.6 in) spread over 7 days, while humidity levels hover at a high 88%. 🏖️

December Temperature in Santa Teresa

In December in Santa Teresa, the average temperature is 22°C (73°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 12°C (53°F). This makes it an ideal time for travelers seeking pleasant weather and outdoor activities.

December Weather in Santa Teresa: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santa Teresa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Teresa, December typically has an average temperature of 22°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec727478828582818181797572
Data source: Temperature data for Santa Teresa 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 Santa Teresa

In Santa Teresa in December, the precipitation amount is 40 mm (1.6 in) over a span of 7 days.

December Precipitation Trends in Santa Teresa

The chart displays monthly precipitation patterns in Santa Teresa, 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 Santa Teresa, December typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec474128369835226636238927213340
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Teresa

In Santa Teresa in December humidity is 88%. With an average temperature of 22°C (73°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor adventures a sweaty endeavor and prompting frequent breaks for hydration and shade.

December Average Humidity in Santa Teresa

This chart illustrates the average monthly humidity levels in Santa Teresa, 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 Santa Teresa is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Teresa

In Santa Teresa 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 Santa Teresa.

Maximum UV Index Levels in Santa Teresa for December

The chart shows the monthly maximum UV Index (UVI) for Santa Teresa 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 Santa Teresa typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911121313131412131298
Data source: Santa Teresa 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 Santa Teresa Compares to Other Months

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

This table compares monthly weather conditions in Santa Teresa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)47 mm (1.8 inches)84%very high
February Weather23°C (74°F)41 mm (1.6 inches)80%extreme
March Weather25°C (78°F)28 mm (1.1 inches)73%extreme
April Weather28°C (83°F)35 mm (1.4 inches)67%extreme
May Weather29°C (85°F)98 mm (3.9 inches)72%extreme
June Weather28°C (83°F)352 mm (13.8 inches)73%extreme
July Weather27°C (82°F)266 mm (10.5 inches)76%extreme
August Weather27°C (81°F)362 mm (14.3 inches)80%extreme
September Weather27°C (81°F)389 mm (15.3 inches)84%extreme
October Weather26°C (79°F)272 mm (10.7 inches)89%extreme
November Weather24°C (75°F)133 mm (5.2 inches)88%very high
December Weather22°C (73°F)40 mm (1.6 inches)88%very high

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