December Weather in Santa Teresa, Mexico

Last updated: August 27, 2025

In Santa Teresa, Mexico, the average temperature in December hovers around 14°C (58°F). Expect a range where the minimum dips to -1°C (30°F) and the maximum peaks at 27°C (82°F). With an average humidity of 81%, the air can feel quite damp, but don't worry—precipitation is minimal, with only 4 mm (0.2 in) expected over 0 days. Enjoy the mild climate!

December Temperature in Santa Teresa

In December in Santa Teresa, the average temperature is 14°C (58°F). Maximum temperatures can reach 27°C (82°F), while minimums can drop as low as -1°C (30°F). Be prepared for a range of weather conditions to make the most of your travels.

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 14°C (58°F), with highs reaching up to 27°C (82°F) and lows dropping to around -1°C (30°F).

Data source: Temperature data for Santa Teresa generated using information from the Copernicus Climate Change Service.

December Precipitation in Santa Teresa

In Santa Teresa in December, the precipitation amount is 4 mm (0.2 in) over the course of 0 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 4 mm (0.2 inches) of precipitation spread over approximately 0 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Santa Teresa

In Santa Teresa in December, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

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 81%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	6 mm (0.2 inches)	74%	very high
February Weather	16°C (62°F)	7 mm (0.3 inches)	65%	extreme
March Weather	19°C (66°F)	11 mm (0.4 inches)	58%	extreme
April Weather	21°C (70°F)	12 mm (0.5 inches)	58%	extreme
May Weather	22°C (71°F)	42 mm (1.7 inches)	67%	extreme
June Weather	20°C (68°F)	149 mm (5.9 inches)	76%	extreme
July Weather	19°C (67°F)	108 mm (4.3 inches)	67%	extreme
August Weather	19°C (67°F)	99 mm (3.9 inches)	68%	extreme
September Weather	18°C (65°F)	164 mm (6.4 inches)	81%	extreme
October Weather	18°C (64°F)	63 mm (2.5 inches)	83%	extreme
November Weather	16°C (60°F)	19 mm (0.8 inches)	84%	very high
December Weather	14°C (58°F)	4 mm (0.2 inches)	81%	very high