December Weather in Arroyos, Mexico

Last updated: August 26, 2025

In December, the average temperature in Arroyos, Mexico hovers around 12°C (55°F), with a minimum dip to -4°C (26°F) and a maximum rise to 26°C (79°F). Expect a light precipitation of about 8 mm (0.3 in) over the course of just 1 day, while the average humidity remains relatively high at 81%.

December Temperature in Arroyos

In December, in Arroyos, the average temperature is 12°C (55°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -4°C (26°F). This range makes Arroyos an ideal destination for travelers seeking a mix of mild days and cooler evenings.

December Weather in Arroyos: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Arroyos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroyos, December typically has an average temperature of 12°C (55°F), with highs reaching up to 26°C (79°F) and lows dropping to around -4°C (26°F).

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

December Precipitation in Arroyos

In Arroyos in December, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

December Precipitation Trends in Arroyos

The chart displays monthly precipitation patterns in Arroyos, 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 Arroyos, December typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 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 Arroyos

In Arroyos in December humidity is 81%. With an average temperature of 12°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel heavier and encouraging frequent breaks to hydrate and cool off while traveling.

December Average Humidity in Arroyos

This chart illustrates the average monthly humidity levels in Arroyos, 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 Arroyos 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 Arroyos

In Arroyos 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 Arroyos.

Maximum UV Index Levels in Arroyos for December

The chart shows the monthly maximum UV Index (UVI) for Arroyos 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 Arroyos typically reaches 8, which falls under the very high exposure category.

Data source: Arroyos 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 Arroyos Compares to Other Months

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

This table compares monthly weather conditions in Arroyos, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	9 mm (0.3 inches)	74%	very high
February Weather	15°C (59°F)	11 mm (0.4 inches)	65%	extreme
March Weather	17°C (63°F)	14 mm (0.5 inches)	58%	extreme
April Weather	19°C (67°F)	16 mm (0.6 inches)	58%	extreme
May Weather	21°C (70°F)	55 mm (2.2 inches)	67%	extreme
June Weather	20°C (68°F)	136 mm (5.3 inches)	76%	extreme
July Weather	19°C (66°F)	103 mm (4.0 inches)	67%	extreme
August Weather	19°C (67°F)	76 mm (3.0 inches)	68%	extreme
September Weather	18°C (64°F)	123 mm (4.8 inches)	81%	extreme
October Weather	17°C (62°F)	65 mm (2.6 inches)	83%	extreme
November Weather	14°C (58°F)	21 mm (0.8 inches)	84%	very high
December Weather	12°C (55°F)	8 mm (0.3 inches)	81%	very high