December Weather in Arroyo Seco, Mexico

Last updated: August 27, 2025

In December, the average temperature in Arroyo Seco, Mexico is a pleasant 19°C (66°F). Expect a minimum of 6°C (43°F) and a maximum of 30°C (86°F). Be prepared for light rain, with an average precipitation of 2 mm (0.1 in) spread over 1 day. The air is quite humid, averaging around 74% humidity, making it a comfortable time to explore!

December Temperature in Arroyo Seco

In December in Arroyo Seco, the average temperature is 19°C (66°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 6°C (43°F). This makes it a great time to explore Arroyo Seco, with comfortable weather for outdoor activities and sightseeing.

December Weather in Arroyo Seco: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Arroyo Seco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroyo Seco, December typically has an average temperature of 19°C (66°F), with highs reaching up to 30°C (86°F) and lows dropping to around 6°C (43°F).

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

December Precipitation in Arroyo Seco

In Arroyo Seco in December, the precipitation amount is 2 mm (0.1 in) during one day.

December Precipitation Trends in Arroyo Seco

The chart displays monthly precipitation patterns in Arroyo Seco, 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 Arroyo Seco, December typically receives around 2 mm (0.1 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 Arroyo Seco

In Arroyo Seco in December humidity is 74%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it ideal for leisurely outdoor exploration but potentially heavy for those not accustomed to tropical conditions.

December Average Humidity in Arroyo Seco

This chart illustrates the average monthly humidity levels in Arroyo Seco, 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 Arroyo Seco is approximately 74%, 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 Arroyo Seco

In Arroyo Seco 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 Arroyo Seco.

Maximum UV Index Levels in Arroyo Seco for December

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

Data source: Arroyo Seco 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 Arroyo Seco Compares to Other Months

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

This table compares monthly weather conditions in Arroyo Seco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	1 mm (0.0 inches)	70%	very high
February Weather	21°C (70°F)	3 mm (0.1 inches)	64%	extreme
March Weather	23°C (74°F)	2 mm (0.1 inches)	54%	extreme
April Weather	25°C (77°F)	0 mm (0.0 inches)	61%	extreme
May Weather	26°C (79°F)	46 mm (1.8 inches)	75%	extreme
June Weather	23°C (74°F)	247 mm (9.7 inches)	83%	extreme
July Weather	22°C (72°F)	339 mm (13.3 inches)	83%	extreme
August Weather	22°C (71°F)	410 mm (16.1 inches)	85%	extreme
September Weather	22°C (71°F)	351 mm (13.8 inches)	85%	extreme
October Weather	21°C (71°F)	191 mm (7.5 inches)	79%	extreme
November Weather	20°C (68°F)	52 mm (2.1 inches)	76%	very high
December Weather	19°C (66°F)	2 mm (0.1 inches)	74%	very high