December Weather in Ribera la Union (Castano), Mexico

Last updated: August 27, 2025

In Ribera la Union (Castano), Mexico, the average temperature in December is a pleasant 22°C (73°F). However, temperatures can vary significantly, with minimums dipping to 11°C (52°F) and maximums soaring to 33°C (92°F). Visitors should also note that precipitation is minimal, averaging just 10 mm (0.4 in) over 0 days, while the air maintains a high level of humidity at 88%.

December Temperature in Ribera la Union (Castano)

In December in Ribera la Union (Castano), the average temperature is 22°C (73°F). Maximums can reach 33°C (92°F), while minimums can dip as low as 11°C (52°F). This pleasant climate makes Ribera la Union (Castano) an ideal destination for travelers seeking a comfortable getaway.

December Weather in Ribera la Union (Castano): Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ribera la Union (Castano), showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ribera la Union (Castano), December typically has an average temperature of 22°C (73°F), with highs reaching up to 33°C (92°F) and lows dropping to around 11°C (52°F).

Data source: Temperature data for Ribera la Union (Castano) generated using information from the Copernicus Climate Change Service.

December Precipitation in Ribera la Union (Castano)

In Ribera la Union (Castano) in December, the precipitation amount is 10 mm (0.4 in) during a total of 0 days.

December Precipitation Trends in Ribera la Union (Castano)

The chart displays monthly precipitation patterns in Ribera la Union (Castano), 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 Ribera la Union (Castano), December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 0 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Ribera la Union (Castano)

In Ribera la Union (Castano) 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 Ribera la Union (Castano)

This chart illustrates the average monthly humidity levels in Ribera la Union (Castano), 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 Ribera la Union (Castano) is approximately 88%, 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 Ribera la Union (Castano)

In Ribera la Union (Castano) in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Ribera la Union (Castano).

Maximum UV Index Levels in Ribera la Union (Castano) for December

The chart shows the monthly maximum UV Index (UVI) for Ribera la Union (Castano) 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 Ribera la Union (Castano) typically reaches 9, which falls under the very high exposure category.

Data source: Ribera la Union (Castano) 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 Ribera la Union (Castano) Compares to Other Months

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

This table compares monthly weather conditions in Ribera la Union (Castano), showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	4 mm (0.2 inches)	83%	very high
February Weather	24°C (75°F)	2 mm (0.1 inches)	76%	extreme
March Weather	25°C (78°F)	4 mm (0.1 inches)	66%	extreme
April Weather	27°C (81°F)	19 mm (0.7 inches)	59%	extreme
May Weather	27°C (81°F)	94 mm (3.7 inches)	64%	extreme
June Weather	26°C (78°F)	193 mm (7.6 inches)	69%	extreme
July Weather	26°C (79°F)	113 mm (4.5 inches)	82%	extreme
August Weather	26°C (79°F)	163 mm (6.4 inches)	87%	extreme
September Weather	25°C (78°F)	210 mm (8.3 inches)	87%	extreme
October Weather	25°C (77°F)	172 mm (6.8 inches)	88%	extreme
November Weather	23°C (74°F)	18 mm (0.7 inches)	88%	very high
December Weather	22°C (73°F)	10 mm (0.4 inches)	88%	very high