January Weather in El Rosario, Mexico

Last updated: August 27, 2025

In January, the average temperature in El Rosario, Mexico hovers around 11°C (51°F), making it a cool month overall. Expect temperatures to vary, with a minimum of -2°C (29°F) and a maximum reaching 24°C (75°F). During this time, precipitation averages 13 mm (0.5 in) over about 3 days, while the air maintains a relatively high humidity level of 84%.

January Temperature in El Rosario

In January in El Rosario, the average temperature is 11°C (51°F). The maximum can reach 24°C (75°F), and the minimum can be as low as -2°C (29°F). Be prepared for a variety of weather conditions, making it essential to pack layers for your trip.

January Weather in El Rosario: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in El Rosario, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Rosario, January typically has an average temperature of 11°C (51°F), with highs reaching up to 24°C (75°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in El Rosario

In El Rosario in January, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

January Precipitation Trends in El Rosario

The chart displays monthly precipitation patterns in El Rosario, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In El Rosario, January typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

January Humidity in El Rosario

In El Rosario in January humidity is 84%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill enveloping you, making it seem much colder than it actually is, and can dampen your spirits while traveling.

January Average Humidity in El Rosario

This chart illustrates the average monthly humidity levels in El Rosario, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in El Rosario is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in El Rosario

In El Rosario in January, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in El Rosario.

Maximum UV Index Levels in El Rosario for January

The chart shows the monthly maximum UV Index (UVI) for El Rosario in January, 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 January, the maximum UV index in El Rosario typically reaches 10, which falls under the very high exposure category.

Data source: El Rosario January 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 January Weather in El Rosario Compares to Other Months

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

This table compares monthly weather conditions in El Rosario, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	13 mm (0.5 inches)	84%	very high
February Weather	13°C (55°F)	9 mm (0.4 inches)	78%	extreme
March Weather	14°C (58°F)	22 mm (0.9 inches)	75%	extreme
April Weather	16°C (60°F)	43 mm (1.7 inches)	70%	extreme
May Weather	16°C (62°F)	66 mm (2.6 inches)	77%	extreme
June Weather	15°C (60°F)	172 mm (6.8 inches)	76%	extreme
July Weather	15°C (59°F)	141 mm (5.6 inches)	68%	extreme
August Weather	15°C (59°F)	190 mm (7.5 inches)	70%	extreme
September Weather	15°C (59°F)	181 mm (7.1 inches)	82%	extreme
October Weather	14°C (57°F)	100 mm (3.9 inches)	91%	extreme
November Weather	12°C (54°F)	25 mm (1.0 inches)	89%	very high
December Weather	11°C (52°F)	5 mm (0.2 inches)	88%	very high