January Weather in El Rosario, Mexico

Last updated: August 27, 2025

In El Rosario, Mexico, the average temperature for January hovers around 18°C (65°F). Expect a minimum of 3°C (37°F) and a pleasant maximum of 32°C (90°F). During this month, rainfall measures about 13 mm (0.5 in), typically over 2 days. You'll also find the average humidity sitting at 64%, creating a comfortable atmosphere for your travels!

January Temperature in El Rosario

In January in El Rosario, the average temperature is 18°C (65°F). Maximum temperatures can reach up to 32°C (90°F), while the minimum can drop as low as 3°C (37°F). This varying climate makes it essential for travelers to pack for both warm and cool conditions.

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 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (37°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 2 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 2 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 64%. With an average temperature of 18°C (65°F), this humidity feels like a gentle embrace, perfect for leisurely strolls yet slightly sticky, reminding travelers to stay hydrated and take breaks in the shade.

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 64%, 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 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 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 8, 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	18°C (65°F)	13 mm (0.5 inches)	64%	very high
February Weather	19°C (66°F)	23 mm (0.9 inches)	57%	extreme
March Weather	21°C (70°F)	2 mm (0.1 inches)	46%	extreme
April Weather	22°C (72°F)	1 mm (0.0 inches)	42%	extreme
May Weather	23°C (74°F)	11 mm (0.4 inches)	51%	extreme
June Weather	24°C (75°F)	110 mm (4.3 inches)	74%	extreme
July Weather	23°C (73°F)	218 mm (8.6 inches)	79%	extreme
August Weather	23°C (73°F)	230 mm (9.0 inches)	81%	extreme
September Weather	22°C (72°F)	259 mm (10.2 inches)	84%	extreme
October Weather	22°C (72°F)	101 mm (4.0 inches)	75%	extreme
November Weather	20°C (69°F)	19 mm (0.7 inches)	71%	very high
December Weather	18°C (65°F)	17 mm (0.7 inches)	74%	high