October Weather in Rosario, Mexico

Last updated: August 27, 2025

In October, the average temperature in Rosario, Mexico hovers around 25°C (78°F), offering comfortable warmth. However, be prepared for a temperature range that can dip to a brisk 6°C (44°F) or soar to a sweltering 40°C (104°F). With an average humidity of 78% and 25 mm (1.0 in) of precipitation over 2 days, don’t forget to pack appropriately for the varied weather conditions!

October Temperature in Rosario

In October, in Rosario, the average temperature is 25°C (78°F). Maximum temperatures can reach 40°C (104°F), while minimum temperatures may drop as low as 6°C (44°F). It's advisable to pack accordingly to enjoy your travels comfortably in varying weather conditions.

October Weather in Rosario: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Rosario, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario, October typically has an average temperature of 25°C (78°F), with highs reaching up to 40°C (104°F) and lows dropping to around 6°C (44°F).

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

October Precipitation in Rosario

In Rosario in October, the precipitation amount is 25 mm (1.0 in) over the course of 2 days.

October Precipitation Trends in Rosario

The chart displays monthly precipitation patterns in Rosario, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Rosario, October typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 2 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Rosario

In Rosario in October humidity is 78%. With an average temperature of 25°C (78°F), this humidity feels like walking through a warm, thick blanket, making every step feel heavier and the air noticeably sticky, which can be quite challenging for traveling.

October Average Humidity in Rosario

This chart illustrates the average monthly humidity levels in Rosario, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Rosario is approximately 78%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Rosario

In Rosario in October, 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 Rosario.

Maximum UV Index Levels in Rosario for October

The chart shows the monthly maximum UV Index (UVI) for Rosario in October, 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 October, the maximum UV index in Rosario typically reaches 9, which falls under the very high exposure category.

Data source: Rosario October 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 October Weather in Rosario Compares to Other Months

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

This table compares monthly weather conditions in Rosario, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	27 mm (1.1 inches)	74%	high
February Weather	17°C (63°F)	23 mm (0.9 inches)	67%	very high
March Weather	20°C (68°F)	18 mm (0.7 inches)	60%	very high
April Weather	24°C (75°F)	1 mm (0.0 inches)	51%	extreme
May Weather	27°C (80°F)	1 mm (0.0 inches)	47%	extreme
June Weather	30°C (86°F)	33 mm (1.3 inches)	50%	extreme
July Weather	28°C (83°F)	135 mm (5.3 inches)	70%	extreme
August Weather	28°C (82°F)	124 mm (4.9 inches)	81%	extreme
September Weather	27°C (81°F)	92 mm (3.6 inches)	82%	extreme
October Weather	25°C (78°F)	25 mm (1.0 inches)	78%	very high
November Weather	21°C (70°F)	41 mm (1.6 inches)	78%	high
December Weather	17°C (62°F)	33 mm (1.3 inches)	80%	moderate