October Weather in Rio Grande, Brazil

Last updated: August 22, 2025

In October, the average temperature in Rio Grande, Brazil hovers around 18°C (65°F). Conditions can vary, with a minimum of 13°C (55°F) and a maximum reaching up to 25°C (78°F). Expect a fair amount of precipitation, totaling 131 mm (5.2 in) over approximately 12 days, contributing to an average humidity of 84%.

October Temperature in Rio Grande

In October in Rio Grande, the average temperature is 18°C (65°F). Maximums can reach 25°C (78°F), while minimums can dip as low as 13°C (55°F). This pleasant climate makes it an ideal time for exploring and enjoying outdoor activities in Rio Grande.

October Weather in Rio Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Rio Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Grande, October typically has an average temperature of 18°C (65°F), with highs reaching up to 25°C (78°F) and lows dropping to around 13°C (55°F).

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

October Precipitation in Rio Grande

In Rio Grande in October, the precipitation amount is 131 mm (5.2 in) spread over 12 days.

October Precipitation Trends in Rio Grande

The chart displays monthly precipitation patterns in Rio Grande, 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 Rio Grande, October typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 12 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 Rio Grande

In Rio Grande in October, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

October Average Humidity in Rio Grande

This chart illustrates the average monthly humidity levels in Rio Grande, 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 Rio Grande is approximately 84%, 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 Rio Grande

In Rio Grande in October, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Rio Grande.

Maximum UV Index Levels in Rio Grande for October

The chart shows the monthly maximum UV Index (UVI) for Rio Grande 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 Rio Grande typically reaches 11, which falls under the extreme exposure category.

Data source: Rio Grande 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 Rio Grande Compares to Other Months

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

This table compares monthly weather conditions in Rio Grande, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	85 mm (3.3 inches)	79%	extreme
February Weather	24°C (75°F)	75 mm (2.9 inches)	81%	extreme
March Weather	23°C (73°F)	87 mm (3.4 inches)	81%	extreme
April Weather	21°C (70°F)	65 mm (2.6 inches)	80%	very high
May Weather	18°C (64°F)	97 mm (3.8 inches)	82%	moderate
June Weather	15°C (60°F)	99 mm (3.9 inches)	81%	moderate
July Weather	14°C (57°F)	111 mm (4.4 inches)	78%	moderate
August Weather	14°C (58°F)	100 mm (3.9 inches)	80%	high
September Weather	16°C (61°F)	144 mm (5.7 inches)	84%	very high
October Weather	18°C (65°F)	131 mm (5.2 inches)	84%	extreme
November Weather	20°C (68°F)	78 mm (3.1 inches)	82%	extreme
December Weather	22°C (71°F)	77 mm (3.0 inches)	82%	extreme