October Weather in Rio, United States

Last updated: June 24, 2025

In October, the average temperature in Rio, United States hovers around 27°C (80°F). Expect a minimum of 13°C (56°F) and a comfortable maximum of 31°C (88°F). This month sees about 126 mm (5.0 in) of precipitation spread over 18 days, while the average humidity remains high at 83%, creating a warm, tropical atmosphere.

October Temperature in Rio

In October, in Rio, the average temperature is 27°C (80°F). Maximums can reach 31°C (88°F), while minimums can drop to as low as 13°C (56°F). Overall, this pleasant climate makes Rio an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates October temperature patterns in Rio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio, October typically has an average temperature of 27°C (80°F), with highs reaching up to 31°C (88°F) and lows dropping to around 13°C (56°F).

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

October Precipitation in Rio

In Rio in October, the precipitation amount is 126 mm (5.0 in) spread over 18 days.

October Precipitation Trends in Rio

The chart displays monthly precipitation patterns in Rio, 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, October typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 18 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

In Rio in October, humidity is 83%. With an average temperature of 27°C (80°F), this humidity feels like a warm, steamy embrace, making traveling a bit uncomfortable as the air clings to your skin and renders even the slightest exertion more exhausting.

October Average Humidity in Rio

This chart illustrates the average monthly humidity levels in Rio, 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 is approximately 83%, 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

In Rio 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 Rio.

Maximum UV Index Levels in Rio for October

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

Data source: Rio 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 Compares to Other Months

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

This table compares monthly weather conditions in Rio, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	38 mm (1.5 inches)	83%	high
February Weather	22°C (72°F)	43 mm (1.7 inches)	80%	very high
March Weather	22°C (72°F)	31 mm (1.2 inches)	75%	very high
April Weather	24°C (76°F)	65 mm (2.6 inches)	68%	extreme
May Weather	26°C (79°F)	122 mm (4.8 inches)	65%	extreme
June Weather	27°C (81°F)	159 mm (6.3 inches)	73%	extreme
July Weather	28°C (83°F)	140 mm (5.5 inches)	77%	extreme
August Weather	28°C (83°F)	175 mm (6.9 inches)	80%	extreme
September Weather	28°C (82°F)	148 mm (5.8 inches)	83%	extreme
October Weather	27°C (80°F)	126 mm (5.0 inches)	83%	very high
November Weather	23°C (75°F)	81 mm (3.2 inches)	83%	high
December Weather	21°C (71°F)	49 mm (1.9 inches)	84%	moderate