October Weather in Mariana, Brazil

Last updated: August 22, 2025

In October, the average temperature in Mariana, Brazil is a pleasant 21°C (69°F). Expect a minimum chill of 12°C (54°F) and the potential for warm afternoons reaching up to 34°C (93°F). However, be prepared for the wet season, as 192 mm (7.6 in) of precipitation can be expected over about 20 days, accompanied by an average humidity of 48%.

October Temperature in Mariana

In October in Mariana, the average temperature is 21°C (69°F), with maximums reaching 34°C (93°F) and minimums dropping to as low as 12°C (54°F). It's a great time to visit for those who enjoy mild weather with a mix of warm and cooler days!

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

The chart illustrates October temperature patterns in Mariana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariana, October typically has an average temperature of 21°C (69°F), with highs reaching up to 34°C (93°F) and lows dropping to around 12°C (54°F).

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

October Precipitation in Mariana

In Mariana in October, the total precipitation amount is 192 mm (7.6 in) over a span of 20 days.

October Precipitation Trends in Mariana

The chart displays monthly precipitation patterns in Mariana, 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 Mariana, October typically receives around 192 mm (7.6 inches) of precipitation spread over approximately 20 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 Mariana

In Mariana in October, humidity is 48%. With an average temperature of 21°C (69°F), this humidity feels like a comfortable embrace, making it an inviting time for traveling as you can explore the sights without feeling sticky or overheated.

October Average Humidity in Mariana

This chart illustrates the average monthly humidity levels in Mariana, 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 Mariana is approximately 48%, 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 Mariana

In Mariana in October, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Mariana, you can check here.

Maximum UV Index Levels in Mariana for October

The chart shows the monthly maximum UV Index (UVI) for Mariana 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 Mariana typically reaches 14, which falls under the extreme exposure category.

Data source: Mariana 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 Mariana Compares to Other Months

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

This table compares monthly weather conditions in Mariana, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	193 mm (7.6 inches)	83%	extreme
February Weather	22°C (71°F)	281 mm (11.1 inches)	85%	extreme
March Weather	22°C (71°F)	190 mm (7.5 inches)	87%	extreme
April Weather	20°C (68°F)	80 mm (3.1 inches)	86%	extreme
May Weather	18°C (64°F)	53 mm (2.1 inches)	82%	very high
June Weather	17°C (63°F)	15 mm (0.6 inches)	82%	high
July Weather	16°C (61°F)	7 mm (0.3 inches)	77%	very high
August Weather	17°C (62°F)	35 mm (1.4 inches)	72%	extreme
September Weather	20°C (68°F)	55 mm (2.1 inches)	63%	extreme
October Weather	21°C (69°F)	192 mm (7.6 inches)	48%	extreme
November Weather	20°C (69°F)	256 mm (10.1 inches)	61%	extreme
December Weather	21°C (71°F)	277 mm (10.9 inches)	68%	extreme