October Weather in Serro, Brazil

Last updated: August 22, 2025

In October, the average temperature in Serro, Brazil is a pleasant 21°C (71°F). Expect a minimum of 13°C (56°F) and a warm maximum of 34°C (94°F) during the day. While you enjoy the weather, be prepared for some rain, as precipitation amounts to 139 mm (5.5 in) over approximately 16 days. The average humidity sits comfortably at 47%, making for an enjoyable climate overall.

October Temperature in Serro

In October in Serro, the average temperature is 21°C (71°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 13°C (56°F). This mild climate makes Serro an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates October temperature patterns in Serro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Serro, October typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (56°F).

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

October Precipitation in Serro

In Serro in October, the total precipitation amount is 139 mm (5.5 in) spread over 16 days.

October Precipitation Trends in Serro

The chart displays monthly precipitation patterns in Serro, 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 Serro, October typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 16 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 Serro

In Serro in October humidity is 47%. With an average temperature of 21°C (71°F), this humidity feels like a comfortable embrace, making it ideal for exploring the sights without feeling overly sticky or oppressive.

October Average Humidity in Serro

This chart illustrates the average monthly humidity levels in Serro, 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 Serro is approximately 47%, 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 Serro

In Serro 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 Serro, you can check here.

Maximum UV Index Levels in Serro for October

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

Data source: Serro 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 Serro Compares to Other Months

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

This table compares monthly weather conditions in Serro, 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)	130 mm (5.1 inches)	80%	extreme
February Weather	21°C (71°F)	268 mm (10.5 inches)	84%	extreme
March Weather	21°C (70°F)	161 mm (6.3 inches)	86%	extreme
April Weather	20°C (68°F)	80 mm (3.2 inches)	83%	extreme
May Weather	18°C (65°F)	47 mm (1.8 inches)	78%	very high
June Weather	17°C (63°F)	12 mm (0.5 inches)	77%	very high
July Weather	16°C (62°F)	8 mm (0.3 inches)	74%	very high
August Weather	17°C (63°F)	18 mm (0.7 inches)	69%	extreme
September Weather	20°C (68°F)	32 mm (1.2 inches)	61%	extreme
October Weather	21°C (71°F)	139 mm (5.5 inches)	47%	extreme
November Weather	21°C (70°F)	207 mm (8.2 inches)	54%	extreme
December Weather	21°C (71°F)	274 mm (10.8 inches)	60%	extreme