October Weather in Altamira, Brazil

Last updated: August 22, 2025

In October, the average temperature in Altamira, Brazil is a cozy 28°C (84°F). Expect temperatures to range from a minimum of 23°C (74°F) to a maximum of 36°C (97°F). This month brings about 41 mm (1.6 in) of precipitation over 9 days, while the average humidity sits at a comfortable 46%. Perfect for planning your adventures!

October Temperature in Altamira

In October in Altamira, the average temperature is 28°C (84°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 23°C (74°F). This makes it an ideal time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates October temperature patterns in Altamira, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altamira, October typically has an average temperature of 28°C (84°F), with highs reaching up to 36°C (97°F) and lows dropping to around 23°C (74°F).

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

October Precipitation in Altamira

In Altamira in October, the precipitation amount is 41 mm (1.6 in) spread over 9 days.

October Precipitation Trends in Altamira

The chart displays monthly precipitation patterns in Altamira, 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 Altamira, October typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 9 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 Altamira

In Altamira in October, humidity is 46%. With an average temperature of 28°C (84°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls and outdoor adventures, though a bit sticky at times.

October Average Humidity in Altamira

This chart illustrates the average monthly humidity levels in Altamira, 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 Altamira is approximately 46%, 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 Altamira

In Altamira in October, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Altamira.

Maximum UV Index Levels in Altamira for October

The chart shows the monthly maximum UV Index (UVI) for Altamira 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 Altamira typically reaches 12, which falls under the extreme exposure category.

Data source: Altamira 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 Altamira Compares to Other Months

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

This table compares monthly weather conditions in Altamira, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	223 mm (8.8 inches)	85%	extreme
February Weather	26°C (79°F)	271 mm (10.7 inches)	69%	extreme
March Weather	26°C (79°F)	281 mm (11.1 inches)	70%	extreme
April Weather	26°C (79°F)	293 mm (11.5 inches)	85%	extreme
May Weather	26°C (80°F)	175 mm (6.9 inches)	90%	extreme
June Weather	27°C (80°F)	62 mm (2.5 inches)	82%	extreme
July Weather	27°C (81°F)	34 mm (1.3 inches)	66%	extreme
August Weather	28°C (83°F)	36 mm (1.4 inches)	51%	extreme
September Weather	28°C (83°F)	34 mm (1.3 inches)	47%	extreme
October Weather	28°C (84°F)	41 mm (1.6 inches)	46%	extreme
November Weather	28°C (82°F)	134 mm (5.3 inches)	46%	extreme
December Weather	27°C (80°F)	202 mm (8.0 inches)	70%	extreme