October Weather in Rialma, Brazil

Last updated: August 22, 2025

In October, the average temperature in Rialma, Brazil is a warm 27°C (80°F). Expect temperatures to range from a pleasant 18°C (64°F) to a sizzling 39°C (102°F). With an average precipitation of 88 mm (3.5 in) spread over 11 days, and a relatively low humidity level of 26%, the climate is typically dry and inviting!

October Temperature in Rialma

In October in Rialma, the average temperature is 27°C (80°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop as low as 18°C (64°F). It's a great time to visit for those who enjoy warm weather, but be prepared for hot days and cooler evenings.

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

The chart illustrates October temperature patterns in Rialma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rialma, October typically has an average temperature of 27°C (80°F), with highs reaching up to 39°C (102°F) and lows dropping to around 18°C (64°F).

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

October Precipitation in Rialma

In Rialma in October, the total precipitation amount is 88 mm (3.5 in) spread over 11 days.

October Precipitation Trends in Rialma

The chart displays monthly precipitation patterns in Rialma, 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 Rialma, October typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 11 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 Rialma

In Rialma in October humidity is 26%. With an average temperature of 27°C (80°F), this humidity feels like a comfortable embrace, making it perfect for leisurely strolls and outdoor adventures without the discomfort of excessive heat.

October Average Humidity in Rialma

This chart illustrates the average monthly humidity levels in Rialma, 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 Rialma is approximately 26%, 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 Rialma

In Rialma in October, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Rialma.

Maximum UV Index Levels in Rialma for October

The chart shows the monthly maximum UV Index (UVI) for Rialma 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 Rialma typically reaches 15, which falls under the extreme exposure category.

Data source: Rialma 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 Rialma Compares to Other Months

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

This table compares monthly weather conditions in Rialma, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	130 mm (5.1 inches)	86%	extreme
February Weather	24°C (76°F)	184 mm (7.2 inches)	89%	extreme
March Weather	25°C (77°F)	133 mm (5.3 inches)	90%	extreme
April Weather	25°C (77°F)	66 mm (2.6 inches)	82%	extreme
May Weather	24°C (75°F)	9 mm (0.3 inches)	65%	extreme
June Weather	23°C (73°F)	0 mm (0.0 inches)	59%	very high
July Weather	22°C (72°F)	0 mm (0.0 inches)	53%	very high
August Weather	25°C (77°F)	0 mm (0.0 inches)	44%	extreme
September Weather	27°C (81°F)	4 mm (0.1 inches)	34%	extreme
October Weather	27°C (80°F)	88 mm (3.5 inches)	26%	extreme
November Weather	25°C (77°F)	166 mm (6.5 inches)	50%	extreme
December Weather	25°C (77°F)	234 mm (9.2 inches)	70%	extreme