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October Weather in Porto Velho, Brazil

Last updated: August 22, 2025

In Porto Velho, Brazil, the average temperature in October hovers around 27°C (81°F), making it a pleasant time to visit. Expect a minimum temperature of 22°C (72°F), while highs can soar up to a sweltering 36°C (97°F). However, be prepared for some rain with 185 mm (7.3 in) of precipitation spread over 23 days. The air tends to be fairly dry with an average humidity of 36%, offering a comfortable climate for outdoor activities.

October Temperature in Porto Velho

In October in Porto Velho, the average temperature is 27°C (81°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 22°C (72°F). This makes Porto Velho an ideal destination for those looking to enjoy warm and pleasant weather during their travels.

October Weather in Porto Velho: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Porto Velho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto Velho, October typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec797879797979798182818079
Data source: Temperature data for Porto Velho generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Porto Velho

In Porto Velho in October, the precipitation amount is 185 mm (7.3 in) spread over 23 days.

October Precipitation Trends in Porto Velho

The chart displays monthly precipitation patterns in Porto Velho, 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 Porto Velho, October typically receives around 185 mm (7.3 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec2683693152681192733182185277372
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Porto Velho

In Porto Velho in October, humidity is 36%. With an average temperature of 27°C (81°F), this humidity feels like a comfortable and pleasant atmosphere for traveling, making it easy to explore the sights without feeling overly sticky or fatigued.

October Average Humidity in Porto Velho

This chart illustrates the average monthly humidity levels in Porto Velho, 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 Porto Velho is approximately 36%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%89%85%76%53%36%32%36%64%85%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Porto Velho

In Porto Velho 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 Porto Velho, you can check here.

Maximum UV Index Levels in Porto Velho for October

The chart shows the monthly maximum UV Index (UVI) for Porto Velho 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 Porto Velho typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151516151210101112141514
Data source: Porto Velho 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 Porto Velho Compares to Other Months

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

This table compares monthly weather conditions in Porto Velho, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)268 mm (10.5 inches)87%extreme
February Weather26°C (79°F)369 mm (14.5 inches)85%extreme
March Weather26°C (79°F)315 mm (12.4 inches)86%extreme
April Weather26°C (79°F)268 mm (10.5 inches)89%extreme
May Weather26°C (79°F)119 mm (4.7 inches)85%extreme
June Weather26°C (79°F)27 mm (1.1 inches)76%very high
July Weather26°C (80°F)3 mm (0.1 inches)53%very high
August Weather27°C (81°F)31 mm (1.2 inches)36%extreme
September Weather28°C (83°F)82 mm (3.2 inches)32%extreme
October Weather27°C (81°F)185 mm (7.3 inches)36%extreme
November Weather27°C (80°F)277 mm (10.9 inches)64%extreme
December Weather26°C (79°F)372 mm (14.7 inches)85%extreme

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