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August Weather in Porto Velho, Brazil

Last updated: August 22, 2025

In August, the average temperature in Porto Velho, Brazil is a warm 27°C (81°F), with a minimum of 14°C (57°F) and a maximum reaching 37°C (99°F). During this period, expect 31 mm (1.2 in) of precipitation over about 5 days, and enjoy relatively low humidity at an average of 36%.

August Temperature in Porto Velho

In August in Porto Velho, the average temperature is 27°C (81°F), with maximums reaching 37°C (99°F) and minimums dipping as low as 14°C (57°F). This pleasant climate makes it an ideal destination for travelers seeking warm weather and diverse outdoor activities.

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

The chart illustrates August 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, August typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (99°F) and lows dropping to around 14°C (57°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.

August Precipitation in Porto Velho

In Porto Velho in August, the precipitation amount is 31 mm (1.2 in) spread over 5 days.

August Precipitation Trends in Porto Velho

The chart displays monthly precipitation patterns in Porto Velho, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Porto Velho, August typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec2683693152681192733182185277372
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Porto Velho

In Porto Velho in August, 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.

August Average Humidity in Porto Velho

This chart illustrates the average monthly humidity levels in Porto Velho, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Porto Velho

In Porto Velho in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Porto Velho.

Maximum UV Index Levels in Porto Velho for August

The chart shows the monthly maximum UV Index (UVI) for Porto Velho in August, 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 August, the maximum UV index in Porto Velho typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151516151210101112141514
Data source: Porto Velho August 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 August 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 August’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 August’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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