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August Weather in Boa Vista, Brazil

Last updated: August 22, 2025

In August, the average temperature in Boa Vista, Brazil hovers around 27°C (81°F), with a comfortable minimum of 22°C (71°F) and a warm maximum of 34°C (94°F). However, be prepared for some rain, as 183 mm (7.2 in) of precipitation is expected over 22 days. The air will feel quite humid too, with an average humidity level of 77%.

August Temperature in Boa Vista

In August in Boa Vista, the average temperature is 27°C (81°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop to as low as 22°C (71°F). This pleasant climate makes Boa Vista an ideal destination for travelers seeking warm and comfortable weather.

August Weather in Boa Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Boa Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boa Vista, August typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec828384838079798182848382
Data source: Temperature data for Boa Vista 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 Boa Vista

In Boa Vista in August, the precipitation amount is 183 mm (7.2 in) over the course of 22 days.

August Precipitation Trends in Boa Vista

The chart displays monthly precipitation patterns in Boa Vista, 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 Boa Vista, August typically receives around 183 mm (7.2 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec5233701643843603041831197113575
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Boa Vista

In Boa Vista in August, humidity is 77%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket, making travel feel sticky and heavy, as sweat clings to the skin and the air becomes thick, causing you to long for refreshing breezes and cool shade.

August Average Humidity in Boa Vista

This chart illustrates the average monthly humidity levels in Boa Vista, 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 Boa Vista is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec44%40%38%39%60%89%84%77%60%40%44%49%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Boa Vista

In Boa Vista in August, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Boa Vista.

Maximum UV Index Levels in Boa Vista for August

The chart shows the monthly maximum UV Index (UVI) for Boa Vista 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 Boa Vista typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516161413121313131313
Data source: Boa Vista 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 Boa Vista Compares to Other Months

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

This table compares monthly weather conditions in Boa Vista, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)52 mm (2.1 inches)44%extreme
February Weather29°C (84°F)33 mm (1.3 inches)40%extreme
March Weather29°C (84°F)70 mm (2.7 inches)38%extreme
April Weather28°C (83°F)164 mm (6.5 inches)39%extreme
May Weather27°C (80°F)384 mm (15.1 inches)60%extreme
June Weather26°C (80°F)360 mm (14.2 inches)89%extreme
July Weather26°C (79°F)304 mm (12.0 inches)84%extreme
August Weather27°C (81°F)183 mm (7.2 inches)77%extreme
September Weather28°C (83°F)119 mm (4.7 inches)60%extreme
October Weather29°C (84°F)71 mm (2.8 inches)40%extreme
November Weather29°C (84°F)135 mm (5.3 inches)44%extreme
December Weather28°C (83°F)75 mm (3.0 inches)49%extreme

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