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August Weather in Beaverton, United States

Last updated: June 24, 2025

In Beaverton, United States, the average temperature in August hovers around 21°C (70°F). Expect minimums of 6°C (44°F) and peaks reaching 33°C (92°F). During this time, precipitation averages 92 mm (3.6 in) over 12 days, and the air is quite humid, with an average humidity of 80%.

August Temperature in Beaverton

In August in Beaverton, the average temperature is 21°C (70°F). Maximum can reach 33°C (92°F) and minimum can be as low as 6°C (44°F). This makes it a great time to visit Beaverton, offering pleasant weather for outdoor activities while also allowing for cooler evenings.

August Weather in Beaverton: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Beaverton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Beaverton, August typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec232333445767737062503629
Data source: Temperature data for Beaverton 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 Beaverton

In Beaverton in August, the precipitation amount is 92 mm (3.6 in) over the course of 12 days.

August Precipitation Trends in Beaverton

The chart displays monthly precipitation patterns in Beaverton, 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 Beaverton, August typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec525153841051048592811235662
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Beaverton

In Beaverton in August humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

August Average Humidity in Beaverton

This chart illustrates the average monthly humidity levels in Beaverton, 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 Beaverton is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Beaverton

In Beaverton in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Beaverton.

Maximum UV Index Levels in Beaverton for August

The chart shows the monthly maximum UV Index (UVI) for Beaverton 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 Beaverton typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Beaverton 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 Beaverton Compares to Other Months

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

This table compares monthly weather conditions in Beaverton, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)52 mm (2.1 inches)88%low
February Weather-5°C (24°F)51 mm (2.0 inches)87%moderate
March Weather1°C (33°F)53 mm (2.1 inches)85%moderate
April Weather7°C (44°F)84 mm (3.3 inches)86%very high
May Weather14°C (57°F)105 mm (4.1 inches)80%very high
June Weather19°C (67°F)104 mm (4.1 inches)80%very high
July Weather23°C (73°F)85 mm (3.4 inches)80%very high
August Weather21°C (70°F)92 mm (3.6 inches)80%very high
September Weather17°C (62°F)81 mm (3.2 inches)80%high
October Weather10°C (51°F)123 mm (4.8 inches)84%moderate
November Weather2°C (36°F)56 mm (2.2 inches)89%moderate
December Weather-2°C (29°F)62 mm (2.4 inches)86%low

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