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August Weather in Astoria, United States

Last updated: June 24, 2025

In Astoria, United States, the average temperature in August is a pleasant 24°C (75°F). Expect a temperature range that can dip to a cool 12°C (53°F) and soar up to a warm 35°C (95°F). During this time, you'll experience an average precipitation of 89 mm (3.5 in) spread over 9 days, with humidity levels around 77%. Enjoy the balanced climate while exploring all that this destination has to offer!

August Temperature in Astoria

In August in Astoria, the average temperature is 24°C (75°F). Maximums can reach 35°C (95°F), while minimums can drop as low as 12°C (53°F). This makes Astoria an ideal destination for travelers seeking pleasant and varied weather.

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

The chart illustrates August temperature patterns in Astoria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Astoria, August typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (95°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec283043526575787570564135
Data source: Temperature data for Astoria 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 Astoria

In Astoria in August, the precipitation amount is 89 mm (3.5 in) during a span of 9 days.

August Precipitation Trends in Astoria

The chart displays monthly precipitation patterns in Astoria, 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 Astoria, August typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec626612711016413510389711085951
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Astoria

In Astoria in August humidity is 77%. With an average temperature of 24°C (75°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel stifling and may require frequent breaks to stay hydrated while exploring.

August Average Humidity in Astoria

This chart illustrates the average monthly humidity levels in Astoria, 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 Astoria is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%81%82%78%81%79%77%78%79%87%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Astoria

In Astoria 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 Astoria.

Maximum UV Index Levels in Astoria for August

The chart shows the monthly maximum UV Index (UVI) for Astoria 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 Astoria typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357810111098642
Data source: Astoria 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 Astoria Compares to Other Months

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

This table compares monthly weather conditions in Astoria, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)62 mm (2.4 inches)81%moderate
February Weather-1°C (31°F)66 mm (2.6 inches)81%moderate
March Weather6°C (43°F)127 mm (5.0 inches)81%high
April Weather11°C (52°F)110 mm (4.3 inches)82%very high
May Weather18°C (65°F)164 mm (6.5 inches)78%very high
June Weather24°C (75°F)135 mm (5.3 inches)81%extreme
July Weather25°C (78°F)103 mm (4.0 inches)79%very high
August Weather24°C (75°F)89 mm (3.5 inches)77%very high
September Weather21°C (71°F)71 mm (2.8 inches)78%very high
October Weather14°C (57°F)108 mm (4.3 inches)78%high
November Weather5°C (41°F)59 mm (2.3 inches)87%moderate
December Weather2°C (35°F)51 mm (2.0 inches)84%low

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