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August Weather in Salem, United States

Last updated: June 24, 2025

In Salem, United States, the average temperature in August is a pleasant 25°C (77°F). Expect a range that dips to a minimum of 16°C (60°F) and peaks at a warm 35°C (94°F). During this month, you can anticipate 120 mm (4.7 in) of precipitation spread over approximately 13 days, paired with an average humidity level of 74%. Embrace the warmth while staying prepared for occasional rain!

August Temperature in Salem

In August in Salem, the average temperature is 25°C (77°F), with maximums reaching up to 35°C (94°F) and minimums dropping as low as 16°C (60°F). This pleasant climate makes it an ideal time for outdoor adventures and sightseeing.

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

The chart illustrates August temperature patterns in Salem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Salem, August typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (94°F) and lows dropping to around 16°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec394350576874797772624844
Data source: Temperature data for Salem 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 Salem

In Salem in August, the precipitation amount is 120 mm (4.7 in) spread over 13 days.

August Precipitation Trends in Salem

The chart displays monthly precipitation patterns in Salem, 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 Salem, August typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10219214914714216211912012412284145
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Salem

In Salem in August humidity is 74%. With an average temperature of 25°C (77°F), this humidity feels like a warm, muggy blanket wrapping around you, making travel a bit more challenging as you find yourself sticky and in need of frequent breaks to hydrate and cool down.

August Average Humidity in Salem

This chart illustrates the average monthly humidity levels in Salem, 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 Salem is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Salem

In Salem in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Salem.

Maximum UV Index Levels in Salem for August

The chart shows the monthly maximum UV Index (UVI) for Salem 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 Salem typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109753
Data source: Salem 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 Salem Compares to Other Months

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

This table compares monthly weather conditions in Salem, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)102 mm (4.0 inches)87%moderate
February Weather6°C (44°F)192 mm (7.6 inches)86%high
March Weather10°C (50°F)149 mm (5.9 inches)86%high
April Weather14°C (57°F)147 mm (5.8 inches)82%very high
May Weather20°C (68°F)142 mm (5.6 inches)82%very high
June Weather24°C (75°F)162 mm (6.4 inches)83%extreme
July Weather26°C (79°F)119 mm (4.7 inches)80%extreme
August Weather25°C (77°F)120 mm (4.7 inches)74%very high
September Weather22°C (73°F)124 mm (4.9 inches)71%very high
October Weather17°C (63°F)122 mm (4.8 inches)78%high
November Weather9°C (48°F)84 mm (3.3 inches)88%moderate
December Weather7°C (44°F)145 mm (5.7 inches)88%moderate

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