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August Weather in Salem, United States

Last updated: June 24, 2025

In Salem, United States, the average temperature in August hovers around 23°C (74°F). Expect a temperature range with a minimum of 11°C (52°F) and a maximum of 34°C (93°F). During this month, the region experiences an average precipitation of 107 mm (4.2 in), spread across about 12 days. With an average humidity of 76%, it’s a time when the air feels particularly moist and warm.

August Temperature in Salem

In August in Salem, the average temperature is 23°C (74°F). Maximums can reach 34°C (93°F) and minimums can be as low as 11°C (52°F). This pleasant climate makes Salem an ideal destination for travelers seeking a comfortable getaway.

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 23°C (74°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec323439495968747367574436
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 107 mm (4.2 in) spread over 12 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 107 mm (4.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec709095128111951581079613196133
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 76%. With an average temperature of 23°C (74°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor exploration feel a bit sluggish and requiring frequent breaks for hydration and respite from the heat.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
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 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 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
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 Weather0°C (32°F)70 mm (2.8 inches)84%moderate
February Weather1°C (34°F)90 mm (3.5 inches)84%moderate
March Weather4°C (39°F)95 mm (3.7 inches)82%high
April Weather9°C (49°F)128 mm (5.1 inches)79%very high
May Weather15°C (59°F)111 mm (4.4 inches)75%very high
June Weather20°C (69°F)95 mm (3.8 inches)78%very high
July Weather24°C (75°F)158 mm (6.2 inches)76%very high
August Weather23°C (74°F)107 mm (4.2 inches)76%very high
September Weather19°C (67°F)96 mm (3.8 inches)75%very high
October Weather14°C (57°F)131 mm (5.2 inches)75%high
November Weather7°C (44°F)96 mm (3.8 inches)80%moderate
December Weather2°C (36°F)133 mm (5.2 inches)80%low

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