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August Weather in Salem, United States

Last updated: June 24, 2025

In August, the average temperature in Salem, United States is a pleasant 23°C (73°F). You can expect a minimum of 12°C (54°F) and a maximum of 33°C (92°F), offering a nice range for outdoor activities. However, be prepared for some rain, as the area receives about 132 mm (5.2 in) of precipitation over 14 days. With an average humidity of 73%, it's wise to stay hydrated and enjoy the balmy weather!

August Temperature in Salem

In August in Salem, the average temperature is 23°C (73°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 12°C (54°F). This climate makes Salem an ideal destination for travelers seeking pleasant weather and outdoor activities.

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 (73°F), with highs reaching up to 33°C (92°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec343945546470757368594439
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 132 mm (5.2 in) over a span of 14 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 132 mm (5.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9814712114816517214313211611288130
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 73%. With an average temperature of 23°C (73°F), this humidity feels like a thick blanket wrapping around you, making travel feel stifling and sticky, as every step seems to linger in the moisture-laden air.

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 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
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 Weather1°C (34°F)98 mm (3.9 inches)88%moderate
February Weather4°C (39°F)147 mm (5.8 inches)88%moderate
March Weather7°C (45°F)121 mm (4.8 inches)88%high
April Weather12°C (54°F)148 mm (5.8 inches)86%very high
May Weather18°C (64°F)165 mm (6.5 inches)82%very high
June Weather21°C (71°F)172 mm (6.8 inches)84%very high
July Weather24°C (75°F)143 mm (5.6 inches)82%very high
August Weather23°C (73°F)132 mm (5.2 inches)73%very high
September Weather20°C (69°F)116 mm (4.6 inches)73%very high
October Weather15°C (59°F)112 mm (4.4 inches)81%high
November Weather7°C (44°F)88 mm (3.5 inches)89%moderate
December Weather4°C (39°F)130 mm (5.1 inches)86%moderate

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