August Weather in Salem, United States

Last updated: June 24, 2025

In August, the average temperature in Salem, United States is a pleasant 22°C (72°F). Expect a range that can dip to a cool 8°C (47°F) and peak at a warm 35°C (95°F). During this time, you might encounter 90 mm (3.6 in) of precipitation spread across 10 days, contributing to an average humidity level of 82%. Be prepared for varied weather as you enjoy the beauty of Salem!

August Temperature in Salem

In August in Salem, the average temperature is 22°C (72°F). Maximum can reach 35°C (95°F), and minimum can be as low as 8°C (47°F). This range makes it an ideal time for travelers seeking mild weather and the chance to enjoy both warm and cooler moments.

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 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (47°F).

Data source: Temperature data for Salem generated using information from the Copernicus Climate Change Service.

August Precipitation in Salem

In Salem in August, the precipitation amount is 90 mm (3.6 in) spread over the course of 10 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 90 mm (3.6 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Salem

In Salem in August humidity is 82%. With an average temperature of 22°C (72°F), this humidity feels like walking through a warm, damp blanket, making travel feel more exhausting and sticky as sweat clings to your skin, and every step seems to draw you into a slow, sultry embrace.

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 82%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	18 mm (0.7 inches)	77%	low
February Weather	-7°C (19°F)	20 mm (0.8 inches)	81%	moderate
March Weather	1°C (35°F)	60 mm (2.4 inches)	71%	moderate
April Weather	7°C (44°F)	76 mm (3.0 inches)	75%	very high
May Weather	15°C (59°F)	104 mm (4.1 inches)	74%	very high
June Weather	23°C (73°F)	75 mm (2.9 inches)	82%	extreme
July Weather	24°C (76°F)	85 mm (3.4 inches)	84%	very high
August Weather	22°C (72°F)	90 mm (3.6 inches)	82%	very high
September Weather	18°C (65°F)	86 mm (3.4 inches)	75%	very high
October Weather	9°C (48°F)	77 mm (3.0 inches)	72%	moderate
November Weather	1°C (35°F)	23 mm (0.9 inches)	81%	moderate
December Weather	-4°C (26°F)	35 mm (1.4 inches)	79%	low