August Weather in Potomac, United States

Last updated: June 24, 2025

In Potomac, United States, the average temperature in August hovers around 23°C (74°F). Expect a minimum of 12°C (54°F) and a maximum of 34°C (93°F), providing a comfortable range for outdoor activities. During this month, precipitation amounts to 110 mm (4.3 in) over 11 days, giving the air an average humidity of 81%. Perfect for enjoying the lush, vibrant scenery!

August Temperature in Potomac

In August in Potomac, the average temperature is 23°C (74°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 12°C (54°F). This pleasant climate makes Potomac an ideal destination for travelers seeking a comfortable getaway during this time of year.

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

The chart illustrates August temperature patterns in Potomac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Potomac, 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 12°C (54°F).

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

August Precipitation in Potomac

In Potomac in August, the precipitation amount is 110 mm (4.3 in) spread over 11 days.

August Precipitation Trends in Potomac

The chart displays monthly precipitation patterns in Potomac, 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 Potomac, August typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 11 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 Potomac

In Potomac in August, humidity is 81%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket draped over your skin, making travel feel a bit more sluggish and requiring plenty of water breaks to stay comfortable.

August Average Humidity in Potomac

This chart illustrates the average monthly humidity levels in Potomac, 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 Potomac is approximately 81%, 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 Potomac

In Potomac 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 Potomac.

Maximum UV Index Levels in Potomac for August

The chart shows the monthly maximum UV Index (UVI) for Potomac 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 Potomac typically reaches 9, which falls under the very high exposure category.

Data source: Potomac 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 Potomac Compares to Other Months

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

This table compares monthly weather conditions in Potomac, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	77 mm (3.0 inches)	82%	moderate
February Weather	-1°C (31°F)	77 mm (3.0 inches)	83%	moderate
March Weather	6°C (43°F)	111 mm (4.4 inches)	84%	high
April Weather	11°C (52°F)	118 mm (4.6 inches)	85%	very high
May Weather	18°C (65°F)	147 mm (5.8 inches)	79%	very high
June Weather	23°C (74°F)	112 mm (4.4 inches)	82%	extreme
July Weather	25°C (77°F)	87 mm (3.4 inches)	80%	very high
August Weather	23°C (74°F)	110 mm (4.3 inches)	81%	very high
September Weather	21°C (70°F)	76 mm (3.0 inches)	80%	very high
October Weather	14°C (57°F)	119 mm (4.7 inches)	82%	high
November Weather	5°C (41°F)	74 mm (2.9 inches)	88%	moderate
December Weather	2°C (36°F)	59 mm (2.3 inches)	84%	low