McLean Weather in August

August in McLean sees daytime temperatures around 30°C (86°F) and lows of 19°C (66°F) at night. With around 87 mm (3.4 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in McLean in August

Typically, about 10 days will experience rainfall, with an average of 87 mm (3.4 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in McLean in August

If you're visiting McLean in August, expect highs of 30°C (86°F) and overnight lows around 19°C (66°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 19°C (66°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in McLean in August

There are approximately 262 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in McLean in August

August sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

If you prefer dry days with pleasant temperatures, April typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit the United States of America, check out our McLean's climate page.

McLean Temperature in August

Min Temperature 19°C (66°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 34%  

Precipitation 87 mm (3.4 in)  

Rainy days 10 days  

Humidity 69% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 262 hours *  

Percentage Sunshine 62% *  

* Data from: Washington DC, the United States of America (15 KM, 9 Miles).

What to Wear in McLean in August

Warm but pleasant conditions in McLean in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in McLean in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our McLean's climate page.

More climate data for McLean

Temperature Rainfall Sunshine Humidity Wind Speed

See the full McLean climate overview or explore weather in the United States of America.