McLean
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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.

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).

McLean Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in McLean - and find the best time to visit.

Best Places in the United States of America in August

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

McLean 3-Day Forecast

Popular in August

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.