19 Best Things to Do in DC August 2023: National Book Festival, County Fairs, and More

Summer is not over yet! August in DC has so many great things to do outdoors, like outdoor movies and concerts, summer fairs and festivals, and the best beach days.
Whether your family is looking to cool off at one of the best water parks in the DC area, relax at a free outdoor movie or summer concert, or explore our region with a summer day trip from DC, there's plenty of fun to be had before school starts.
August also kicks off county fair season across the DC region. From the Montgomery County Agriculture Fair to the Prince William County Fair to the Arlington County Fair, kids can enjoy classic rides, games, funnel cake, and more.
And, big news: the new LEGO® Discovery Center Washington, DC opens August 14 in Springfield, Virginia. Want a sneak peek? It's hosting First-to-Play Days August 10-13.
Find more top August fun in our list of the best indoor rock climbing gyms for kids near DC and our Heat Wave Hot List: 25 Cool Things To Do in DC with Kids.
We're adding more events to our family activity calendar every day, so don't forget to check it frequently.
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Places featured in this article:
Rock Creek Park Tennis Center
Great Country Farms
National Harbor SouthPoint
Trinity Centre
Downtown One Loudoun
LEGO® Discovery Center Washington, DC
Montgomery County Agricultural Center
The Fairgrounds
Walter E Washington Convention Center
Thomas Jefferson Community Center
Lake Anne Plaza
Flying Circus Aerodrome
Oronoco Bay Park