May Packing List for Washington DC — What to Wear & Bring

Linen is ideal for Washington DC in May as humidity begins to rise alongside the average daily high of 77F.

May in Washington DC brings highs of 77°F and 11 rainy days — breathable cotton or linen-blend pants keep you comfortable during long National Mall walks without trapping heat.

Flowy dresses are perfect for exploring the outdoor exhibits at the National Zoo in Washington DC when temps reach 77F.

With 11 rainy days, May is Washington DC's wettest month, making a breathable rain jacket an absolute necessity.

Supportive sandals are great for the 77F May weather in Washington DC, provided they can handle 5+ miles of walking.

Canvas shoes are breathable for May's warmth in Washington DC but should be treated with water-repellent spray for the 11 rainy days.

Polished loafers fit the Georgetown aesthetic and are comfortable for browsing the neighborhood's shops in 77F weather.

A hat provides much-needed shade on the exposed National Mall in Washington DC when May highs hit 77F.

Washington DC's open National Mall has no shade canopy and May highs reach 77°F — UV-blocking sunglasses protect your eyes on the 2-mile stretch between the Lincoln Memorial and the Capitol.

A waterproof case is a smart accessory for the 11 rainy days that typically hit Washington DC throughout May.

Since May is Washington DC's rainiest month with 11 days of precipitation, a large, sturdy umbrella is highly recommended.

May averages 11 rainy days in Washington DC — a quick-dry towel in your bag lets you wipe down a wet bench at the National Mall or dry off after an unexpected shower without ruining your afternoon.

May highs reach 77°F in Washington DC and the National Mall has few water fountains along its 2-mile stretch — an insulated bottle keeps water cool during long outdoor days.