The best time to visit Washington, D.C., is during the spring months of March to May, with April being particularly popular due to the famous cherry blossoms. This vibrant season brings mild temperatures averaging around 65°F, superb for strolling through the National Mall and visiting the iconic monuments and memorials. The blooming cherry trees create a picturesque backdrop that enhances your sightseeing experience.
During the peak tourist season from June to August, the city buzzes with activity as families and travelers flock to enjoy the numerous outdoor festivals and events. While the temperatures can rise into the high 80s and low 90s Fahrenheit, making some afternoons a bit warm, early morning or evening explorations can be quite pleasant. The extended daylight hours provide ample opportunity for discovering the city's rich history and vibrant culture.
For those who appreciate a more tranquil atmosphere, late September and October offer a delightful alternative. The weather remains comfortable, with temperatures in the mid-60s to low 70s, and the fall foliage adds a beautiful touch to the scenery. This is also a time when hotel rates tend to be lower, allowing you to enjoy the same quality experiences at a better value.