Washington DC Weather in May

May in Washington DC sees daytime temperatures around 24°C (75°F) and lows of 14°C (57°F) at night. With around 104 mm (4.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Washington DC in May

Expect around 12 days of rain based on historical data, with 104 mm (4.1 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Washington DC in May

In May, expect high temperatures in Washington DC, with highs of 24°C (75°F) and lows of 14°C (57°F) at night. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Washington DC in May

The city usually sees around 259 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Wind Speed in Washington DC in May

In May, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

If you prefer dry days with pleasant temperatures, April and September typically offer 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.