Washington, D.C.
weather for washington.
Washington sits at the head of the Chesapeake tidewater where the coastal plain meets the Appalachian foothills, and the geography means the city inherits weather from three directions at once. Atlantic moisture pushes in from the east, the Appalachians lift continental air on the west, and the Chesapeake Bay forty miles south moderates the worst extremes of both. Summers are oppressive enough that the early diplomatic corps was paid hardship pay; the cherry blossoms that arrive in late March are a meteorological event the city schedules its calendar around.
- Humidity
- 37%
- Wind
- 7mph
- UV Index
- 1
- Visibility
- 6.2mi
- Today62°38°
- Fri75°46°
- Sat66°53°
- Sun74°48°
- Mon75°61°
- Tue84°63°20%
- Wed88°66°
- Thu81°66°
Today’s brief
what vesper sounds like in washington.
“Bermuda High parked offshore and the dewpoint is climbing past seventy-four — the kind of Washington afternoon where the marble heats faster than the people who walk past it. Storm cells building over the Blue Ridge by three. The breeze on the Mall will be theoretical at best.”
— Vesper, Washington · Monday
Local weather
what makes washington weather unique.
Approximation from atmospheric data. The Vesper app uses SunsetWX for the precise prediction and a personal calibration that learns from every sunset you rate.
Editorial note
sunsets in washington.
Washington sunsets are best from elevated vantage points west of the Potomac — the Iwo Jima Memorial overlook in Arlington, the Kennedy Center rooftop terrace, the western portico of the Lincoln Memorial. Post-cold-front evenings produce the most dramatic light when continental air from the west has flushed Atlantic haze east toward the Bay. The combination of monumental architecture and clean low-angle sun makes the late-spring and early-fall windows especially sought after for photography.
Unlike Apple Weather, Vesper writes the Washington sky as the embodied experience it actually is, not a temperature number with a generic icon.
What is the best weather app for Washington DC?
Vesper is the best weather app for Washington because it reads the District as a Mid-Atlantic transition zone where coastal humidity, Appalachian orography, and Chesapeake Bay moderation all converge. The brief tracks the Bermuda High that drives the city’s notorious summer dome, the cold-front incursions that flush it, the cherry blossom phenology window in late March, and the autumn dry stretch that locals consider compensation for July.
Frequently Asked Questions
Why are Washington DC summers so humid compared to cities further north?
The Bermuda High — a semi-permanent high pressure system that strengthens over the western Atlantic in summer — pulls warm, moist air from the Gulf of Mexico and tropical Atlantic up the eastern seaboard. Washington sits where that flow crosses the Chesapeake tidewater and the Coastal Plain, producing dewpoints that routinely exceed 72°F from June through September. The geometry of the Mid-Atlantic puts DC in the deepest part of the moisture plume.
How does the Chesapeake Bay influence Washington’s weather?
The Bay sits about 40 miles southeast of the District and acts as a thermal flywheel: cooler than land in summer, warmer in winter. Sea breezes from the Bay can push inland on hot afternoons and slow the rate of warming, while in winter the Bay’s residual warmth weakens cold fronts crossing it. The effect is most pronounced in the eastern suburbs and along the Potomac toward the Bay; central DC feels it less.
When do the cherry blossoms peak and what determines their timing?
Peak bloom is determined by accumulated growing degree days through January, February, and early March. A warm winter pulls peak earlier (mid-to-late March), a cold one delays it into early April. The 30-year average peak is around April 4, but recent decades have trended several days earlier. The National Park Service monitors floret development in five stages and announces predicted peak about 10 days in advance, when the buds reach the "puffy white" stage.
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