SeasonScore
Washington, D.C., United States
Photo: Peterfitzgerald · CC BY-SA 3.0

United States

Washington, D.C. in August

☀️ Summer

Warm, a little humid and some showers.

🎒 Pack: light, breathable clothes & sunscreen · sunglasses & hat

Best months: May (9.2), Oct (9.2), Apr (9.1)

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Why August scores 8.5What goes into the score

How it works
🌡️ 31° / 22°C🌧️ 83 mm💧 dew pt 19°🍃 PM2.5 18
  • Weather comfort8.3
    • ✓Warm (31°C highs / 22°C lows)
    • !Humid (dew point 18.8°C)
    • ✓Mostly dry (~83 mm rain)
  • Air quality8.0
    • ✓Moderate (PM2.5 ~18 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut August side by side with another month
AugMay
Score8.5 Excellent9.2 Excellent
Season☀️ Summer🌷 Spring
High / low31° / 22°25° / 14°
Rain83 mm100 mm
Humiditydew pt 19°dew pt 14°
PM2.518 µg/m³10 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Washington, D.C. weather-station normals. Rainfall: Washington, D.C. weather-station normals (national met service).

Holidays & crowdsAugust 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in United States this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Washington, D.C.

  • Cherry blossom (Tidal Basin)Typical dates
    Peak bloom usually last week of March to first week of April

    Peak bloom has ranged from 15 Mar (1990) to 18 Apr (1958). In 2026 peak bloom was reached on 26 Mar.

    Source: US National Park Service

  • Snowy daysTypical dates
    Snow likely Dec–Mar (most in Jan: ~3 days)

    Average number of days with snowfall at Washington, D.C.. About 12 cm of snow falls in an average Jan.

    Source: Washington, D.C. weather-station normals (national weather service, via Wikipedia climate table)

Explore Washington, D.C.Events, sights, food & souvenirs

Check event dates locally

The US capital on the Potomac, known for the National Mall's monuments, free Smithsonian museums and government landmarks.

Events in August

No major events on our calendar for August.

Coming up later

National Cherry Blossom FestivalDate variesUsually late March to mid-April

Celebrates the blooming of cherry trees gifted by Japan in 1912.

Why go: Peak bloom varies; go at sunrise to avoid crowds.

Where: Tidal Basin

Smithsonian Folklife FestivalDate variesUsually late June to early July

An outdoor festival of living cultural traditions.

Why go: Free; hot and humid in summer.

Where: National Mall

Independence DayEvery year4 July every year

Parade, concert and fireworks on the Mall.

Why go: Security checkpoints and huge crowds.

Where: National Mall