Washington DC weather in August
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Washington DC August weather at a glance
In August, Washington DC averages 23.3°C, with typical highs of 28.2°C and lows of 18.9°C. The historical average is 11 wet days and 72% humidity.
Washington DC August temperature & humidity
Washington DC August rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Washington DC in August
Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 28.2°C
- Morning & eveningLight layer for air-conditioned rooms · average low 18.9°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Washington DC August sunrise & sunset times
2026 August · Local time (America/New_York)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-08-01 | 06:09 | 20:19 | 14h 10m |
| 2026-08-15 | 06:22 | 20:03 | 13h 41m |
| 2026-08-31 | 06:36 | 19:40 | 13h 4m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Best months to visit Washington DC
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
August weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Washington DC weather like in August?
In August, Washington DC averages 23.3°C, with typical highs of 28.2°C and lows of 18.9°C. The historical average is 11 wet days and 72% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Washington DC in August?
There are about 11 wet days in August. A compact umbrella is still useful.
What should I wear in Washington DC in August?
Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Washington DC?
Recent weather data rates April, August, October among the more comfortable months.
Where can I check Washington DC weather in August in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Washington DC in August?
On 2026-08-15, calculated sunrise is 06:22 and sunset is 20:03 in local time (America/New_York). Times vary by date and terrain.
Washington DC weather by month
More Americas destinations in August
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations