August 1 is generally a great time to visit Washington DC. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 31°C weather. Expect a bustling atmosphere in Washington DC right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Washington DC
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Connect
The D.C. government operates a network o...
Safety
Moderate Safety
GPI: 2.44
Washington DC Weather Forecast for August 1
"Warm & Sunny. Expect average highs of 30.5°C. 32% chance of rain."
What to Wear in Washington DC in August
Based on historical data for August 1, Washington DC typically experiences temperatures between 20.9°C and 30.5°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 32% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Washington DC
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
30.5°C
Daytime Peak
Average Low
20.9°C
Nighttime Low
Feels Like
36.6°C
🔥 Heat index effect
Rain Chance
32%
Avg 2.2mm if it rains
Cloud Cover
51%
Overcast
Pressure
1016 hPa
Low volatility
Washington DC Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 88% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 18 min to burn
Type III-IV
🟡 27 min to burn
Type V-VI
🟢 45 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
24.6°C
Humid/Sticky
Heat Index
36.6°C
Feels hotter
😐 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
High
97/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~457
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Washington DC
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:10
☀️ Noon
12:15
🌇 Sunset
19:21
⏱️ Daylight
14h 10m
Wind Speed
12 km/h
Gentle breeze
Sunshine
10.9 hrs
Direct Sun (Cloud-free)
Humidity
71%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Washington DC
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Washington DC
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Washington DC on August 1 averages 30.5°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 89/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Washington DC Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 4
30.4°C • 26% rain
Score
92
August 6
30.1°C • 28% rain
Score
92
August 7
30°C • 28% rain
Score
92
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 1) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Washington DC Worth Visiting on August 1?
Planning a trip to Washington DC on August 1? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 30.5°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 457 landing slots available daily during this period, indicating peak tourist activity.
📊 Historical Extremes: The hottest August 1 recorded in the last 30 years saw temperatures hit 35.2°C in 2024, while the coldest dropped to 18°C in 2023.