30YearWeather
Washington DC
When to avoid visiting Washington DC, United States
Seasonal Comparison

Least Favorable Months in Washington DC

Based on 30 years of NASA satellite data, Washington DC enjoys relatively good weather year-round. However, if you're comparing months, July, August, October are the least favorable — though still perfectly visitable.

July63/100August63/100October64/100

Good news: Washington DC has no truly bad months!

With a score of 63/100, even July(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Washington DC, not objectively bad. Many travelers enjoy visiting during these periods and benefit from lower prices and fewer crowds.

Why July is the Least Favorable (But Still Okay) Time to Visit Washington DC

Is July a Good Time to Visit Washington DC?

👌Good option with minor considerations
Short Answer

July brings oppressive conditions to Washington DC: 31°C highs feel like 38°C due to 70% humidity. Only recommended for heat-tolerant travelers willing to limit outdoor activities during peak afternoon hours.

Decision Factors

Feels significantly hotter than 31°C

Heat index: 38°C due to 70% humidity

Peak tourist season

96% of annual peak - expect crowds and peak prices

Plenty of sunshine

11.5h of sunshine daily

Exceptional dining scene

112 Michelin-listed restaurants

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    Heat index of 38°C poses health risks

  • 🌡️
    Heat-sensitive visitors

    38°C feels-like temperature creates discomfort

930 observations30-year historical data
Confidence: 95%

Key Challenges During These Months

Extreme Heat

Temperatures can become dangerously hot with oppressive humidity

Months to Avoid: Detailed Breakdown

Worst63

July

Feels significantly hotter than 31°C, Peak tourist season

View details
2nd Worst63

August

Feels significantly hotter than 29.6°C, Peak tourist season

View details
3rd Worst64

October

Peak tourist season

View details

Looking for the Best Time Instead?

Discover the optimal months to visit Washington DC with ideal weather conditions, fewer crowds, and better prices.

Best Time to Visit Washington DC

Frequently Asked Questions

When should I avoid visiting Washington DC?

Based on 30 years of data, the most challenging months are July, August, October. Primary concerns include: feels significantly hotter than 31°c, peak tourist season.

What is the worst month to visit Washington DC?

July is typically the most challenging month, scoring only 63/100 in our travel conditions analysis.

Can I still visit during these months?

Yes, many travelers still visit during challenging months. Come prepared with appropriate gear, flexible bookings, and backup plans. Lower prices and fewer tourists can offset the weather challenges.

Are hotels cheaper during these months?

Often yes. Low season typically means reduced hotel rates, easier reservations, and fewer crowds at popular attractions. Some travelers prefer this trade-off.