30YearWeather
Washington DC in July
Washington DC weather in July - United States
☀️Hot & Sunny

Washington DC Weather in July

Plan your July trip to Washington DC, United States. Based on 30 years of NASA data, expect temperatures of 31°C (high) to 21°C (low), with 30% rain probability and 8 hours of daily sunshine. Pack rain gear for around 27 rainy days.

Avg High
31°C

Hottest around day 17

Avg Low
21°C

Coolest around day 1

Rainy Days
27days

30% avg rain chance

Sunshine
8hrs/day

Summer season

Washington DC July Weather Calendar

Click any day to see detailed weather information

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

Travel Intelligence

Exclusive flight analytics & health data for Washington DC

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Well Connected
71/ 100
Traffic Index

Popular destination

Peak Daily Arrivals

0

slots per day

Peak

Jun

Low

Jan

Monthly Traffic Distribution

321
Jan
333
Feb
366
Mar
383
Apr
417
May
470
Jun
453
Jul
457
Aug
447
Sep
421
Oct
362
Nov
397
Dec
Traffic Level
Low Season

Key Connections

Atlanta Hartsfield Jackson (ATL)
Denver (DEN)
Charlotte Douglas (CLT)
San Francisco (SFO)
Teterboro (TEB)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

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%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Washington DC in July averages 31°C with 30% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Washington DC in July

What are the temperatures in Washington DC in July?

Daytime highs average 31°C, nights drop to 21°C. Temperatures remain fairly consistent.

How many rainy days in Washington DC in July?

Expect around 27 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Washington DC in July?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is July peak season in Washington DC?

This is shoulder season—moderate prices and manageable crowds.