30YearWeather
Washington DC in May
Washington DC weather in May - United States
😊Warm & Pleasant

Washington DC Weather in May

Plan your May trip to Washington DC, United States. Based on 30 years of NASA data, expect temperatures of 23°C (high) to 13°C (low), with 31% rain probability and 8 hours of daily sunshine. Pack rain gear for around 30 rainy days.

Avg High
23°C

Hottest around day 31

Avg Low
13°C

Coolest around day 1

Rainy Days
30days

31% avg rain chance

Sunshine
8hrs/day

Spring season

Washington DC May 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 May a Good Time to Visit Washington DC?

👍Solid choice for most travelers
Short Answer

Popular May in Washington DC offers 23°C and 31% rain chance - excellent conditions that attract maximum visitors. Book 3-6 months ahead for best rates.

Decision Factors

Peak tourist season

89% of annual peak - expect crowds and high prices

Ideal temperature range

23.4°C - perfect for sightseeing and outdoor activities

Plenty of sunshine

9.6h of sunshine daily

Exceptional dining scene

112 Michelin-listed restaurants

Good For

  • 👴
    Elderly travelers

    Comfortable 23.4°C temperature range with manageable humidity

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

  • 🌡️
    Heat-sensitive visitors

    Manageable 23.4°C without oppressive humidity

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

930 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Washington DC in May averages 23°C with 31% precipitation probability."

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

Frequently Asked Questions: Washington DC in May

What are the temperatures in Washington DC in May?

Daytime highs average 23°C, nights drop to 13°C. Temperatures remain fairly consistent.

How many rainy days in Washington DC in May?

Expect around 30 days with measurable rainfall. An umbrella is advisable.

What to wear in Washington DC in May?

Comfortable casual wear with a light jacket for evenings.

Is May peak season in Washington DC?

This is shoulder season—moderate prices and manageable crowds.