United States Washington DC Weather in May (Spring tail — comfortable + before summer humidity) — Climate Guide
May (Spring tail — comfortable + before summer humidity) in Washington DC is Very Good
Washington DC Weather in May (Spring tail — comfortable + before summer humidity) — Quick Answer
As of 2026- Avg temp
- 24° / 14°
- Rainfall
- 100mm · 11 days
- Crowds
- Busy
As of 2026, Washington DC in May (Spring tail — comfortable + before summer humidity) averages a high of 24°C and low of 14°C with 100mm of rain over about 11 days. Late spring warming — T-shirt + light cardigan for mornings + sunglasses. Light rain jacket for thunderstorms (100mm rainfall). Sneakers + walking shoes. Light scarf for cool 14°C evenings. UV index 8 — sunscreen SPF 30+ essential.
May (Spring tail — comfortable + before summer humidity) is Very Good for Washington DC.
May spring tail — Cherry Blossoms done but climate ideal + lower humidity than summer. Memorial Day weekend hotels spike. Best month for Mt Vernon + Old Town Alexandria + outdoor monuments + Cherry Blossom Festival tail crowds gone.
Travel score
Washington DC May (Spring tail — comfortable + before summer humidity) Weather Stats
Avg High
24°C
Avg Low
14°C
Rainy Days
11
100mm total
Sunshine
9h
Daily avg
Humidity
65%
Comfortable
UV Index
8
Very high
Wind
13 km/h
Gusts 26
Sea Temp
0°C
Not swimmable
Crowds
Busy
At attractions
May (Spring tail — comfortable + before summer humidity) Sunrise & Sunset
Air Quality
PM2.5
18 μg/m³
PM10
38 μg/m³
Status
Good
Feels-Like Temperature & Wind
Feels like
Daytime
25°C
Nighttime
14°C
Humidity and wind affect how the actual temperature feels.
Wind
13 km/h
Max gust 26 km/h
Activities Recommended for May (Spring tail — comfortable + before summer humidity)
May (Spring tail — comfortable + before summer humidity) Travel Pros & Cons
Pros
- Climate 24/14°C comfortable
- Lower humidity than summer
- Memorial Day weekend free National Memorial Day Concert (Capitol West Lawn)
- Embassy Row Open House (free embassy tours)
- DC Jazz Festival (mid-May, free)
- Daylight 14h+ (sunset 19:25)
Cons
- Memorial Day weekend hotels spike 1.5x
- Rain 11 days (May thunderstorms)
- Cherry Blossoms already done
- Humidity climbing late month
May (Spring tail — comfortable + before summer humidity) Events & Festivals
- Memorial Day weekend (last Monday May) — Rolling Thunder motorcycle ride + National Memorial Day Concert at Capitol West Lawn (free)
- Smithsonian Folklife Festival opens (late May)
- Embassy Row Open House (May 4 + 11, free embassy tours)
- DC Jazz Festival (mid-May, free concerts)
Washington DC in May (Spring tail — comfortable + before summer humidity) — Full Picture
May spring tail — Cherry Blossoms done but climate ideal + lower humidity than summer. Memorial Day weekend hotels spike. Best month for Mt Vernon + Old Town Alexandria + outdoor monuments + Cherry Blossom Festival tail crowds gone.
What to Wear & What to Pack
Late spring warming — T-shirt + light cardigan for mornings + sunglasses. Light rain jacket for thunderstorms (100mm rainfall). Sneakers + walking shoes. Light scarf for cool 14°C evenings. UV index 8 — sunscreen SPF 30+ essential.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current19°C
9°C
10/mo
Summer (Jun·Jul·Aug)
30.7°C
20.7°C
9.3/mo
Autumn (Sep·Oct·Nov)
20.3°C
11°C
8/mo
Winter (Dec·Jan·Feb)
8.3°C
0°C
8.7/mo
Washington DC Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 7° | -1° | 9d·75mm | 5h | 65% | 2 | Quiet | Low season | |
| 9° | 0° | 8d·70mm | 6h | 62% | 3 | Quiet | Low season | |
| 14° | 4° | 9d·80mm | 7h | 60% | 5 | Very busy | Peak | |
| 19° | 9° | 10d·80mm | 8h | 60% | 7 | Very busy | Peak | |
| 24° | 14° | 11d·100mm | 9h | 65% | 8 | Busy | Peak | |
| 29° | 19° | 10d·100mm | 10h | 70% | 9 | Busy | Peak | |
| 32° | 22° | 10d·100mm | 10h | 73% | 10 | Very busy | Peak | |
| 31° | 21° | 8d·90mm | 9h | 73% | 9 | Busy | Peak | |
| 27° | 17° | 8d·100mm | 8h | 70% | 7 | Moderate | Shoulder | |
| 20° | 11° | 8d·80mm | 7h | 65% | 5 | Moderate | Shoulder | |
| 14° | 5° | 8d·80mm | 6h | 65% | 3 | Quiet | Low season | |
| 9° | 1° | 9d·90mm | 5h | 65% | 2 | Moderate | Shoulder |
View Other Months
Washington DC May (Spring tail — comfortable + before summer humidity) Hotel Picks
Frequently Asked Questions
Is May (Spring tail — comfortable + before summer humidity) a good time to visit Washington DC?
Washington DC in May (Spring tail — comfortable + before summer humidity) is Very Good. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Washington DC in May (Spring tail — comfortable + before summer humidity)?
Washington DC May (Spring tail — comfortable + before summer humidity) averages a high of 24°C and a low of 14°C.
Does it rain much in Washington DC in May (Spring tail — comfortable + before summer humidity)?
Washington DC May (Spring tail — comfortable + before summer humidity) averages 100mm of rainfall over about 11 rainy days.
What should I wear in Washington DC in May (Spring tail — comfortable + before summer humidity)?
Late spring warming — T-shirt + light cardigan for mornings + sunglasses. Light rain jacket for thunderstorms (100mm rainfall). Sneakers + walking shoes. Light scarf for cool 14°C evenings. UV index 8 — sunscreen SPF 30+ essential.
What time are sunrise and sunset in Washington DC in May (Spring tail — comfortable + before summer humidity)?
Washington DC May (Spring tail — comfortable + before summer humidity) sunrise is 05:20 and sunset is 19:25, with 14h 5m of daylight.
What's the air quality like in Washington DC in May (Spring tail — comfortable + before summer humidity)?
Washington DC May (Spring tail — comfortable + before summer humidity) air quality (AQI) averages 45, rated Good. PM2.5 averages 18μg/m³.
What activities are recommended in Washington DC in May (Spring tail — comfortable + before summer humidity)?
In May (Spring tail — comfortable + before summer humidity), Washington DC is great for National Mall walking (Lincoln to Capitol), Smithsonian, Mt Vernon + Old Town Alexandria.
Is May (Spring tail — comfortable + before summer humidity) peak season in Washington DC?
Washington DC May (Spring tail — comfortable + before summer humidity) crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Washington DC
View Other Months
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.