Wilmington weather in May 2025

Expect 73°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Wilmington in May. Check more long-term weather averages for Wilmington in May before you book your next holiday to Delaware in 2025/2026.

73
73°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
52
52°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
4.1
4.1 inches of monthly rainfall
8
8 (Very High) UV index
54
54°F sea temperature

More about Wilmington

Wilmington by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Delaware

Skyscanner: Lowest flight prices by destination

Sale

Explore lowest airfares by destinations worldwide
Find the cheapest month or filter by route or month
Prices shown found on Skyscanner in last 8 days

Go to Skyscanner deal >>

View all Skyscanner offers

The May weather guide for Delaware (Wilmington) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about the USA

How hot is it in Wilmington in May?

Daytime temperatures usually reach 73°F in Wilmington in May, falling to 52°F at night.

How sunny is it in Wilmington in May?

There are normally 8 hours of bright sunshine each day in Wilmington in May - that's 56% of daylight hours.

How warm is the sea around Wilmington in May?

The average sea temperature around Wilmington in May is 54°F.

Does it rain in Wilmington in May?

There are usually 11 days with some rain in Wilmington in May and the average monthly rainfall is 4.1 inches.

Wilmington May sunrise & sunset times

Browse the sunrise and sunset times for Wilmington in May 2025. Select a month to view Wilmington sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Thursday, 1st May 2025	05:02	18:57
Friday, 16th May 2025	04:46	19:11
Saturday, 31st May 2025	04:37	19:24

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Delaware - quick facts
Flight time^✝	8 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Tourist info	Delaware Tourism Office