Will I need a jacket in Philadelphia in May?

Yes — average lows hit about 54°F, so plan on a light jacket or cardigan for mornings and evenings.

Is May rainy in Philadelphia?

Expect roughly 11 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.

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Linen is breathable and dries quickly, which is helpful during Philadelphia's 11 rainy days and 74°F May afternoons.
Philadelphia's 74°F May weather is perfect for dresses when visiting the Spruce Street Harbor Park waterfront.
A denim jacket is a Philadelphia staple that provides just enough warmth for 54°F evenings in the Fishtown neighborhood.
Philadelphia's May highs of 74°F across 11 rainy days call for versatile tops — a breathable polo or button-down keeps you looking 'urban-smart' for historic district walks while handling the occasional afternoon shower.

Lightweight sneakers are ideal for navigating Philadelphia's flat but extensive downtown area in 74°F weather.
May kicks off sandal season in Philadelphia, but the city's cobblestone near Old City and the long stretches of South Street require support — sandals with a contoured footbed handle 74°F afternoons without sacrificing comfort.
With 11 days of rain in May, having a pair of shoes that can handle a damp Philadelphia sidewalk is essential.

Philadelphia's May sun gets intense on the open Franklin Parkway and at Penn's Landing, where highs reach 74°F with minimal shade — a wide-brimmed hat protects your face on long outdoor afternoons.
A thin scarf is a great accessory for Philadelphia's 54°F nights without adding too much bulk to your luggage.
Even with 11 rainy days, the May sun in Philadelphia can be intense during the many clear, 74°F periods.

May is one of the rainiest months in Philadelphia (11 days), so an umbrella should always be in your day bag.
Staying hydrated is important as Philadelphia temperatures rise to 74°F and you spend more time walking outdoors.
May highs reach 74°F in Philadelphia and the walkable stretches of South Street and Penn's Landing have limited water access — an insulated bottle keeps drinks cold on long outdoor afternoons.

Spruce Street Harbor Park opens in May; it's a perfect Philadelphia spot to enjoy a 74°F afternoon in a hammock.

The 9th Street Italian Market Festival occurs in May; wear comfortable shoes for the crowded Philadelphia streets.

May is a peak month for outdoor dining in Philadelphia; many restaurants in Center City offer 'streeteries'.

Yes — average lows hit about 54°F, so plan on a light jacket or cardigan for mornings and evenings.
Expect roughly 11 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.
The 9th Street Italian Market Festival occurs in May; wear comfortable shoes for the crowded Philadelphia streets. See our full shoe picks for May: full shoe guide →
May is a peak month for outdoor dining in Philadelphia; many restaurants in Center City offer 'streeteries'.