Philadelphia in September
Great time to visit
September delivers Philadelphia's second-best weather window - comfortable temperatures return without winter's bite. The summer crowds thin slightly, but it's still busy enough that you'll want to book popular restaurants ahead.
Weather
September brings blessed relief from summer's heat with comfortable temperatures and lower humidity. Crisp mornings give way to warm afternoons perfect for walking. Rain becomes less frequent, and the first hints of fall color appear in Fairmount Park.
25°C high16°C low7 rain days
Crowds & Cost
high crowds
~$175/day average
Events & Festivals
- •Oktoberfest celebrations
- •Philadelphia Fringe Festival
- •Eagles football season begins
September Tips
- •Pack layers - mornings can be cool while afternoons stay warm
- •This is prime weather for the Schuylkill River Trail and Kelly Drive
- •Eagles games make the city electric but also more expensive on game weekends
All Months
Spring hits Philadelphia perfectly. April and May bring mild temperatures in the 60s-70s and blooming cherry blossoms around the city. The crowds haven't arrived yet, and hotel prices stay reasonable. Summer gets hot and humid — July averages 85°F with sticky air that makes walking around Old City feel like a slog. But the outdoor festivals and concerts make up for the sweat. The Made in America festival takes over the Benjamin Franklin Parkway each September. Fall delivers the best weather. September and October offer crisp days perfect for walking the city, plus the changing leaves in Fairmount Park create actual scenery. Winter? It's cold and gray, but hotel prices drop 30-40%. The Christmas markets and holiday decorations downtown create some charm, and you'll have the museums mostly to yourself. Just pack layers — January temperatures hover around 40°F during the day, dropping to the 20s at night.
Philadelphia Scores
Solo
8/10
Couples
6/10
Families
9/10
Adventure
4/10
Budget
7/10
Luxury
6/10
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