Will I need a jacket in Philadelphia in December?

Yes — average lows hit about 29°F, so plan on a heavy coat with insulated layers.

Is December rainy in Philadelphia?

Expect roughly 10 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.

How should I layer for Philadelphia in December?

With a daily range of about 29°F–45°F, plan on layers you can add or shed: a base layer, a mid-weight top, and an outer layer for the cool ends of the day.

What to Pack for Philadelphia in December — 2026 Packing List

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Clothing

Philadelphia's 45°F highs can feel much colder when the wind blows through the city; a down parka is essential for December.
With lows of 29°F and 10 days of precipitation, keeping your core warm is vital for exploring Philadelphia's outdoor markets.
A great mid-layer for Philadelphia's wintry 45°F days that can be easily removed when you step into a heated museum.
Philadelphia's 29°F December nights require thick fabrics like wool blends or heavy denim for comfort.

Footwear

With 10 days of potential snow or rain in December, waterproof boots are needed for Philadelphia's slushy historic streets.
Keep your feet warm during Philadelphia's 29°F nights, especially when standing outdoors for holiday light shows.
Essential for Philadelphia's icy cobblestones in December, where 10 days of precipitation can create slippery conditions.

Accessories

Protect your hands from the 29°F December cold while navigating Philadelphia's Center City or holiday villages.
A warm hat is a must for any Philadelphia December visit, as temperatures rarely rise above 45°F.
An extra layer of protection against the biting 29°F winds found near Philadelphia's City Hall and open plazas.

Gear

Disposable or rechargeable hand warmers are a lifesaver for Philadelphia's outdoor holiday events in 29°F weather.
With 10 days of precipitation in December, a wind-resistant umbrella is needed for Philadelphia's mixed winter weather.
December brings 10 rainy days to Philadelphia, and the cobblestone streets of Old City become slick after rain — a compact umbrella prevents getting caught wet near Independence Hall during holiday visits.

Local tips for Philadelphia in December

The Deck the Hall Light Show at City Hall is a spectacular Philadelphia tradition; dress for 29°F and potential slush.

Visit the Boathouse Row lights in Philadelphia, but be prepared for very cold winds off the Schuylkill River in December.

Franklin Square's holiday light show and winter beer garden are great, but the 45°F temperatures require full winter gear.

FAQ — Philadelphia in December

Yes — average lows hit about 29°F, so plan on a heavy coat with insulated layers.
Expect roughly 10 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.
With a daily range of about 29°F–45°F, plan on layers you can add or shed: a base layer, a mid-weight top, and an outer layer for the cool ends of the day.

December Packing List for Philadelphia — What to Wear & Bring