December · United States
Best time to visit Philadelphia in December Weather, crowds & prices
Weather in Philadelphia in December
Average temperature 4°C, 96 mm of rain, about 18 days with 6+ hours of sunshine and 70% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
5.6/10
Ranked #12 of 12 months
- Avg temp
- 4°C
- Rainfall
- 96 mm
- Humidity
- 70%
- Days with 6h+ sun
- 18
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Philadelphia scores 5.6/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around 4°C, 96 mm of rain, and roughly 18 days with 6+ hours of sunshine this month.
Independence Hall history and mural-lined neighborhoods feel finest May through September.
December in Philadelphia: mixed conditions, plan around the weather
At 4°C (38°F) this is proper winter weather in December: layer up and split the day between outdoor highlights and indoor stops.
Budget for roughly 96 mm of rain this month — a flexible day or two helps — with about 18 days with 6+ hours of sunshine and 9.4 hours of daylight to work around it.
That is 5.6/10 on the same scale — 12th of 12 months, versus 8.5/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, October is materially better in Philadelphia — 2.9 points higher on the same scale.
Frequently asked
- What is the weather like in Philadelphia in December?
- In December, Philadelphia averages 4°C, 96 mm of rain, and about 18 days with 6+ hours of sunshine. Its climate-comfort score is 5.6/10.
- Is December a good time to visit Philadelphia?
- December earns a 5.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Philadelphia in December?
- Expect about 96 mm of rain in December. Average humidity is 70% and there are about 18 days with 6+ hours of sunshine.
Curated in Philadelphia
Tickets & experiences
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Philadelphia, United States. Live activities and tours from GetYourGuide, matched to this destination.