Philadelphia Weather in August
30°C high · 18.8°C low · 110 mm rain · 8.3h sun
Aug is a warm month in Philadelphia — not peak season, but a good time to avoid crowds.
August at a glance
| Metric | Value |
|---|---|
| Average high | 30°C |
| Average low | 18.8°C |
| Rainfall | 110 mm |
| Sunshine | 8.3 hours/day |
| Daylight | 13.6 hours |
What to pack in August
Pack comfortable clothes with a light layer for evenings, plus a raincoat and umbrella for Philadelphia in August.
Philadelphia weather by month
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Frequently asked questions
What is the weather in Philadelphia in August?
Highs of 30°C and lows of 18.8°C, with about 110 mm of rain and 8.3 hours of sunshine per day.
Is August a good time to visit Philadelphia?
Aug is a warm month in Philadelphia — not peak season, but a good time to avoid crowds.
What to do in Philadelphia · Best time to visit Philadelphia
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.