‹ Philadelphia weather by month
Typical August weather
Philadelphia
Pennsylvania · August
86° days
68° nights
about 6 rainy days · 13½ hours of daylight
What to pack
- Swimsuit
- Sunscreen
What August feels like
August is when Philadelphians who can leave, leave — mostly for the Jersey Shore, a two-hour drive that takes four on a Friday. Whoever stays gets thin museum crowds and thunderstorms that arrive fast and hard in the late afternoon.
Expect about 6 days with real rain — enough to notice, not enough to plan around. There’s a little humidity in the air, but nothing that changes your plans. about 8 afternoons top 90°.
The numbers
| Typical high | 86° |
|---|---|
| Typical low | 68° |
| Days with real rain | 6 |
| Total rain | 4.3 in |
| Humidity | a touch humid |
| Sunrise / sunset (mid-month) | 6:12 am / 7:57 pm |