Philadelphia Weather in August

August in Philadelphia brings very high temperatures around 33°C (91°F) during the day, dropping to 21°C (70°F) at night, with quite a bit of rainfall expected, averaging around 129 mm (5.1 in) for the month.

Rainfall in Philadelphia in August

You can typically expect 12 days of rain this month, averaging around 129 mm (5.1 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Philadelphia in August

August in Philadelphia brings typical temperatures with highs around 33°C (91°F) and lows of 21°C (70°F). For most visitors, the main thing to prepare for is the heat during the day. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing. Average temperatures can be deceiving; some days will be hotter. Wear breathable fabrics and drink plenty of water to stay cool.

August in Philadelphia has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.