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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.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Philadelphia's climate page.

Philadelphia Temperature in August

Min TemperatureMin Temperature 21°C (70°F)  
Max TemperatureMax Temperature 33°C (91°F)  
Chance of RainChance of Rain 40%  
PrecipitationPrecipitation 129 mm (5.1 in)  
Rainy daysRainy days 12 days  

Best Places in the United States of America in August

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Philadelphia in August

Pack for serious heat in Philadelphia in August. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Philadelphia in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Philadelphia's climate page.

More climate data for Philadelphia