Climate guide for Philadelphia, United States

Philadelphia in August

Weather, crowds & best time to visit

How to read the score (0–10)
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August · United States

Best time to visit Philadelphia in August Weather, crowds & prices

Weather in Philadelphia in August

Average temperature 24°C, 107 mm of rain, about 26 days with 6+ hours of sunshine and 68% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

August score

7.2/10

Ranked #7 of 12 months

Full year for Philadelphia
Avg temp
24°C
Rainfall
107 mm
Humidity
68%
Days with 6h+ sun
26
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

August in Philadelphia scores 7.2/10 for sightseeing and cultural travel - ranked #7 of 12. Expect around 24°C, 107 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.

Independence Hall history and mural-lined neighborhoods feel finest May through September.

August in Philadelphia: strong conditions, 7th of 12

At 24°C (76°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.

107 mm of rain makes this a wet month here, though with about 26 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.2/10 on the same scale — 7th of 12 months, versus 8.5/10 for the best month here.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

Budget for mid-season pricing, and crowds are moderate.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Philadelphia in August?
In August, Philadelphia averages 24°C, 107 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 7.2/10.
Is August a good time to visit Philadelphia?
August earns a 7.2/10 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 August?
Expect about 107 mm of rain in August. Average humidity is 68% and there are about 26 days with 6+ hours of sunshine.

Curated in Philadelphia

Tickets & experiences

Things to do in Philadelphia

Philadelphia, United States. Live activities and tours from GetYourGuide, matched to this destination.