Philadelphia weather in July
July in Philadelphia: sweltering, rainy — a good time to visit.
#9 of 12 months in Philadelphia · #416 of 604 destinations to visit in July · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Philadelphia climate normals — July
| Daytime high | 31°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 129 mm / 5.1 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 12 h/day | |
| Daylight | 14.7 h | |
| Wind | 14 km/h / 8 mph | |
| Air quality (US AQI) | 74 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Philadelphia in July — FAQ
- Is July a good time to visit Philadelphia?
- July in Philadelphia: sweltering, rainy — a good time to visit. It ranks #9 of 12 months for Philadelphia on SeasonMap's comfort score (68/100).
- What is the weather like in Philadelphia in July?
- In July, Philadelphia averages a daily high of 30.5°C and a low of 21.7°C, with about 129.3 mm of rain over roughly 14.6 rainy days.
- What is the air quality in Philadelphia in July?
- Philadelphia has a mean US Air Quality Index of about 74 in July.