Philadelphia · July
Run in the pre-dawn.
Average high is 87°F with a 70°F overnight low. Expect 18 rain days — plan around the radar. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
Avg high / low
87° / 70°F
Humidity
70%
Rain days
18/mo
Wind
10 mph
What July feels like in Philadelphia
Sunrise
05:46
Mid-month average
Sunset
20:26
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Heat peaks here. Skip unless you've got shade and pace tolerance.
Evening
Cools off after sunset but still warm. Good for easy efforts; avoid hard intervals if you're chasing pace.
What to wear running in Philadelphia in July
The kit for July in Philadelphia: light, breathable, and moisture-wicking — singlet or short-sleeve only, a water-resistant cap or jacket on standby.
July vs the surrounding months
vs June
+6° avg high
+3 rain days
Philadelphia in June →
July
87°F avg high
18 rain days
Best: pre-dawn
vs August
+2° avg high
+2 rain days
Philadelphia in August →
Frequently Asked Questions
What is the best time of day to run in Philadelphia in July?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in Philadelphia in July?+
Average high 87°F, average low 70°F.
How does July compare to surrounding months in Philadelphia?+
Compared to June (avg high 81°F), July is warmer. Compared to August (avg high 85°F), July is warmer.
Does it rain often in Philadelphia in July?+
Expect about 18 measurable rain days in July, on average.