Phoenix · July
Run in the pre-dawn.
Average highs hit 106°F. July is the hottest stretch of the year. Dry air (31% humidity) makes the heat more bearable than the numbers suggest. Heat builds fast after sunrise — the pre-dawn hour is the only reliably comfortable window.
Avg high / low
106° / 84°F
Humidity
31%
Rain days
9/mo
Wind
13 mph
What July feels like in Phoenix
Sunrise
05:30
Mid-month average
Sunset
19:37
Mid-month average
Time-of-day breakdown
Morning
Cool relative to the day's peak, but heat builds fast. By 10 AM you're already chasing comfort.
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 Phoenix in July
The kit for July in Phoenix: light, breathable, and moisture-wicking — singlet or short-sleeve only.
July vs the surrounding months
vs June
+1° avg high
+8 rain days
Phoenix in June →
July
106°F avg high
9 rain days
Best: pre-dawn
vs August
+2° avg high
+1 rain days
Phoenix in August →
Frequently Asked Questions
What is the best time of day to run in Phoenix in July?+
Pre-dawn. Heat builds fast after sunrise — the pre-dawn hour is the only reliably comfortable window.
What's the average temperature in Phoenix in July?+
Average high 106°F, average low 84°F.
How does July compare to surrounding months in Phoenix?+
Compared to June (avg high 105°F), July is warmer. Compared to August (avg high 103°F), July is warmer.
Does it rain often in Phoenix in July?+
Expect about 9 measurable rain days in July, on average.