Detroit · August
Run in the morning.
Comfortable average high of 80°F, dipping to 65°F at night. Humidity rises with the sun — morning runs catch the driest, coolest window.
Avg high / low
80° / 65°F
Humidity
72%
Rain days
15/mo
Wind
12 mph
What August feels like in Detroit
Sunrise
06:40
Mid-month average
Sunset
20:31
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Detroit in August
The kit for August in Detroit: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
August vs the surrounding months
vs July
-2° avg high
0 rain days
Detroit in July →
August
80°F avg high
15 rain days
Best: morning
vs September
+6° avg high
+1 rain days
Detroit in September →
Frequently Asked Questions
What is the best time of day to run in Detroit in August?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Detroit in August?+
Average high 80°F, average low 65°F.
How does August compare to surrounding months in Detroit?+
Compared to July (avg high 82°F), August is cooler. Compared to September (avg high 74°F), August is warmer.
Does it rain often in Detroit in August?+
Expect about 15 measurable rain days in August, on average.