Dallas · August
Run in the morning.
Average high is 94°F with a 78°F overnight low. Dry heat climbs fast after sunrise — get out in the cooler morning hours.
Avg high / low
94° / 78°F
Humidity
60%
Rain days
11/mo
Wind
12 mph
What August feels like in Dallas
Sunrise
06:51
Mid-month average
Sunset
20:10
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 Dallas in August
The kit for August in Dallas: light, breathable, and moisture-wicking — singlet or short-sleeve only.
August vs the surrounding months
vs July
-1° avg high
0 rain days
Dallas in July →
August
94°F avg high
11 rain days
Best: morning
vs September
+5° avg high
-1 rain days
Dallas in September →
Frequently Asked Questions
What is the best time of day to run in Dallas in August?+
Morning. Dry heat climbs fast after sunrise — get out in the cooler morning hours.
What's the average temperature in Dallas in August?+
Average high 94°F, average low 78°F.
How does August compare to surrounding months in Dallas?+
Compared to July (avg high 95°F), August is cooler. Compared to September (avg high 89°F), August is warmer.
Does it rain often in Dallas in August?+
Expect about 11 measurable rain days in August, on average.