Oklahoma City · September
Run in the morning.
Average high is 86°F with a 68°F overnight low. Dry heat climbs fast after sunrise — get out in the cooler morning hours.
Avg high / low
86° / 68°F
Humidity
63%
Rain days
9/mo
Wind
12 mph
What September feels like in Oklahoma City
Sunrise
07:13
Mid-month average
Sunset
19:36
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 Oklahoma City in September
The kit for September in Oklahoma City: light, breathable, and moisture-wicking — singlet or short-sleeve only.
September vs the surrounding months
vs August
-6° avg high
-2 rain days
Oklahoma City in August →
September
86°F avg high
9 rain days
Best: morning
vs October
+13° avg high
-1 rain days
Oklahoma City in October →
Frequently Asked Questions
What is the best time of day to run in Oklahoma City in September?+
Morning. Dry heat climbs fast after sunrise — get out in the cooler morning hours.
What's the average temperature in Oklahoma City in September?+
Average high 86°F, average low 68°F.
How does September compare to surrounding months in Oklahoma City?+
Compared to August (avg high 91°F), September is cooler. Compared to October (avg high 73°F), September is warmer.
Does it rain often in Oklahoma City in September?+
Expect about 9 measurable rain days in September, on average.