Oklahoma City in September
Great time to visit
September marks the return of pleasant weather and the beginning of Oklahoma's best season. The State Fair draws crowds, but the weather makes everything enjoyable again.
Weather
September brings blessed relief as temperatures drop into the 80s and humidity decreases. Afternoon thunderstorms become less frequent, and crisp mornings hint at fall. The oppressive heat finally breaks.
30°C high18°C low7 rain days
Crowds & Cost
moderate crowds
~$115/day average
Events & Festivals
- •State Fair of Oklahoma begins
- •OU football season kicks off
- •Arts Council events resume
September Tips
- •State Fair runs late September through October - book hotels early
- •College football creates weekend crowds and higher prices
- •September is perfect for outdoor dining and river walks
All Months
Spring and fall offer the best weather window. April through May brings wildflowers and mild temperatures in the 70s. September through November delivers crisp mornings and comfortable afternoons without the summer heat.
Summer gets brutal. July and August regularly hit 100°F with humidity that makes it feel even hotter. If you visit between June and August, plan indoor activities for midday and save outdoor exploration for early morning or evening.
Winter stays relatively mild compared to northern cities, but ice storms can shut things down unexpectedly. January temperatures hover in the 40s, but when weather systems collide over Oklahoma, they create memorable conditions.
Event timing matters too. The Oklahoma State Fair runs late September, bringing crowds and higher hotel rates. Thunder basketball season (October through April) means downtown gets busier on game nights. The Red Earth Festival in June showcases Native American culture but coincides with peak heat.
Oklahoma City Scores
Solo
6/10
Couples
5/10
Families
8/10
Adventure
4/10
Budget
8/10
Luxury
5/10
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