Oklahoma City in September
In September, Oklahoma City averages 30°C (86°F) during the day and 20°C (68°F) at night, with around 6 days of rain (82 mm total).
ShoulderConditions are warm and beach-friendly. Occasional showers are likely but won't dominate.
It's peak hurricane season in Oklahoma City during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How September compares to the rest of the year in Oklahoma City
September is in the middle of the year for warmth in Oklahoma City (4th of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 8°C above the annual average (23°C). September runs 3°C cooler than August (33°C) and cools 7°C in October (24°C).
September sunrise & sunset in Oklahoma City
Times shown for Oklahoma City local time (America/Chicago), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Oklahoma City — September
Golden-hour and blue-hour windows for the 15th of September, in Oklahoma City's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Oklahoma City in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Oklahoma City's popularity.
Crowds & pricing — September in Oklahoma City
Oklahoma City is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather peak hazard season (1 active)
Sun & mosquito risk — September in Oklahoma City
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Oklahoma City in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 10°C / 51°F | 0°C / 32°F | 35 mm | 4 | — |
| February | 12°C / 53°F | 0°C / 33°F | 47 mm | 6 | — |
| March | 19°C / 65°F | 7°C / 44°F | 73 mm | 8 | — |
| April | 23°C / 73°F | 11°C / 51°F | 103 mm | 9 | — |
| May | 27°C / 80°F | 16°C / 61°F | 135 mm | 13 | — |
| June | 32°C / 89°F | 21°C / 71°F | 99 mm | 9 | — |
| July | 34°C / 93°F | 24°C / 75°F | 73 mm | 8 | — |
| August | 33°C / 92°F | 23°C / 74°F | 58 mm | 7 | — |
| September | 30°C / 86°F | 20°C / 68°F | 82 mm | 6 | — |
| October | 24°C / 74°F | 13°C / 56°F | 91 mm | 7 | — |
| November | 16°C / 61°F | 6°C / 43°F | 46 mm | 5 | — |
| December | 12°C / 54°F | 3°C / 37°F | 44 mm | 5 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Oklahoma City in September →
Frequently asked questions
How hot is Oklahoma City in September?
In September, Oklahoma City averages a high of 30°C (86°F) and a low of 20°C (68°F) — generally hot.
Does it rain a lot in Oklahoma City in September?
September sees occasional rain in Oklahoma City, with about 6 rainy days on average.
Is September a good time to visit Oklahoma City?
September is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Oklahoma City in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full September packing list for Oklahoma City for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.