Monthly climate guide
Tulsa weather in September
Expect hot weather in Tulsa in September: afternoons reach about 31°C (87°F), while nights drop to around 18°C (65°F). Around 81 mm of rain falls over the month (some rain), and skies are a mix of sun and cloud. Daytime highs are 3°C cooler than August and 7°C warmer than October.
What stands out in September
- Skies are at their clearest this time of year.
- September brings early autumn to Tulsa.
- Afternoons and nights feel like different seasons, roughly 13°C apart.
- It cools down fast from here: October is about 7°C cooler.
Avg high
31°C
87°F
Avg low
18°C
65°F
Rainfall
81 mm
some rain
Humidity
65%
relative
Sky
41%
cloud · a mix of sun and cloud
Tulsa weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 9°C / 47°F | -2°C / 28°F | 39 mm | 74% | 50% |
| February | 11°C / 51°F | -1°C / 31°F | 49 mm | 75% | 58% |
| March | 17°C / 63°F | 5°C / 40°F | 73 mm | 73% | 57% |
| April | 22°C / 71°F | 9°C / 49°F | 120 mm | 72% | 58% |
| May | 26°C / 79°F | 15°C / 59°F | 156 mm | 76% | 57% |
| June | 32°C / 89°F | 21°C / 69°F | 86 mm | 71% | 44% |
| July | 35°C / 95°F | 23°C / 74°F | 96 mm | 64% | 44% |
| August | 34°C / 93°F | 22°C / 71°F | 100 mm | 64% | 45% |
| September | 31°C / 87°F | 18°C / 65°F | 81 mm | 65% | 41% |
| October | 23°C / 74°F | 10°C / 51°F | 95 mm | 68% | 44% |
| November | 16°C / 61°F | 4°C / 39°F | 58 mm | 72% | 46% |
| December | 10°C / 50°F | -1°C / 31°F | 55 mm | 77% | 57% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is September a good time to visit Tulsa?
Compare the months in the chart above to find your ideal window.
Best time to visit Tulsa →Other United States cities in September
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Tulsa weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/tulsa/september
<a href="https://weathercompare.eu/weather/usa/tulsa/september">Tulsa weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/tulsa" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Tulsa weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/tulsa/september">Tulsa weather in September</a> – WeatherCompare</p>
Tulsa in September: quick answers
Is September a good time to visit Tulsa?
September is a reasonable time for Tulsa: highs around 31°C and about 81 mm of rain, though not one of the three best months.
How warm is Tulsa in September?
Average highs are about 31°C (87°F) and average lows about 18°C (65°F), based on 10 years of daily data.
Does it rain a lot in Tulsa in September?
Tulsa typically gets around 81 mm of rain in September — some rain.
Figures are long-term averages for the area around Tulsa (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.