Monthly climate guide
Fort Worth weather in September
With highs near 33°C (91°F) and lows around 21°C (69°F), September feels very hot in Fort Worth. Rainfall averages about 71 mm (some rain) and the sky is a mix of sun and cloud. Daytime highs are 4°C cooler than August and 6°C warmer than October.
What stands out in September
- Seasonally, September counts as early autumn in Fort Worth.
- Afternoons and nights feel like different seasons, roughly 12°C apart.
- Fort Worth is usually about 3°C warmer than Oklahoma City, 310 km away, in September.
- Temperatures are falling — expect highs around 6°C lower by October.
Avg high
33°C
91°F
Avg low
21°C
69°F
Rainfall
71 mm
some rain
Humidity
61%
relative
Sky
39%
cloud · a mix of sun and cloud
Fort Worth weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 14°C / 56°F | 1°C / 34°F | 56 mm | 72% | 46% |
| February | 16°C / 61°F | 3°C / 38°F | 58 mm | 73% | 55% |
| March | 21°C / 71°F | 8°C / 47°F | 65 mm | 71% | 53% |
| April | 26°C / 78°F | 12°C / 54°F | 83 mm | 68% | 51% |
| May | 29°C / 85°F | 17°C / 63°F | 129 mm | 70% | 53% |
| June | 34°C / 93°F | 22°C / 72°F | 91 mm | 67% | 41% |
| July | 37°C / 98°F | 24°C / 75°F | 45 mm | 58% | 37% |
| August | 37°C / 98°F | 24°C / 76°F | 61 mm | 55% | 37% |
| September | 33°C / 91°F | 21°C / 69°F | 71 mm | 61% | 39% |
| October | 27°C / 80°F | 14°C / 56°F | 106 mm | 65% | 37% |
| November | 20°C / 67°F | 7°C / 45°F | 58 mm | 70% | 44% |
| December | 15°C / 58°F | 3°C / 37°F | 57 mm | 73% | 56% |
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
- Sunglasses
Is September a good time to visit Fort Worth?
Compare the months in the chart above to find your ideal window.
Best time to visit Fort Worth →Other United States cities in September
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Fort Worth weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/fort-worth/september
<a href="https://weathercompare.eu/weather/usa/fort-worth/september">Fort Worth weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/fort-worth" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Fort Worth weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/fort-worth/september">Fort Worth weather in September</a> – WeatherCompare</p>
Fort Worth in September: quick answers
Is September a good time to visit Fort Worth?
It can be, if you like heat: September highs in Fort Worth are around 33°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Fort Worth in September?
Average highs are about 33°C (91°F) and average lows about 21°C (69°F), based on 10 years of daily data.
Does it rain a lot in Fort Worth in September?
Fort Worth typically gets around 71 mm of rain in September — some rain.
Figures are long-term averages for the area around Fort Worth (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.