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Dallas weather in September 2025
Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Dallas in September. Check more long-term weather averages for Dallas in September before you book your next holiday to Texas in 2025/2026.
- 3131°C max day temperature
- 8 hours of sunshine per day
- 77 days with some rainfall
- 2020°C min night temperature
- 1212 hours of daylight per day
- HHigh heat & humidity
- 8383 mm of monthly rainfall
- 88 (Very High) UV index
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Recommended for Texas
The September weather guide for Texas (Dallas) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Dallas in September?
Daytime temperatures usually reach 31°C in Dallas in September with high heat and humidity, falling to 20°C at night.
How sunny is it in Dallas in September?
There are normally 8 hours of bright sunshine each day in Dallas in September - that's 66% of daylight hours.
Does it rain in Dallas in September?
There are usually 7 days with some rain in Dallas in September and the average monthly rainfall is 83mm.
What is the chance of a hurricane in Dallas in September?
On average less than 1 day in September in Dallas is likely to be affected by the passage of one or more tropical storms.
Dallas September sunrise & sunset times
Browse the sunrise and sunset times for Dallas in September 2025. Select a month to view Dallas sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 06:02 | 18:51 |
Monday, 15th September 2025 | 06:11 | 18:33 |
Tuesday, 30th September 2025 | 06:21 | 18:13 |
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