Early autumn · Weather & things to do
Austin in September
Austin cools off: highs slip to 90°F (32°C), from 98°F in August, with lows of 69°F (21°C) and about 3.4 in (87 mm) of rain.
Our comfort score puts it mid-table at 69/100, 8th of 12.
- Avg high
- 90°F (32°C)
- Avg low
- 69°F (21°C)
- Rain
- 3.4 in (87 mm)
- Humidity
- 67%
- Cloud cover
- 44%
- Daylight
- ~12 h 10 min
- Comfort score
- 69/100 · Good
What September feels like
Afternoons run hot at about 90°F (32°C), which leaves mornings and evenings as the time for walking.
Lows average 69°F (21°C).
Showers are part of the month, adding up to about 3.4 in (87 mm).
Plan around September
September sits mid-table; the best months are February – April and October – December.
- Comfort improves from 57/100 in August to 69/100.
- Our Texas BBQ Trail route recommends Oct – Apr, so September falls outside its suggested window.
What to pack for September
- Light, breathable clotheshighs average 90°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- Packable rain jacket or umbrellaabout 3.4 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Austin in September
Afternoons run hot (90°F), so these picks mix early-start outdoor spots with cool indoor breaks.
The Continental Club
South Congress music bar since 1955 with live country, rockabilly and blues.
Why now A break from 90°F afternoons.
la Barbecue
East Austin pit known for brisket, beef ribs and house sausage, with shorter lines than Franklin.
Why now Somewhere to sit out the hottest hours.
Broken Spoke
Classic honky-tonk dance hall with two-step lessons and chicken-fried steak.
South Congress Avenue
Shopping strip with boots, vintage and the 'I love you so much' mural.
Franklin Barbecue
Austin's most famous brisket, worth the morning line.
Nearby in September
- Texas Hill Country in September~55 mi · highs 88°F, 3.4 in rain · 1°C (2°F) cooler by day, about as wet
- San Antonio in September~74 mi · highs 90°F, 3.7 in rain · similar daytime temperatures, about as wet
- Downtown Houston in September~146 mi · highs 89°F, 4.6 in rain · similar daytime temperatures, wetter
- Dallas in September~182 mi · highs 90°F, 3.0 in rain · similar daytime temperatures, about as wet
These averages also cover Downtown Austin & Lady Bird Lake and Zilker Park & Barton Springs.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Austin in September: quick answers
Is September a good time to visit Austin?
It's middling, scoring 69/100. The best months are February – April and October – December, at up to 92. Expect highs of 90°F (32°C) and 3.4 in (87 mm) of rain. Our Texas BBQ Trail route recommends Oct – Apr, so September is outside its suggested window.
How hot is Austin in September?
Average highs are 90°F (32°C) and average lows 69°F (21°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Austin in September?
Some: about 3.4 in (87 mm) of rain falls across September on average, the 3rd-wettest month of the year. The annual total is about 33.1 in (841 mm).
What should I pack for Austin in September?
Bring light, breathable clothes (highs average 90°F), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), packable rain jacket or umbrella (about 3.4 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Austin in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.