Weather in Austin in September
In an average September, Austin sees a daily high around 90°F and a low around 71°F, based on 1980–2026 of local climate records.
| Average high | 90°F |
|---|---|
| Typical high range | 83°F to 96°F |
| Average low | 71°F |
| Typical low range | 64°F to 76°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
108°F
2000-09-04
Lowest
63°F
1985-09-30
Low
Highest
83°F
2020-09-01
Lowest
46°F
1983-09-22
Feels-like
Highest
138°F
2023-09-24
Lowest
43°F
1983-09-22
Humidity
Highest
23.4 g/m³
2018-09-21
Lowest
5.2 g/m³
2011-09-06
Wind
Highest
24 mph
1998-09-11
Lowest
4 mph
2007-09-03
Gust
Highest
48 mph
1998-09-11
Lowest
9 mph
2017-09-01
Precip
Wettest
10.49 in
2018
Driest
0.12 in
2008
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