Pack or skip
Insect repellent for Austin in September
Verdict
Pack it
Warm (90°F) plus 7 rainy days = mosquito conditions.
Why
Austin in September averages highs of 90°F, lows of 69°F, 7 rainy days.
That climate means insect repellent earns its space in the bag. Warm (90°F) plus 7 rainy days = mosquito conditions.