Austin, Texas weather in May

Averages from 2021–2025 (155 days of record).

Average high: 86°F
Average low: 68°F
Rainy days: ~15 per month
Total precipitation: 8.4 in
Warmest recorded: 99°F
Coldest recorded: 56°F

Expect May days in Austin, Texas to top out around 86°F and cool to about 68°F overnight, with roughly 15 days of measurable rain across the month. In recent years May has ranged from 56°F to 99°F.

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Current Austin, Texas forecast → · Historical data by Open-Meteo (ERA5).