September in San Antonio, TX: variable for golf — mixed conditions — check the live score. Best tee times: tee off before 8 AM to beat the heat.
| Average September Weather | |
|---|---|
| Avg daily high | 91°F |
| Avg daily low | 73°F |
| Rainy days | 15 / mo |
| Avg peak wind | 11.1 mph |
Based on 10 years of climate data (2015–2024), September in San Antonio, TX averages 91°F highs and 73°F lows. Expect about 15 days with measurable precipitation and peak winds averaging 11.1 mph. Our playability scoring treats wind under 8 mph as ideal, temperatures of 60–80°F as optimal, and rain probability below 20% as a green light — use these averages to gauge how often September hits those thresholds.
For San Antonio in September, plan to tee off before 8 AM to beat the heat. Wind typically rises through the afternoon as thermal mixing builds, so earlier rounds tend to score higher on our playability scale.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for San Antonio, TX for the current playability rating, hourly wind, temperature, and the recommended tee time window.
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