August in San Antonio, TX: hot season for golf — play early; afternoons are oppressive. Best tee times: tee off before 8 AM to beat the heat.
| Average August Weather | |
|---|---|
| Avg daily high | 96°F |
| Avg daily low | 77°F |
| Rainy days | 12 / mo |
| Avg peak wind | 12.3 mph |
Heat is the one variable that defines golf in San Antonio in August. The average high sits at 96°F — tied with July as the hottest reading of the year — and the overnight low only retreats to 77°F, leaving a daily swing of just 19°F. That narrow range means the course never fully cools, and by mid-morning you're already playing in conditions that exceed the ideal 60–80°F comfort band by a wide margin.
The relative bright spots are real but limited. August is tied for the second-driest month of the year at 12 precipitation days, so prolonged rain delays are unlikely. Peak wind averages 12.3 mph, the fourth-calmest of any month, which keeps flags manageable. The trade-off is that calm air and relentless sun combine to make heat feel even more punishing. Early tee times are not just advisable — they're the only practical way to play.
Book the earliest available tee time — ideally at or just after 6 AM — because the 96°F average high arrives well before noon and conditions deteriorate quickly. Unlike shoulder months where a mid-morning start is acceptable, August's overnight low of 77°F means even dawn offers only limited relief, so every extra minute before 9 AM matters. See how conditions rate hour by hour on our playability scale.
August and July are effectively identical on paper — same 96°F average high, same 12 precipitation days, and a negligible 0.3 mph difference in peak wind — so moving between those two months changes nothing meaningful about conditions. September is where the calendar finally shifts: the average high drops 5°F to 91°F, precipitation days increase by three, and wind eases another 1.2 mph, making September the first month where heat begins to loosen its grip on the round.
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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August is the most heat-intensive month on the San Antonio golf calendar, with an average high of 96°F and an overnight low that only dips to 77°F. Conditions are playable if you tee off at dawn, but the window closes fast. Golfers who prefer comfortable rounds are better served waiting for October or November.
A 6 AM start gives you roughly two to three hours before temperatures climb well past 90°F on exposed courses. The average high of 96°F combined with a calm 12.3 mph wind means there's little breeze to offset the sun once it's up. Reserve afternoon rounds for fall or winter visits.