September in Philadelphia, PA: shoulder season for golf — playable with smart tee time selection. Best tee times: mid-morning through early afternoon.
| Average September Weather | |
|---|---|
| Avg daily high | 78°F |
| Avg daily low | 61°F |
| Rainy days | 13 / mo |
| Avg peak wind | 10.7 mph |
September shifts the tee-sheet calculus in Philadelphia. August's 18 precipitation days made morning rain delays a genuine scheduling hazard, but that number drops to 13 in September — still the third-wettest month of the year, tied with March, May, June, and December, so don't ignore the forecast entirely. Temperatures land in a comfortable range, with a daily high of 78°F and a low of 61°F, both sitting inside or just above the ideal 60–80°F window. Wind peaks at 10.7 mph, the second-calmest reading of any month.
What actually changes in September is demand. Summer rounds wane, school schedules clear weekend mornings, and twilight tee times start shrinking as daylight pulls back. That combination means savvy players can access primo slots — early Saturday tee times especially — without the July scramble. The 17°F daily swing does require a mid-round layer in the bag, but conditions from roughly 9 AM through 4 PM are reliably playable most days.
Book Saturday and Sunday tee times in the 8–10 AM window as soon as the booking window opens — post-summer demand drops noticeably but doesn't disappear, and the best slots still go within the first day or two of release. Midweek afternoons open up considerably compared to July and August, so if your schedule is flexible, a Tuesday or Wednesday 1 PM slot can often be grabbed last-minute at reduced rates. See how conditions rate hour by hour on our playability scale.
September represents a meaningful improvement over August: five fewer precipitation days (13 vs. 18) and a cooler, more comfortable average high of 78°F versus August's 86°F, though the wind ticks up a negligible 0.4 mph. Moving into October, precipitation eases only slightly to 11 days, but the average high drops a sharper 10°F to 68°F and lows fall to 51°F, making October the colder tradeoff for drier conditions. September therefore sits at the practical sweet spot — less rain than August, warmer than October, and wind nearly identical to both neighbors.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for Philadelphia, PA for the current playability rating, hourly wind, temperature, and the recommended tee time window.
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September is one of the more playable months on the calendar here, with an average high of 78°F and peak wind of 10.7 mph — the second-calmest reading of the year. The main caveat is precipitation: 13 rain days still make it the third-wettest month, so morning tee times reduce your exposure compared to afternoons.
Rounds drop off from the summer peak once Labor Day passes, which opens up tee-sheet availability that was scarce in July and August. Weekend mornings still see solid demand, but midweek slots and twilight rounds become noticeably easier to book, sometimes at lower rates as operators look to fill afternoon inventory.