August in Philadelphia, PA: variable for golf — mixed conditions — check the live score. Best tee times: morning before noon for the most comfortable round.
| Average August Weather | |
|---|---|
| Avg daily high | 86°F |
| Avg daily low | 69°F |
| Rainy days | 18 / mo |
| Avg peak wind | 10.3 mph |
An 86°F average high sounds manageable until you factor in Philadelphia's August humidity. The combination pushes afternoon rounds into genuinely uncomfortable territory, and the 17°F daily swing matters: morning tee times starting near the 69°F low feel almost forgiving, but by the time you reach the back nine at midday, conditions have shifted enough to affect club selection. The 18 precip days — tied for the most of any month — don't mean 18 soggy washouts, but they do mean convective afternoon storms are a near-daily threat. The upside: peak wind sits at just 10.3 mph, the calmest reading all year, so when conditions are good, the ball flies true and distances run long in the warm air. On a dry August morning in Philadelphia, that wind calm makes for favorable ball flight on approach shots.
Book the earliest available tee time — 6 AM if the course allows — because afternoon thunderstorms can develop and the heat index climbs fast once the sun clears the tree lines. Midweek morning slots also tend to have less wait on the tee, which keeps you moving before the humidity peaks. See how conditions rate hour by hour on our playability scale.
August and July are statistically identical in precipitation (18 days each) and peak wind (10.3 mph), but August's 3°F cooler high offers a marginal improvement in afternoon playability. The real shift comes in September, which drops 8°F in average high to 78°F and loses five precip days — making it a noticeably more consistent month for scoring conditions in the Philadelphia area.
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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The average high of 86°F is the second hottest of the year, and combined with typical mid-Atlantic humidity, afternoon rounds can feel significantly hotter than the thermometer reads. Morning rounds starting near the 69°F low are considerably more comfortable, and that 17°F daily swing means the difference between an early tee time and a midday one is substantial. Planning around the cooler morning window is the most practical way to keep August rounds playable.
August ties July for the highest number of precipitation days at 18, meaning more than half of August days average some precipitation — much of it from convective storms that build in the afternoon heat. Most courses in the Philadelphia area will suspend play for lightning, so a mid-round delay is a realistic possibility if you start after 10 AM. Booking early tee times and watching the radar before you leave the house are the most practical ways to protect your round.