September in Green Bay, WI: shoulder season for golf — playable with smart tee time selection. Best tee times: mid-morning through early afternoon.
| Average September Weather | |
|---|---|
| Avg daily high | 73°F |
| Avg daily low | 56°F |
| Rainy days | 12 / mo |
| Avg peak wind | 11.3 mph |
September sits in a useful gap between Green Bay's warmest summer golf and the cold slide of October. Highs average 73F with lows at 56F — a 17-degree daily swing that means morning rounds call for an extra layer, but by early afternoon the conditions are genuinely comfortable. At 12 precipitation days, it's the third-driest month of the year, and the 11.3 mph peak wind makes it the fourth-calmest. That combination puts golf in Green Bay in September firmly in shoulder-season territory, but with statistics that lean toward the better end of it.
The main thing to manage is that temperature gap. Early tee times can feel 15 degrees cooler than they will at the turn. Plan accordingly and September rewards you with some of the most playable conditions of the calendar year before the autumn deterioration sets in fast.
With lows at 56F, early morning rounds before 8 AM can feel genuinely cool — booking a mid-morning tee time around 9-10 AM captures the warmest part of the day without surrendering a full afternoon. September's drier-than-August pattern also means last-minute bookings carry less weather risk than they would heading into October. See how conditions rate hour by hour on our playability scale.
Coming out of August, you lose 7 degrees of average high and gain half a mph of wind, but you also shed 2 precipitation days — so September is actually drier than the month you're leaving behind. Heading into October is a sharper transition: the average high drops another 13 degrees to 60F, lows fall to 44F, and wind climbs to 12.6 mph, while precip days tick back up by one. September essentially sits as the cleaner side of that divide, closer to summer in feel but without August's heavier rain schedule.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for Green Bay, WI for the current playability rating, hourly wind, temperature, and the recommended tee time window.
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Yes, by most measurable standards. With an average high of 73F, only 12 precipitation days, and peak winds of 11.3 mph, September is the third-driest and fourth-calmest month of the year in Green Bay. The main caveat is the 17-degree daily swing, so morning rounds require planning for cooler temperatures than the afternoon will deliver.
Lows average 56F in September, which is cool but manageable for most golfers with a light jacket or vest. That said, temperatures on exposed fairways with any wind can feel closer to the low end early in the day, and the season transitions quickly — October lows drop to 44F — so late-month mornings can already hint at that coming chill.