September in St. Simons Island, GA: variable for golf — mixed conditions — check the live score. Best tee times: morning before noon for the most comfortable round.
| Average September Weather | |
|---|---|
| Avg daily high | 83°F |
| Avg daily low | 72°F |
| Rainy days | 19 / mo |
| Avg peak wind | 13.3 mph |
Based on 10 years of climate data (2015–2024), September in St. Simons Island, GA averages 83°F highs and 72°F lows. Expect about 19 days with measurable precipitation and peak winds averaging 13.3 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 St. Simons Island in September, plan to morning before noon for the most comfortable round. 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 St. Simons Island, GA for the current playability rating, hourly wind, temperature, and the recommended tee time window.
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