September is a good month at Congaree — it ranks 8th of the twelve here. Expect about 42% fewer visitors than May, the park's peak — 16,974 visits on average. Days run around 86°F by afternoon and 67°F at night, with 12.3 hours of daylight.
September against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| September (this page) | Good | 16,974 | −42% | 86°F | 67°F | — | 12.3 h |
| January (best) | Excellent | 13,877 | −52% | 57°F | 37°F | — | 10.1 h |
| May (peak crowds) | Good | 29,060 | peak | 84°F | 62°F | — | 13.9 h |
Weather figures are for the Harry Hampton Visitor Center area — the Columbia Owens Dwtn AP station. Visits are 2021–2025 averages; climate normals cover 1991–2020. Conditions vary across the park; check current status before you go.
Common questions
Is September a good time to visit Congaree?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. September ranks 8 of 12 at Congaree on crowds, weather, daylight, and access together.
How crowded is Congaree in September?
About 16,974 recreation visits on average — 42% below May, the park's peak.
How warm is Congaree in September?
Average highs around 86°F and lows around 67°F at the Columbia Owens Dwtn AP station.
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