September is a good month at Virgin Islands — it ranks first of the twelve here. Expect about 66% fewer visitors than March, the park's peak — 13,653 visits on average. Days run around 89°F by afternoon and 80°F at night, with 12.2 hours of daylight.
September against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| September (this page) | Good | 13,653 | −66% | 89°F | 80°F | — | 12.2 h |
| March (peak crowds) | Good | 39,813 | peak | 85°F | 74°F | — | 12 h |
Weather figures are for the Cruz Bay area — the Charlotte Amalie 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 Virgin Islands?
Yes — it is the park's best-scoring month. September ranks 1 of 12 at Virgin Islands on crowds, weather, daylight, and access together.
How crowded is Virgin Islands in September?
About 13,653 recreation visits on average — 66% below March, the park's peak.
How warm is Virgin Islands in September?
Average highs around 89°F and lows around 80°F at the Charlotte Amalie AP station.
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