December is a good month at Dry Tortugas — it ranks 3rd of the twelve here. Expect about 16% fewer visitors than May, the park's peak — 7,302 visits on average. Days run around 76°F by afternoon and 67°F at night, with 10.6 hours of daylight.
December against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| December (this page) | Good | 7,302 | −16% | 76°F | 67°F | — | 10.6 h |
| February (best) | Good | 6,443 | −25% | 76°F | 66°F | — | 11.3 h |
| May (peak crowds) | Good | 8,643 | peak | 86°F | 75°F | — | 13.3 h |
Weather figures are for Garden Key, the island Fort Jefferson stands on — the Dry Tortugas 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 December a good time to visit Dry Tortugas?
Yes — a solid month, if not the very best. December ranks 3 of 12 at Dry Tortugas on crowds, weather, daylight, and access together.
How crowded is Dry Tortugas in December?
About 7,302 recreation visits on average — 16% below May, the park's peak.
How warm is Dry Tortugas in December?
Average highs around 76°F and lows around 67°F at the Dry Tortugas station.
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