December is a good month at Biscayne — it ranks 2nd of the twelve here. Expect about 23% fewer visitors than May, the park's peak — 47,260 visits on average. Days run around 78°F by afternoon and 58°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 | 47,260 | −23% | 78°F | 58°F | 0" | 10.6 h |
| January (best) | Good | 45,467 | −26% | 76°F | 55°F | 0" | 10.7 h |
| May (peak crowds) | Tough | 61,658 | peak | 86°F | 68°F | 0" | 13.4 h |
Weather figures are for the Convoy Point area — the Perrine 4W 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 Biscayne?
Yes — a solid month, if not the very best. December ranks 2 of 12 at Biscayne on crowds, weather, daylight, and access together.
How crowded is Biscayne in December?
About 47,260 recreation visits on average — 23% below May, the park's peak.
How warm is Biscayne in December?
Average highs around 78°F and lows around 58°F at the Perrine 4W station.
← Biscayne in November · All months at Biscayne · Biscayne in January →