Updated 4 Aug 2026 · recomputed nightly

Visiting Key West in December 2026?

December is Key West at its busiest: warm and showery, around 24°C / 75°F with rain on about 9 days, and Packed on 13 of 31 days.

In short, a hard sell — heavy crowds without the best of the weather.

Across the 12 months we forecast for Key West, December is the busiest of them all. Its heaviest day is Mon 7 Dec, busier than 99% of the year; its lightest is Wed 9 Dec at 34%.

Crowds
25/31 busy or packed
4 calm · 2 lively
Weather
24°C / 75°F
rain ~9 days
Value
A poor trade
a hard sell — heavy crowds without the best of the weather

Preparing pays off in a month like this: timed-entry tickets and pre-booked tours turn the queue time into sightseeing time. see the options →

How busy is Key West in December?

The busiest days are the 1st, 5th, 7th and 8th, and 21 more. Away from those, most days sit Calm.

Cruise ships are in port on 27 of 31 days; the heaviest is Mon 7 Dec, 1 ship in at once. Those mornings fill the squares first — start early, or save them for indoors.

The month is not one thing: its lightest day sits at 34% of the year and its heaviest at 99%, so where you land inside it matters. All five Tuesdays run Busy or Packed. Daylight runs about 10 hours.

Either side of it, November is about half as busy and January is a little calmer.

The calmest days include the 9th, 21st and 30th — 4 days share that level, so there is room to choose.
HEAVY195%269%373%491%HEAVY595%670%HEAVY799%HEAVY895%BEST934%1066%1191%1295%1391%1467%1595%1673%1769%1891%1995%2040%BEST2134%2295%2347%2470%2568%2666%2791%2867%2969%BEST3034%3134%
CalmLivelyBusyPacked⚓ ships in port · % = busier than this share of the year · tap any day for its full forecast
Best daysWed 9 · Mon 21 · Wed 30 — The calmest days include the 9th, 21st and 30th — 4 days share that level, so there is room to choose.
Busiest daysTue 1 · Sat 5 · Mon 7 · Tue 8 — the heaviest of 25 busier days — check the calendar for the rest.

How does January compare? →

Locked into a busy day? Here's the play.

–9am
Own the morning.The ships dock and unload mid-morning. The headline sights before nine are yours.
10–5
Go where the day-trippers don't.Away from the headline sights it stays manageable all day. Save the marquee ones.
5pm+
Take the city back.Ships sail by early evening and the squares empty out — the best hour of the day.

Travelling on a busy day?
Timed-entry and skip-the-line tickets turn queue time into sightseeing time — sort them before you fly.

See skip-the-line options for Key West →

December weather in Key West

Comfortably warm — around 24°C / 75°F, easy shirtsleeve weather, with rain on about 9 days, so keep a layer handy.

As an Amazon Associate, this site earns from qualifying purchases — we link categories, never specific products we haven't tested.

Is December worth it in Key West?

Heavy crowds and only fair weather to show for it — a poor trade. For better value, come in February or November.

Book beds and the big-ticket sights well ahead, and start your days by eight — in a month this full, the early hours are the only uncrowded ones.

Compare January →

Keep planning

← Key West in NovemberThe month before — compare the crowds.Key West in January →The month after — compare the crowds. Key West, the whole yearAll twelve months on one page. Fort LauderdaleBusy most days in December — see its full year.KralendijkPacked most days in December — see its full year.MelbournePacked most days in December — see its full year.

Built on: United States' public holidays · the official airport-arrivals pattern (BTS T-100, measured 2023–2025; airport-arrivals proxy for visitor volume, biased low for drive-in visitors) · five years of weather records (2019–2023) · the published cruise schedule
Every figure is recomputed nightly from real cruise schedules, public and school holidays, and long-run climate normals. Gaps are shown, not filled.

Key West · Methodology · About · forecast.json · llms.txt · CC BY 4.0