Updated 4 Aug 2026 · recomputed nightly

Visiting Key West in May 2027?

May 2027 is a shoulder month in Key West: warm and wet, around 27°C / 81°F with rain on about 12 days, Calm on 13 of 31 days — 14 days run Busy or Packed.

In short, a solid middle-ground pick.

Among the 12 months we forecast for Key West, May ranks 6th for crowd pressure. Its heaviest day is Mon 24 May, busier than 93% of the year; its lightest is Sun 2 May at 22%.

Crowds

14/31 busy or packed

13 calm · 4 lively

Weather

27°C / 81°F

rain ~12 days

Value

Weather is the catch

a solid middle-ground pick

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 May?

The busiest days are the 1st, 8th, 10th and 24th, and 10 more. Away from those, most days sit Calm. The calmest stretch is the 12th–14th.

Cruise ships are in port on 20 of 31 days; the heaviest is Mon 24 May, 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 22% of the year and its heaviest at 93%, so where you land inside it matters. All five Saturdays run Busy or Packed. Daylight runs about 13 hours.

Either side of it, April picks up and June is a little calmer.

The calmest days include the 2nd, 3rd and 5th — 10 days share that level, so there is room to choose.

CalmLivelyBusyPacked⚓ ships in port · % = busier than this share of the year · tap any day for its full forecast

Best daysSun 2 · Mon 3 · Wed 5 — The calmest days include the 2nd, 3rd and 5th — 10 days share that level, so there is room to choose.

Busiest daysSat 1 · Sat 8 · Mon 10 · Mon 24 — the heaviest of 14 busier days — check the calendar for the rest.

How does June 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.

Need flexibility? The 12th–14th is the month's calmest stretch — the easiest window to move around in.
On the busy days, the walk-up queues for the big sights are the biggest time-sink — a timed-entry ticket skips them, which is where a busy month is won or lost.

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 →

May weather in Key West

Comfortably warm — around 27°C / 81°F, easy shirtsleeve weather, with rain on about 12 days, so keep a layer handy.

Key West gets rain on about 12 days in May, so the odds of being caught out are real. What earns its bag space is a shell that packs to nothing, dries fast and has a hood that survives wind; a heavy waterproof is overkill and an umbrella is one more thing to carry through crowds. Browse on Amazon ↗

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

Is May worth it in Key West?

The weather's the catch, but you dodge the worst of the crowds.

Worth booking the marquee sights ahead for the busy days, but you can keep the rest of the trip flexible.

Compare June →

Keep planning

← Key West in AprilThe month before — compare the crowds.Key West in June →The month after — compare the crowds. Key West, the whole yearAll twelve months on one page. BostonBusy most days in May — see its full year.BrugesBusy most days in May — see its full year.BrusselsBusy most days in May — 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.