Updated 16 Sep 2026 · recomputed nightly
Is August 2027 a good month to visit Key West?
Calm — the typical August day in Key West is calmer than 91% of its year.
The weather is the trade-off here, not the crowds.
Calm · Lively · Busy · Packed rank a day against Key West's own year — not a headcount.
August 2027 is the Key West most visitors never see — Calm on 18 of 31 days — 1 day runs Busy or Packed, hot and wet, around 30°C / 86°F with rain on about 17 days.
Yes, if the weather does not put you off. The typical August day in Key West is Calm, and only 1 of the 31 days in our window runs Busy or Packed. Expect around 30 °C by day, with rain on about 17 days. Cruise ships call on 14 of the 31 days. Early August is the month's quietest stretch in Key West — the typical day at 9%, against 41% in mid August. The crush is at Mallory Square at sunset; the quiet is at the old town's back lanes. The calmest day is Sunday 1 August, the busiest Monday 16 August.
In short, quiet and wide open, if the weather doesn't put you off.
Among the 12 months we forecast for Key West, August ranks 11th for crowd pressure. Its heaviest day is Mon 16 Aug, busier than 71% of the year; its lightest is Sun 1 Aug at 9%.
You won't need skip-the-line tickets here — that's rather the point. A month like this is the one for the longer visit — the guided walk, the food tour, the day out of town, with room and time to enjoy them. see what's on →
Pack for wet first — rain on 17 of 31 days.
A folding one lives in the day bag and weighs nothing.
See umbrellas →
Refilling costs nothing and saves the walk to find a shop.
See water bottles →
How busy is Key West in August?
The busiest day is the 16th. Away from those, most days sit Calm. The calmest stretch is the 1st–15th.
Cruise ships are in port on 14 of 31 days; the heaviest is Mon 16 Aug, 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 9% of the year and its heaviest at 71%, so where you land inside it matters. Daylight runs about 13 hours.
Only one day gets genuinely busy — the 16th — a busy Monday. Every other date is yours to pick.
Sun 01 Aug Calm busier than 9% of days here
Record Key West on Sun 1 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-01 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Mon 02 Aug Calm busier than 9% of days here
Record Key West on Mon 2 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-02 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Tue 03 Aug Lively busier than 51% of days here · ⚓1
- Carnival Liberty — guest capacity 2,978 08:00–16:00
Record Key West on Tue 3 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,978 guests at double occupancy; ships in port 08:00–16:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-03 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Wed 04 Aug Lively busier than 53% of days here · ⚓1
- Celebrity Reflection — guest capacity 3,046 08:00–17:00
Record Key West on Wed 4 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 3,046 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-04 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Thu 05 Aug Calm busier than 9% of days here
Record Key West on Thu 5 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-05 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Fri 06 Aug Calm busier than 9% of days here
Record Key West on Fri 6 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-06 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sat 07 Aug Lively busier than 53% of days here · ⚓1
- Celebrity Reflection — guest capacity 3,046 08:00–17:00
Record Key West on Sat 7 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 3,046 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-07 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sun 08 Aug Lively busier than 47% of days here · ⚓1
- Margaritaville At Sea Beachcomber — guest capacity 2,698 07:00–15:00
Record Key West on Sun 8 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,698 guests at double occupancy; ships in port 07:00–15:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-08 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Mon 09 Aug Calm busier than 9% of days here
Record Key West on Mon 9 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-09 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Tue 10 Aug Calm busier than 9% of days here
Record Key West on Tue 10 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-10 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Wed 11 Aug Calm busier than 9% of days here
Record Key West on Wed 11 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-11 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Thu 12 Aug Lively busier than 53% of days here · ⚓1
- Celebrity Reflection — guest capacity 3,046
Record Key West on Thu 12 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 3,046 guests at double occupancy. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-12 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Fri 13 Aug Lively busier than 48% of days here · ⚓1
- Valiant Lady — guest capacity 2,770 08:00–17:00
Record Key West on Fri 13 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,770 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-13 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sat 14 Aug Lively busier than 53% of days here · ⚓1
- Celebrity Reflection — guest capacity 3,046 08:00–17:00
Record Key West on Sat 14 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 3,046 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-14 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sun 15 Aug Calm busier than 9% of days here
Record Key West on Sun 15 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-15 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Mon 16 Aug Busy busier than 71% of days here · ⚓1
- Carnival Breeze — guest capacity 3,690 10:00–18:00
Record Key West on Mon 16 Aug 2027 is forecast Busy. 1 cruise ship scheduled, at least 3,690 guests at double occupancy; ships in port 10:00–18:00. Nearest calmer day: Sun 15 Aug (Calm). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/key-west-florida/#d-2027-08-16 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Tue 17 Aug Lively busier than 53% of days here · ⚓1
- Celebrity Reflection — guest capacity 3,046 08:00–17:00
Record Key West on Tue 17 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 3,046 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-17 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Wed 18 Aug Calm busier than 34% of days here · ⚓1
- Margaritaville At Sea Paradise — guest capacity 1,308 07:00–16:00
Record Key West on Wed 18 Aug 2027 is forecast Calm. 1 cruise ship scheduled, at least 1,308 guests at double occupancy; ships in port 07:00–16:00. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-18 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Thu 19 Aug Calm busier than 9% of days here
Record Key West on Thu 19 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-19 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Fri 20 Aug Calm busier than 9% of days here
Record Key West on Fri 20 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-20 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sat 21 Aug Calm busier than 9% of days here
Record Key West on Sat 21 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-21 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sun 22 Aug Calm busier than 9% of days here
Record Key West on Sun 22 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-22 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Mon 23 Aug Calm busier than 9% of days here
Record Key West on Mon 23 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-23 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Tue 24 Aug Lively busier than 41% of days here · ⚓1
- Jewel Of The Seas — guest capacity 2,144
Record Key West on Tue 24 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,144 guests at double occupancy. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-24 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Wed 25 Aug Calm busier than 9% of days here
Record Key West on Wed 25 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-25 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Thu 26 Aug Calm busier than 9% of days here
Record Key West on Thu 26 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-26 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Fri 27 Aug Lively busier than 48% of days here · ⚓1
- Valiant Lady — guest capacity 2,770 08:00–17:00
Record Key West on Fri 27 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,770 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-27 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sat 28 Aug Calm busier than 9% of days here
Record Key West on Sat 28 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-28 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Sun 29 Aug Calm busier than 9% of days here
Record Key West on Sun 29 Aug 2027 is forecast Calm. This quiet day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-29 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Mon 30 Aug Lively busier than 53% of days here · ⚓1
- Celebrity Reflection — guest capacity 3,046 08:00–17:00
Record Key West on Mon 30 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 3,046 guests at double occupancy; ships in port 08:00–17:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-30 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Tue 31 Aug Lively busier than 51% of days here · ⚓1
- Carnival Liberty — guest capacity 2,978 08:00–16:00
Record Key West on Tue 31 Aug 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,978 guests at double occupancy; ships in port 08:00–16:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/key-west-florida/#d-2027-08-31 (Avoid-Crowds, as of 16 Sep 2026; recomputed nightly.)
Which week of August is quietest in Key West?
Early August is the month's quietest stretch in Key West — the typical day at 9%, against 41% in mid August.
The upside of a quiet August
- Walk straight into the sights that sell out in high season — no timed ticket, no queue.
- Keep the days loose — decide over breakfast, not weeks ahead.
- Early on, you can have the busiest spots almost to yourself — bring a camera.
No queues to skip, and nothing to book ahead — that's the whole point.
August weather in Key West
Real heat — around 30°C / 86°F by day, so pace the afternoons and carry water, with rain on about 17 days, so keep a layer handy.
This is the value month: no need to book far ahead, and the freedom to change plans on the day is part of what you're getting.
More about Key West in August
Based 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) · confirmed event dates · 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.
