United States
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
12.8km²
Area
44km
Coastline
14m
Highest point
26,444
People
30°C
Warmest sea
August
88km
To the mainland
When to go to Key West
Best for the beach from February to April and from November to December.
The sea is warmest in August (30 °C) and coolest in February (23 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in Monroe County, Florida, United States
Key West is an island in United States. It belongs to Florida Keys. It covers 12.8 km², with 44 km of coastline. Its highest point rises to 14 m. About 26,444 people live on it. The nearest mainland is 88 km away.
Getting there
- Key West International Airport (EYW)airport on the island, with scheduled flightsCar hire at EYW airport (Key West)Discover Cars · Affiliate link↗
- FerriesSunset Key Ferry, Key West - Dry Tortugas National Park, Key West - Ft. Myers Beach, Key West - Marco Island (seasonal)
- 88 km from the mainlanddistance to the nearest continental coast
- From February to April and from November to Decemberbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
On the island
What you find on Key West.
- 24beachesSmathers Beach, Higgs Beach, Dog Beach and 21 more
- 3viewpointsMile 0
- 2ferry terminalsSunset Key Ferry, Key West Bight Ferry Terminal
- 4marinasKey West Bight Marina, Galleon Marina, A & B Marina and 1 more
- 1castles and fortsFort Zachary Taylor
- 3ruins and archaeological sitesBurnt Down Building, Battery 231, Battery Seminole
- 3dive centresDivers Direct, Captain Hook, Lost Reef Adventures
- 1waymarked walking routesEastern Continental Trail
- 2campsitesNaval Air Station Key West Campground
- 126hotels, guesthouses and apartments
- 178restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
Cross-checked with our atlases
Key West in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Key West, each with its own numbers.
2beaches and covesCoastya
Beach with the warmest sea
30.0°C
sea in the warmest month · according to Coastya
The shape of the land.
On average the island stands 3 m above the sea. 100 % of it is below 200 m.
- 100 %0–50 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Key West25,755 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 23 | 23 | 24 | 26 | 27 | 29 | 30 | 30 | 29 | 28 | 26 | 24 |
| Night low (°C) | 21 | 22 | 23 | 24 | 26 | 28 | 29 | 29 | 28 | 27 | 24 | 23 |
| Sea (°C) | 23 | 23 | 24 | 25 | 27 | 28 | 30 | 30 | 30 | 28 | 26 | 24 |
| Rain (mm) | 33 | 34 | 26 | 44 | 96 | 157 | 127 | 156 | 177 | 116 | 49 | 39 |
| Wet days | 7 | 5 | 6 | 8 | 14 | 23 | 24 | 26 | 24 | 17 | 8 | 8 |
| Sun h/day | 6.7 | 7.8 | 9.0 | 9.6 | 9.4 | 8.4 | 8.7 | 8.4 | 7.4 | 7.4 | 7.2 | 6.7 |
| Wind (km/h) | 22 | 20 | 21 | 20 | 19 | 16 | 15 | 16 | 16 | 22 | 23 | 22 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.7 | +0.8 | +0.5 | +1.8 | +0.3 | +0.5 | +0.8 | +0.2 | +0.6 | +0.7 | +0.7 | −0.2 |
| 2021 | −0.5 | +0.5 | +0.4 | +0.2 | +0.4 | −0.3 | −0.2 | +0.2 | +0.5 | +0.9 | +0.4 | +0.8 |
| 2022 | +1.2 | +0.1 | +1.2 | +0.5 | +0.7 | +0.5 | +0.8 | +0.3 | +0.9 | −0.2 | +1.2 | +1.1 |
| 2023 | +0.6 | +1.6 | +1.6 | +1.4 | +1.2 | +0.9 | +1.9 | +1.3 | +1.0 | +0.7 | +1.1 | +0.6 |
| 2024 | +0.2 | −0.3 | +0.7 | ±0.0 | +1.7 | +1.0 | +0.9 | +0.8 | +1.1 | +0.5 | +0.7 | −0.7 |
| 2025 | −1.0 | +0.5 | +0.2 | +0.1 | +0.9 | +0.6 | +0.5 | +0.9 | +0.8 | +0.7 | +0.4 | +0.8 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Cuba
About these numbers
| Names, area, population | Wikidata (Q1187170) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Beaches, mountains, lakes and waterfalls | Coastya — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.You are here
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit