Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
65.8km²
Area
68km
Coastline
596m
Highest point
25°C
Warmest sea
August
140km
To the mainland
When to go to Kasos
Best for the beach from July to September.
The sea is warmest in August (25 °C) and coolest in February (16 °C). Comfortable swimming (21 °C or more): from June to October.
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 of Greece
Kasos is an island in Greece. It covers 65.8 km², with 68 km of coastline. Its highest point rises to 596 m. The nearest mainland is 140 km away.
Getting there
- Karpathos Airport (AOK)nearest airport with scheduled flights · 20 km in a straight lineCar hire at JSH airport (Crete Island)Discover Cars · Affiliate link↗
- FerriesSitia - Kasos, Kasos - Karpathos, Kasos - Leros, Kasos - Rhodes
- 140 km from the mainlanddistance to the nearest continental coast
- From July to Septemberbest 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 Kasos.
- 7beachesTrita Beach, Mikro Avlaki beach, Chochliákia and 4 more
- 6viewpoints
- 2lighthouses
- 1ferry terminals
- 1named peaks
- 1ruins and archaeological sitesEllinika Grammata
- 9waymarked walking routesKassos Trail 1, Kassos Trail 1A, Kassos Trail 2 and 6 more
- 9hotels, guesthouses and apartments
- 24restaurants, 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
Kasos in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Kasos, each with its own numbers.
1beachCoastya
2mountainsPeakyas
Beach with the warmest sea
25.1°C
Ormískos Chélatros
sea in the warmest month · according to Coastya
The shape of the land.
On average the island stands 232 m above the sea. 44 % of it is below 200 m.
- 12 %0–50 m
- 32 %50–200 m
- 53 %200–500 m
- 3 %500–1,000 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.
10 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Fry357 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 15 | 15 | 16 | 18 | 20 | 24 | 26 | 26 | 25 | 22 | 20 | 17 |
| Night low (°C) | 14 | 13 | 14 | 16 | 19 | 22 | 24 | 25 | 24 | 21 | 18 | 15 |
| Sea (°C) | 17 | 16 | 16 | 17 | 19 | 22 | 24 | 25 | 25 | 23 | 21 | 18 |
| Rain (mm) | 113 | 88 | 49 | 29 | 18 | 6 | 2 | 2 | 16 | 46 | 65 | 109 |
| Wet days | 16 | 14 | 10 | 8 | 5 | 2 | 0 | 1 | 4 | 9 | 11 | 15 |
| Sun h/day | 4.5 | 5.3 | 7.4 | 9.0 | 10.7 | 12.5 | 12.6 | 11.5 | 9.9 | 7.7 | 5.7 | 4.2 |
| Wind (km/h) | 26 | 25 | 23 | 20 | 18 | 20 | 24 | 23 | 22 | 20 | 21 | 24 |
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 | +0.3 | +0.6 | +0.2 | +0.2 | +0.9 | ±0.0 | +0.2 | +0.6 | +1.6 | +1.5 | +0.8 | +1.4 |
| 2021 | +2.0 | +1.0 | +1.0 | +0.7 | +0.8 | +0.3 | +0.4 | +0.8 | +0.2 | +0.1 | +0.7 | +0.4 |
| 2022 | +1.0 | +0.7 | +0.6 | +0.3 | +0.3 | +0.1 | −0.9 | +0.1 | +0.4 | −0.8 | −0.6 | +0.9 |
| 2023 | +2.1 | +1.0 | +0.9 | +0.4 | −0.4 | −0.2 | +0.8 | +1.5 | +1.4 | +1.6 | +2.5 | +1.9 |
| 2024 | +2.5 | +1.0 | +1.2 | +1.2 | +0.4 | +1.1 | +1.5 | +1.7 | +1.2 | +0.4 | +0.3 | +0.9 |
| 2025 | +1.2 | +1.3 | +0.8 | +0.3 | +0.5 | +0.1 | +1.5 | +0.8 | +0.2 | +0.4 | +1.1 | +1.3 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.




Nearby
More islands nearby.
About these numbers
| Names, area, population | Wikidata (Q533410) · 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, Peakyas — 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
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