Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
71.3km²
Area
38km
Coastline
1,172m
Highest point
0
People
9°C
Warmest sea
September
495km
To the mainland
When to go to Ketoy
Good all year round.
The sea is warmest in September (9 °C) and coolest in February (2 °C). The water never reaches 21 °C: bring a wetsuit.
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 Kuril Islands, Russia
Ketoy is an island in Russia. It covers 71.3 km², with 38 km of coastline. Its highest point rises to 1,172 m. Nobody lives on it. The nearest mainland is 495 km away.
Getting there
- 495 km from the mainlanddistance to the nearest continental coast
Plan the trip
Ferries, stays and things to do
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On the island
What you find on Ketoy.
- 3volcanoesKetoy, Pallasa
- 4waterfalls
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
Ketoy in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Ketoy, each with its own numbers.
1beachCoastya
1lakeLakeyas
1waterfallCascadyas
Largest lake
1.6km²
Malakhitovoe
according to Lakeyas
Beach with the warmest sea
9.1°C
Bukhta Diany
sea in the warmest month · according to Coastya
1 lakes
on Lakeyas, the lake atlas
- Malakhitovoe1.6km²
Lakeyas is coming soonOpen Lakeyas ↗
1 waterfalls
on Cascadyas, the waterfall atlas
- Vodopad Kaskad
Cascadyas is coming soonOpen Cascadyas ↗
The shape of the land.
On average the island stands 369 m above the sea. 35 % of it is below 200 m.
- 5 %0–50 m
- 30 %50–200 m
- 34 %200–500 m
- 30 %500–1,000 m
- 1 %1,000–2,000 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.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | -1 | -2 | 0 | 1 | 3 | 5 | 8 | 11 | 11 | 8 | 4 | 1 |
| Night low (°C) | -3 | -4 | -2 | 0 | 2 | 4 | 7 | 10 | 10 | 6 | 2 | -1 |
| Sea (°C) | 2 | 2 | 2 | 2 | 2 | 4 | 7 | 9 | 9 | 7 | 4 | 3 |
| Rain (mm) | 48 | 62 | 94 | 72 | 84 | 75 | 104 | 128 | 119 | 116 | 109 | 71 |
| Wet days | 14 | 17 | 19 | 14 | 13 | 14 | 16 | 18 | 15 | 16 | 18 | 18 |
| Sun h/day | 1.7 | 2.2 | 3.4 | 3.9 | 3.7 | 3.6 | 3.2 | 3.1 | 4.4 | 3.9 | 2.0 | 1.4 |
| Wind (km/h) | 34 | 35 | 34 | 29 | 23 | 18 | 17 | 18 | 22 | 28 | 33 | 36 |
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 | −0.4 | −0.3 | +0.1 | +0.6 | −0.1 | ±0.0 | −0.1 | ±0.0 | +0.9 | +1.6 | +1.0 | +0.1 |
| 2021 | −0.4 | −0.1 | −0.3 | −1.0 | +1.0 | +0.7 | +1.5 | +0.6 | +0.8 | −0.1 | +0.4 | +0.5 |
| 2022 | +0.5 | +0.5 | +0.6 | +0.3 | +0.4 | +0.5 | −0.5 | −2.8 | −1.7 | +0.3 | −0.1 | +0.5 |
| 2023 | −0.4 | −0.1 | +0.1 | +0.5 | ±0.0 | −0.6 | −1.7 | −1.8 | −2.2 | +0.3 | +0.1 | +0.2 |
| 2024 | ±0.0 | +0.1 | ±0.0 | +0.1 | −0.1 | −1.2 | −0.9 | −2.3 | −1.6 | −0.6 | −1.2 | ±0.0 |
| 2025 | +0.1 | +0.6 | +0.3 | +0.6 | −0.1 | −0.8 | −0.9 | −2.2 | −2.8 | −0.6 | −0.9 | −0.3 |
+1 warmer than usual −1 cooler than usual
Nearby
More islands nearby.
Simushir
Russia336 km²1,539 m56 km away
MatuaRussia52 km²1,496 m98 km away
ShiashkotanRussia116 km²930 m203 km away
EkarmaRussia32 km²1,170 m209 km away
UrupRussia1,416 km²1,426 m251 km away
KharimkotanRussia76 km²1,145 m248 km away
OnekotanRussia426 km²1,325 m287 km away
MakanrushiRussia50 km²1,169 m305 km awayAbout these numbers
| Names, area, population | Wikidata (Q132051) · 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, Lakeyas, Cascadyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST; HydroLAKES (Messager et al. 2016) · CC BY 4.0, LakeTEMP (Korver et al. 2024) · CC BY 4.0 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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