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North Korea North KoreaIsland

Ka Island

19.0 km² of land in the Yellow Sea.

When to go

Ka Island seen from space, cut out from the sea (Sentinel-2)
N 1 km

Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.

In numbers

19.0km²

Area

42km

Coastline

330m

Highest point

24°C

Warmest sea

August

4km

To the mainland

When to go to Ka Island

Best for the beach from August to September.

The sea is warmest in August (24 °C) and coolest in February (1 °C). Comfortable swimming (21 °C or more): from July to September.

Sea temperature (the water level) Air: night low to afternoon high Wet days Best months

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.

North Korea

Ka Island is an island in North Korea. It covers 19.0 km², with 42 km of coastline. Its highest point rises to 330 m. The nearest mainland is 4 km away.

Read more on Wikipedia

Getting there

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 Ka Island.

  • 14beaches

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

Ka Island in our other atlases

Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Ka Island, each with its own numbers.

  • 1beachCoastya
  • Beach with the warmest sea

    23.8°C

    Ch’u-p’o

    sea in the warmest month · according to Coastya

1 beaches

on Coastya, the beach atlas

  1. Ch’u-p’ocove23.8°C

Open Coastya ↗

The shape of the land.

On average the island stands 93 m above the sea. 92 % of it is below 200 m.

  • 33 %0–50 m
  • 59 %50–200 m
  • 8 %200–500 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.

Ka Island19 km²
Manhattan54 km²
Santorini76 km²

5 km

All outlines drawn to the same scale (Natural Earth and OpenStreetMap).

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)-1049141923252217102
Night low (°C)-5-4161217212320146-2
Sea (°C)3127121721242218137
Rain (mm)62021569111024824688574915
Wet days223691117158764
Sun h/day5.46.07.27.27.55.74.35.76.96.04.74.9
Wind (km/h)232119181614141516212425

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.

JanFebMarAprMayJunJulAugSepOctNovDec
2020−1.3−0.9+1.1+0.9+0.4+0.6+0.4−1.3+0.4+0.5+0.2−1.2
2021−2.1−0.9+0.6+0.7+1.2+0.8+1.3+1.1+1.2+0.6±0.0−0.7
2022−1.4−0.9+0.5+0.9+1.1+0.4+0.9+0.8−0.2−1.6−0.9−2.2
2023−1.8−0.8+0.8+1.4+1.4+1.6+1.6+2.8+1.9+0.5−1.1−2.6
2024−1.4−0.4+1.0+2.2+2.4+2.3+1.1+2.9+2.9+1.6+0.6−1.1
2025−0.7−0.5+0.6+0.2+0.1+0.5+1.2+1.9+1.6+0.6−1.2−1.5

+1 warmer than usual −1 cooler than usual

About these numbers

Names, area, populationWikidata (Q6746350) · CC0
Outline© OpenStreetMap contributors · ODbL
Sea temperatureNOAA OISST v2.1 · 1991–2020
ClimateNASA POWER · 1991–2020
Relief, 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Beaches, ports, lighthouses, trails© OpenStreetMap contributors · ODbL
TownsGeoNames · CC BY 4.0
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Beaches, mountains, lakes and waterfallsCoastya — 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.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.You are here
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit