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Croatia CroatiaIsland

Sestrunj

15.0 km² of land in the Adriatic Sea.

When to go

Sestrunj 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

15.0km²

Area

30km

Coastline

185m

Highest point

25°C

Warmest sea

August

13km

To the mainland

When to go to Sestrunj

Best for the beach from July to August.

The sea is warmest in August (25 °C) and coolest in February (12 °C). Comfortable swimming (21 °C or more): from June 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.

Island of Croatia

Sestrunj is an island in Croatia. It covers 15.0 km², with 30 km of coastline. Its highest point rises to 185 m. The nearest mainland is 13 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 Sestrunj.

  • 8named peaksSridnji, Pišćak, Drakovac and 5 more
  • 1restaurants, 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

Sestrunj in our other atlases

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

  • 1beachCoastya
  • Beach with the warmest sea

    25.0°C

    Uvala Kablin

    sea in the warmest month · according to Coastya

1 beaches

on Coastya, the beach atlas

  1. Uvala Kablincove25.0°C

Open Coastya ↗

The shape of the land.

On average the island stands 60 m above the sea. 100 % of it is below 200 m.

  • 39 %0–50 m
  • 61 %50–200 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.

Sestrunj15 km²
Capri10 km²
Manhattan54 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)101113162025282824201612
Night low (°C)77912162023232016139
Sea (°C)141213141822242523201815
Rain (mm)9010078666448404710293129108
Wet days111010111086710111412
Sun h/day2.53.35.06.47.89.610.59.36.44.62.72.4
Wind (km/h)202119161413131315162020

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+2.1+1.7+0.2−0.3−0.8−1.0−0.1+1.5+1.7+0.5+0.7+0.3
2021+0.8+1.4+0.6−0.9−1.4+0.3+1.0+1.2+1.4+1.0+0.9+0.6
2022+1.2+0.9−0.4−1.0−0.2+1.0+1.4+0.2+0.6+0.7+1.5+1.5
2023+1.5+0.9+0.5−0.6−1.4+0.1+1.7+1.0+1.3+2.4+1.4+1.7
2024+1.7+1.8+1.4+1.6+0.4+1.4+2.1+3.0+1.8+1.2+2.0+1.2
2025+1.3+1.2+1.3−0.2−0.5+1.1+1.3+0.4+2.3+0.1+0.3+1.3

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Sestrunj
Andres rus · CC BY-SA 3.0
Otok Sestrunj
Mich973 · CC BY-SA 4.0

About these numbers

Names, area, populationWikidata (Q1343941) · 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.Coming soonVisit