Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
2.5km²
Area
10km
Coastline
141m
Highest point
4,885
People
24°C
Warmest sea
August
6km
To the mainland
When to go to Heybeliada
Best for the beach from July to August.
The sea is warmest in August (24 °C) and coolest in February (8 °C). Comfortable swimming (21 °C or more): from July to September.
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.
Mahalle (administrative quarter) in Adalar, İstanbul–Asia, northwestern Turkey
Heybeliada is an island in Turkey. It covers 2.5 km², with 10 km of coastline. Its highest point rises to 141 m. About 4,885 people live on it. The nearest mainland is 6 km away.
Getting there
- Istanbul Sabiha Gökçen International Airport (SAW)nearest airport with scheduled flights · 19 km in a straight lineCar hire at SAW airport (Pendik, Istanbul)Discover Cars · Affiliate link↗
- FerriesBostancı - Adalar Ring Hattı, Burgaz Adası - Heybeliada, Heybeliada - Büyükada, Kabataş-Adalar Hattı
- 6 km from the mainlanddistance to the nearest continental coast
- From July to Augustbest 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 Heybeliada.
- 6beachesAda beach and 5 more
- 11viewpoints
- 6ferry terminalsHeybeliada - Büyükada, Heybeliada, Heybeliada Vapur İskelesi and 3 more
- 1ruins and archaeological sites
- 6hotels, guesthouses and apartments
- 39restaurants, 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.
The shape of the land.
On average the island stands 46 m above the sea. 100 % of it is below 200 m.
- 62 %0–50 m
- 38 %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.
2 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Heybeliada4,424 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 8 | 9 | 12 | 16 | 21 | 25 | 28 | 28 | 25 | 20 | 15 | 10 |
| Night low (°C) | 3 | 4 | 5 | 8 | 13 | 18 | 21 | 21 | 18 | 14 | 9 | 5 |
| Sea (°C) | 9 | 8 | 9 | 11 | 16 | 21 | 23 | 24 | 22 | 19 | 15 | 12 |
| Rain (mm) | 85 | 69 | 59 | 44 | 39 | 43 | 24 | 28 | 56 | 72 | 65 | 90 |
| Wet days | 13 | 11 | 10 | 9 | 7 | 8 | 4 | 4 | 8 | 10 | 10 | 14 |
| Sun h/day | 2.1 | 2.8 | 4.8 | 6.7 | 8.7 | 10.5 | 11.2 | 9.8 | 7.3 | 4.8 | 3.1 | 2.0 |
| Wind (km/h) | 16 | 17 | 16 | 14 | 12 | 13 | 15 | 16 | 15 | 15 | 15 | 16 |
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 | +2.0 | +1.7 | +1.9 | +0.4 | +0.1 | +0.7 | +0.5 | +0.4 | +1.5 | +2.7 | +1.9 | +1.4 |
| 2021 | +2.1 | +2.2 | +1.2 | ±0.0 | +0.4 | −0.6 | +0.7 | +1.1 | +0.4 | −0.6 | +0.3 | +1.2 |
| 2022 | +1.8 | +1.0 | −0.4 | +0.1 | −0.4 | ±0.0 | −0.8 | +0.4 | +0.7 | −0.1 | +1.1 | +1.9 |
| 2023 | +2.6 | +1.9 | +1.7 | +1.1 | −1.0 | −0.8 | +0.8 | −0.3 | +0.2 | +1.5 | +2.8 | +2.1 |
| 2024 | +2.6 | +2.2 | +1.9 | +3.0 | −0.1 | +1.1 | +1.5 | +1.2 | +2.0 | +1.6 | +1.0 | +1.2 |
| 2025 | +2.1 | +1.5 | +1.2 | +0.6 | +0.4 | +0.1 | +0.9 | −0.5 | +0.8 | +0.5 | +2.3 | +3.0 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
Büyükada
Turkey5.4 km²199 m3 km away
Burgaz AdasıTurkey1.5 km²162 m2 km away
İmralıTurkey9.8 km²217 m60 km away
Marmara IslandTurkey117 km²699 m126 km away
AvşaTurkey21 km²191 m139 km away
St. Ivan Island
Bulgaria0.29 km²33 m209 km awaySt. Cyricus IslandBulgaria0.08 km²15 m208 km away
St. Anastasia IslandBulgaria0.01 km²12 m218 km awayAbout these numbers
| Names, area, population | Wikidata (Q253317) · 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 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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