Skip to content
islandyas
EN

Turkey TurkeyIsland

Avşa

20.9 km² of land in the Sea of Marmara.

When to go

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

Satellite: Sentinel-2 cloudless 2017 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.

In numbers

20.9km²

Area

35km

Coastline

191m

Highest point

2,527

People

25°C

Warmest sea

August

15km

To the mainland

When to go to Avşa

Best for the beach from July to August.

The sea is warmest in August (25 °C) and coolest in February (9 °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.

Mahalle (administrative quarter) in Marmara, Balıkesir, northwestern Turkey

Avşa is an island in Turkey. It covers 20.9 km², with 35 km of coastline. Its highest point rises to 191 m. About 2,527 people live on it. The nearest mainland is 15 km away.

Read more on Wikipedia

Getting there

  • Tekirdağ Çorlu Airport (TEQ)nearest airport with scheduled flights · 78 km in a straight lineCar hire at ISL airport (Istanbul)Discover Cars · Affiliate link
  • FerriesMarmara Adası - Ekincik Adası - Avşa Adası, Avşa Adası - Paşalimanı Adası - Narlı, Yenikapı - Marmara - Avşa
  • 15 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 Avşa.

  • 9beachesAltınkum Plajı, Çınar Plajı, Çınarlı Plajı and 6 more
  • 2ferry terminals
  • 10named peaksAliler Tepesi, Taşlı Tepe, Çiftlik Tepesi and 7 more
  • 2hotels, guesthouses and apartments
  • 4restaurants, 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

Avşa in our other atlases

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

  • 1mountainPeakyas

1 mountains

on Peakyas, the mountain atlas

  1. Aliler Hill

Open Peakyas ↗

The shape of the land.

On average the island stands 48 m above the sea. 100 % of it is below 200 m.

  • 58 %0–50 m
  • 42 %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.

Avşa21 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)91012162126292925201510
Night low (°C)4469142022231915106
Sea (°C)9910121722242523191512
Rain (mm)847453473633161246736591
Wet days1110108763258912
Sun h/day2.73.55.27.49.410.912.010.78.15.53.72.7
Wind (km/h)202119161515192119191920

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+1.6+1.2+1.7−0.1−0.1±0.0−0.5−0.2+1.0+2.2+1.6+1.4
2021+2.0+1.9+1.1−0.3+0.2+0.1+1.6+1.8+0.2−0.9+0.1+0.9
2022+1.0+0.2−1.2−0.3−0.3+0.2−0.4+0.6+0.9−0.1+0.9+1.5
2023+2.4+1.4+1.1+0.8−1.2−0.8+1.3+0.4+1.0+1.5+2.6+1.9
2024+2.4+1.4+1.5+3.0−0.1+1.2+1.4+1.2+2.0+1.6+0.7+1.1
2025+1.5+0.7+0.6+0.2−0.1+0.6+1.0+0.2+0.7+0.3+2.2+2.5

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Avşa Adası horizon (Unsplash)
Shoot N' Design shootndesign · CC0
Sunset over Sea of Marmara from Avsa Island 2024
Furkan Akkurt · CC BY-SA 4.0
Grape sculpture Avsa Island 2024
Furkan Akkurt · CC BY-SA 4.0
AVŞA - panoramio
Avşa · CC BY 3.0

About these numbers

Names, area, populationWikidata (Q791572) · 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 waterfallsPeakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0

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