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Lac de Köycegiz (2838926571)
mwanasimba from La Réunion · CC BY-SA 2.0

TurkeyLake · Turkey

Lake Köyceğiz

Lake in Turkey

Area
51.2km²
Average depth
18m
Elevation
-2m a.s.l.
Shoreline
52km
Volume
0.912km³

Lake Köyceğiz is a lake in Turkey. It covers 51.2 km². On average it is 18 m deep. Its surface lies 2 m below sea level.

Plan your visit

Stay, sail and get there

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12°12°15°19°23°27°29°29°27°23°18°14°JanFebMarAprMayJunJulAugSepOctNovDec29°August

The water

How warm is Lake Köyceğiz?

The water is warmest in August, around 29 °C at the surface, and coldest in January, around 12 °C. The surface averages 20 °C or more from May to October: comfortable for most swimmers.

It does not normally freeze in winter.

On the shore, afternoons reach 36 °C on average in July and 10 °C in January. The driest month is July (6 mm of rain), the wettest January (180 mm).

Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (171 readings). Shallow bays and beaches are often warmer.

From above

The whole lake from space

Lake Köyceğiz seen from space (Sentinel-2)
36.933°N 28.680°E · Sentinel-2 cloudless 2016 by EOX IT Services GmbH (Copernicus Sentinel data 2016), CC BY 4.0 · Places © OpenStreetMap contributors

Month by month

The year at the lake, month by month

Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.

Water: 2013–2021 averageClimate: 1991–2020 average

The year at the lake, month by month
MonthWater°CWater high°CAir high°CAir low°CRainmmRainy daysdaysSunh/dayWindkm/h
January1212102180134.613
February1213113115115.113
March15161556996.912
April19211985188.312
May2325251336710.111
June2728311816412.212
July293036226213.112
August293036226211.811
September2728311820210.111
October232524126167.911
November18201889986.211
December1416124166134.612

Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.

Size & depth

How big, how deep

Lake KöyceğizLake AnnecyLoch Ness10 km
Drawn to the same scale, next to lakes you may know.
  • On average, water stays in the lake for about 24 months before flowing out.
  • Its catchment drains 1,016 km² of land.
  • About 15 m³ of water flow out every second, on average.

Around the shore

What's around Lake Köyceğiz

Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.

  • 1beaches and swimming spots

    Delta Plajı

  • 9campsites

    Köyceğiz Kulak Kamp Alanı, 3tents, Place for camping, Sultaniye Camping and 5 more

  • 1boat hire and water-sport clubs

    GSB Su Sporları Eğitim Kampı

  • 2marinas and slipways
  • 2ferry piers
  • 2viewpoints

    View Point

  • 12hotels, B&Bs and chalets

    Holiday Calbis, Sea Lake Hotel, Flora Hotel, Panorama Hotel, Hotel Alla Turca and 7 more

  • —fishing spots
  • 22restaurants and cafés

Towns on the shore

  • Dalyan5,000 people

Nearest airport with scheduled flights: Dalaman International Airport (DLM), 26 km in a straight line.

Car hire at DLM airport (Dalaman)Discover Cars · Affiliate link

OpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.

Photos

Seen by visitors

Blue Lagoon
PinarKarayilan · CC BY-SA 4.0
Gölde Gezinti
Arıktekin · CC BY-SA 4.0

Recent years

How each month compared

Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.

JanFebMarAprMayJunJulAugSepOctNovDec
1991–2020 average10.411.414.919.024.731.436.436.131.024.317.612.5
2020+0.6+0.4+0.4+0.4+1.3−1.9+0.7+0.5+2.9+1.6+1.2+1.7
2021+0.9+2.4−1.1+0.4+4.1−0.1+0.4+1.3−0.3−0.3+2.0−1.2
2022−1.9+0.4−4.3+1.3+1.4±0.0+0.5−1.7+0.9+1.7+1.5+2.8
2023+2.6−0.4+0.7−1.5−1.4−2.1+1.1−0.4+1.6+2.4+1.4+2.4
2024+2.0+2.8+1.3+4.4+1.7+6.5+1.3+0.7−0.5+2.4+1.1+0.3
2025+3.1−1.4+2.3−0.7−0.5+3.1+1.2+0.3+1.5−1.9+2.3+1.6

+1 warmer than usual −1 cooler than usual

About these numbers

Outline, area, depth, volumeHydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0
Water temperature and iceLakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0
Air, rain, sun, windNASA POWER, 1991–2020 · public domain
Names and descriptionWikidata (Q2661366) · CC0
Around the shore© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons

Every figure is an average or a count from a public dataset. Licences and methods: data sources.

Read more on Wikipedia

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves or dark skies?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

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cavesCavernyasEvery cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.Coming soonVisit
dark skiesDarkskyasWhere the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Coming soonVisit