
Lake · 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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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
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
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | 12 | 12 | 10 | 2 | 180 | 13 | 4.6 | 13 |
| February | 12 | 13 | 11 | 3 | 115 | 11 | 5.1 | 13 |
| March | 15 | 16 | 15 | 5 | 69 | 9 | 6.9 | 12 |
| April | 19 | 21 | 19 | 8 | 51 | 8 | 8.3 | 12 |
| May | 23 | 25 | 25 | 13 | 36 | 7 | 10.1 | 11 |
| June | 27 | 28 | 31 | 18 | 16 | 4 | 12.2 | 12 |
| July | 29 | 30 | 36 | 22 | 6 | 2 | 13.1 | 12 |
| August | 29 | 30 | 36 | 22 | 6 | 2 | 11.8 | 11 |
| September | 27 | 28 | 31 | 18 | 20 | 2 | 10.1 | 11 |
| October | 23 | 25 | 24 | 12 | 61 | 6 | 7.9 | 11 |
| November | 18 | 20 | 18 | 8 | 99 | 8 | 6.2 | 11 |
| December | 14 | 16 | 12 | 4 | 166 | 13 | 4.6 | 12 |
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
- 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 linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | 10.4 | 11.4 | 14.9 | 19.0 | 24.7 | 31.4 | 36.4 | 36.1 | 31.0 | 24.3 | 17.6 | 12.5 |
| 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, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q2661366) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX 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.

