Lake Köyceğiz

Lake Freshwater lake near Mediterranean coast with wetlands

A lagoon lake in Muğla Province connected to the Mediterranean by a narrow channel, Lake Köyceğiz is a base for boat trips to Dalyan, thermal springs, mud baths and nearby İztuzu Beach turtle nesting.

Main image

Lake Köyceğiz is a shallow coastal lake in Muğla Province in southwestern Turkey, adjacent to the town of Köyceğiz and linked to the Mediterranean Sea by a short channel to Dalyan. It lies within a protected environmental area that includes marshes, reed beds and coastal dunes.

The lake is used for short boat excursions, birdwatching, fishing and visits to nearby hot springs; many visitors combine a lake boat trip with a visit to İztuzu beach and the ancient ruins of Kaunos. Boats regularly travel the Dalyan channel to the coast, and lakeside facilities support small-scale tourism and local fisheries.

Human use around the lake dates back to antiquity - the Kaunos settlement at the river mouth was an active port in Lycian, Hellenistic and Roman times and the shoreline has remained inhabited through the Ottoman and modern Turkish periods. In recent decades the area has been managed for both tourism and conservation as part of a regional special environmental protection zone.

The lake lies in southwestern Anatolia in Muğla Province, a short drive from the coastal resorts of the southwestern Turkish Aegean-Mediterranean region; the town of Köyceğiz sits on the northeast shore and Dalyan and İztuzu beach lie just to the southwest.

  • Boat trips: Boat excursions commonly run between the town, the Dalyan estuary and İztuzu beach; trips take around 30-60 minutes depending on route.
  • Turtle nesting: The coastal spit nearby is an important nesting site for loggerhead sea turtles and is part of local conservation measures.

What to See #

  • Köyceğiz town: A compact town on the lake's shore that serves as the main gateway for boat trips, local markets and lakeside promenades.
  • Dalyan channel: A narrow channel that links the lake to the Mediterranean near the Dalyan estuary and provides the boat route used by daily excursions to the coast.
  • İztuzu beach: A long sandy spit on the nearby coast noted for loggerhead turtle nesting and accessible by boat from the Dalyan estuary.
  • Sultaniye hot springs: A small lakeside area with thermal springs and mud baths that attract day visitors and local spa users.
  • Kaunos ruins: Ruins of an ancient port city at the mouth of the river that have visible Lycian, Hellenistic and Roman remains and are frequently visited on combined lake-and-coast tours.
Lake Köyceğiz
Lake Köyceğiz, Köyceğiz district, Muğla Province, Turkey
36.9194, 28.6555

Tips for Visiting Lake Köyceğiz #

  • Access the lake from the town of Köyceğiz or by boat from Dalyan; take an early-morning boat trip for calmer water and better wildlife viewing of the wetlands.
  • Combine a lake boat trip with visits to nearby Sultaniye hot springs and mud baths on the lakeshore-these are commonly reached by short boat rides from Köyceğiz.
  • The lake and adjacent wetlands are a protected area-respect park rules and beach signage, particularly during the summer turtle‑nesting season on nearby İztuzu (observe fenced/marked areas).

Best Time to Visit Lake Köyceğiz #

Best visited in spring or autumn (April-May, September-October) to avoid peak summer heat while still enjoying boat trips and outdoor activities.

High summer
June-August · ~25-35°C
Hot and sunny-good for swimming and boat tours but can be uncomfortably hot in midday.
Spring/Autumn
April-May, September-October · ~15-25°C
Warm, pleasant weather that's ideal for sightseeing, boating and exploring the surrounding wetlands.
Winter
November-March · ~5-15°C
Mild winters with cooler, wetter conditions; some services may be reduced.

Weather & Climate near Lake Köyceğiz #

Climate

Lake Köyceğiz's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with hot summers (peaking in July) and cool winters (coldest in January). Temperatures range from 8°C to 32°C. Abundant rainfall (1066 mm/year), wettest in December with a pronounced dry season.

Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
43°
Warmest Month
-8°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 14°C and lows of 8°C. Heavy rain (218 mm) and partly cloudy skies.

53 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
82%
Humidity
Very Humid

Weather

218 mm
Rainfall
2.3 m/s
Wind
Calm
0.3
UV Index
Low
9.8h daylight

February

February is cool with highs of 15°C and lows of 8°C. Significant rainfall (160 mm) and partly cloudy skies.

55 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
15°
81%
Humidity
Very Humid

Weather

160 mm
Rainfall
2.8 m/s
Wind
Calm
0.6
UV Index
Moderate
10.7h daylight

March

March is cool with highs of 17°C and lows of 9°C. Regular rainfall (95 mm).

71 Very Good

Comfort

13°
Feels Like Cool
13°C
Temperature
17°
76%
Humidity
Very Humid

Weather

95 mm
Rainfall
2.7 m/s
Wind
Calm
1.0
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 21°C and lows of 12°C. Moderate rainfall (48 mm).

77 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 21°
70%
Humidity
Very Humid

Weather

48 mm
Rainfall
2.6 m/s
Wind
Calm
1.4
UV Index
High
13.0h daylight

May

May is mild with highs of 25°C and lows of 16°C. Light rainfall and mostly sunny skies.

91 Ideal

Comfort

21°
Feels Like Mild
21°C
Temperature
16° 25°
61%
Humidity
Humid

Weather

25 mm
Rainfall
2.8 m/s
Wind
Calm
1.9
UV Index
Very High
14.0h daylight

June

June is warm with highs of 30°C and lows of 20°C. Light rainfall and clear sunny skies.

99 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
20° 30°
47%
Humidity
Comfortable

Weather

13 mm
Rainfall
2.9 m/s
Wind
Calm
2.4
UV Index
Extreme
14.5h daylight

July

July is the warmest month with highs of 32°C and lows of 22°C. The driest month with just 5 mm and clear sunny skies.

100 Ideal

Comfort

27°
Feels Like Warm
27°C
Temperature
22° 32°
35%
Humidity
Comfortable

Weather

5 mm
Rainfall
3.3 m/s
Wind
Light Breeze
2.5
UV Index
Extreme
14.2h daylight

August

August is warm with highs of 32°C and lows of 22°C. Almost no rain and clear sunny skies.

100 Ideal

Comfort

27°
Feels Like Warm
27°C
Temperature
22° 32°
36%
Humidity
Comfortable

Weather

6 mm
Rainfall
3.0 m/s
Wind
Light Breeze
2.1
UV Index
Extreme
13.4h daylight

September

September is warm with highs of 29°C and lows of 20°C. Light rainfall and clear sunny skies.

97 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
20° 29°
43%
Humidity
Comfortable

Weather

21 mm
Rainfall
2.6 m/s
Wind
Calm
1.6
UV Index
Very High
12.3h daylight

October

October is mild with highs of 25°C and lows of 16°C. Regular rainfall (82 mm) and mostly sunny skies.

85 Excellent

Comfort

20°
Feels Like Mild
20°C
Temperature
16° 25°
56%
Humidity
Humid

Weather

82 mm
Rainfall
2.4 m/s
Wind
Calm
0.9
UV Index
Moderate
11.1h daylight

November

November is cool with highs of 20°C and lows of 11°C. Significant rainfall (150 mm).

67 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 20°
70%
Humidity
Humid

Weather

150 mm
Rainfall
2.2 m/s
Wind
Calm
0.5
UV Index
Low
10.1h daylight

December

December is cool with highs of 16°C and lows of 9°C. The wettest month with heavy rain (243 mm) and partly cloudy skies.

61 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
78%
Humidity
Very Humid

Weather

243 mm
Rainfall
2.3 m/s
Wind
Calm
0.3
UV Index
Low
9.6h daylight

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