Turkey / Kocaeli
Kefken Plajı
Kefken Plajı is a 344 m-long beach facing west-north-west, 900 m north-east of Kefken (Kocaeli, Turkey). The sea averages 25.0 °C in August, its warmest month, and 7.2 °C in February; it is 21 °C or warmer in June–September.
Average sea surface temperature by month. Current month outlined.
Month by month
October at Kefken Plajı
Beach-day index 4.6/10 · Turkey median 6.2
| Measure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea °C | 8.5 °C | 7.2 °C | 7.9 °C | 10.3 °C | 15.5 °C | 21.0 °C | 24.0 °C | 25.0 °C | 22.9 °C | 19.3 °C | 15.2 °C | 11.2 °C |
| High °C | 8° | 8° | 9° | 12° | 17° | 22° | 25° | 25° | 23° | 19° | 15° | 11° |
| Low °C | 6° | 6° | 7° | 10° | 15° | 21° | 24° | 24° | 21° | 17° | 13° | 9° |
| Rain mm | 102 | 78 | 70 | 43 | 34 | 42 | 30 | 31 | 56 | 75 | 77 | 113 |
| Cloud % | 82 | 80 | 74 | 68 | 59 | 41 | 28 | 32 | 51 | 66 | 74 | 81 |
| Wind m/s | 5.8 | 5.5 | 5.0 | 4.4 | 4.0 | 4.3 | 5.0 | 5.6 | 5.5 | 5.4 | 5.2 | 5.7 |
| Daylight h | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.9 | 13.9 | 12.5 | 11.2 | 9.9 | 9.2 |
| Record high/low | 15°/0° | 17°/-1° | 21°/1° | 21°/4° | 26°/10° | 31°/15° | 28°/20° | 29°/21° | 29°/17° | 25°/9° | 23°/6° | 19°/2° |
| Beach index | 2.1 | 2.3 | 2.5 | 2.9 | 3.3 | 7.2 | 9.1 | 9.2 | 7.8 | 4.6 | 2.5 | 2.0 |
Long-term monthly averages: air from NASA POWER (2001–2020), sea from NOAA OISST (1991–2020); records are the extremes of 2001–2020. How the index works.
When to go
The beach-day index peaks in July–August; August scores 9.2/10 with highs of 25 °C, sea at 25.0 °C and 31 mm of rain.
That matches the median for beaches in Turkey in the same month.
Across the year the sea averages 15.7 °C, cooler than 70% of the coastal beaches in the atlas.
December is the wettest month (113 mm) and July the driest (30 mm); the yearly total is about 750 mm.
Daylight runs from 9.2 hours in December to 15.1 hours in June; in mid-August the sun rises at 06:07 and sets at 20:00 local time.
Orientation, sun and shore
The shore faces west-north-west (300°). Open water fills about 19% of the horizon close by, which makes it a sheltered cove or bay.
The sun sets over the sea in March–September; in mid-June it goes down at 20:32 local time on a bearing of 303°.
Straight out to the west-north-west the next coast is roughly 200 km away, so waves are mostly wind-driven sea rather than ocean swell.
About 1 km offshore the sea is roughly 12 m deep and 39 m at 3 km. Behind the beach the ground is about 20 m above sea level 500 m inland and 33 m at 1.5 km.
Within 1 km, the land is 73% tree cover, 14% built-up land and 12% grassland (satellite land-cover map, 2021): a largely natural setting. Water makes up 24% of that circle.
- Tree 73%
- Built 14%
- Grass 12%
Land cover: ESA WorldCover 2021 (10 m). Orientation from OpenStreetMap land polygons sampled in 36 directions; depths and heights from the GEBCO 2020 grid (about 450 m cells), indicative only.
OpenStreetMap shows no lifeguard station within 1 km. Seasonal lifeguard posts are often unmapped, so check on site.
From above
Facilities within 1 km
- 12Restaurants, cafés & bars
- –Public toilets
- –Showers
- 3Car parks
- –Lifeguard stations
- 4Hotels & guesthouses
- 6Campsites
- 7Grocery shops
- 8Bus stops (1.5 km)
- 1Pharmacies & clinics
- 1Viewpoints
Food and drink mapped within 1 km: 10 restaurants, 1 café and 1 fast-food outlet. Accommodation: 4 hotels and guesthouses.
Counted within 1 km of the beach (bus stops 1.5 km) from OpenStreetMap features and Overture Maps places, release of 2026-10. Unmapped does not mean absent.
Around the beach
Viewpoints
- Kefken Limanı 990 m SW
Campsites
- Kefken Askeri Kampı 240 m SW
- Kumcağız Çadır Kamp 260 m S
- GSB Kefken Genclik Kampı 300 m NE
- Yesil Koy 890 m NW
- wild camping 920 m NW
Getting there
| Airport | Code | Distance | Direction |
|---|---|---|---|
| Istanbul Sabiha Gökçen International Airport Pendik, Istanbul | SAW | 83.4 km | west |
| Bursa Yenişehir Airport Yenişehir | YEI | 117 km | south-west |
| İstanbul Airport Istanbul | IST | 126 km | west |
Straight-line distances from the beach; road distance is usually 20–40% longer.
Local transport: 8 bus stops within 1.5 km and 3 mapped car parks within 1 km.
2 towns and villages of 1,000+ people lie within 10 km (about 3.2K residents); within 30 km there are 7 (about 32K).
Map and nearby beaches
Loading map…
Open in OpenStreetMap · Directions in Google Maps
| Beach | Distance | Warmest sea | Length | Surface |
|---|---|---|---|---|
| Kefken Plajı | – | 25.0 °C | 344 m | – |
| Kerpe Plajı | 3.8 km SW | 25.0 °C | 202 m | – |
| Bağırganlı Plajı | 18.4 km W | 25.0 °C | 507 m | – |
| Şile Plajı | 33.6 km W | 25.0 °C | 2.4 km | – |
- Kerpe Plajı3.8 km SWCompare
- Bağırganlı Plajı18.4 km WCompare
- Şile Plajı33.6 km WCompare
Data on this page
- Air temperature, rain, cloud, wind, humidity: NASA POWER climatology 2001–2020, 0.5° grid.
- Sea temperature: NOAA OISST v2.1 monthly normals 1991–2020, nearest ocean cell 10.7 km away.
- Beach outline, surface, rules and public facilities: OpenStreetMap contributors (ODbL), feature w237819154; restaurants, cafés, bars and lodging: Overture Maps places (CDLA-Permissive-2.0).
- Towns and time zone: GeoNames (CC BY 4.0). Airports: OurAirports (public domain). Sunrise and sunset: NOAA solar equations.
- Photos: Wikimedia Commons, author and licence under each image.
- Satellite view: Copernicus Sentinel-2 (ESA), scene S2B_35TQF_20230713_0_L2A.
- Orientation: OpenStreetMap land polygons (ODbL). Depth and terrain: GEBCO 2020 grid.
- Settlements: GeoNames places with 1,000+ inhabitants.
- Land cover: ESA WorldCover 2021, 10 m (CC BY 4.0).
- Search popularity: about 8.1K Google searches a month for the name (KeywordTool, October 2026).
Data compiled 2026-10-13. Something wrong? Report a data error.