Kocaeli Province — Water Temperature Today and Throughout the Year
Discover water temperatures in Kocaeli Province (Turkey), with real-time data and annual trends. Find all locations in the region and check the water temperature in them. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature in Lakes and Rivers
Popular Lakes
Water Temperature and Swimming Overview
Regions and Map
- Adana Province
- Adıyaman Province
- Afyonkarahisar Province
- Ağrı Province
- Aksaray Province
- Amasya Province
- Ankara Province
- Antalya Province
- Ardahan Province
- Artvin Province
- Aydın Province
- Balıkesir Province
- Bartın Province
- Batman Province
- Bilecik Province
- Bingöl Province
- Bitlis Province
- Bolu Province
- Burdur Province
- Bursa Province
- Çanakkale Province
- Çankırı Province
- Çorum Province
- Denizli Province
- Diyarbakır Province
- Düzce Province
- Edirne Province
- Elazığ Province
- Erzincan Province
- Erzurum Province
- Eskişehir Province
- Gaziantep Province
- Giresun Province
- Gümüşhane Province
- Hatay Province
- Iğdır Province
- Isparta Province
- Istanbul Province
- İzmir Province
- Kahramanmaraş Province
- Karabük Province
- Karaman Province
- Kars Province
- Kastamonu Province
- Kayseri Province
- Kilis Province
- Kırıkkale Province
- Kırklareli Province
- Kırşehir Province
- Kocaeli Province
- Konya Province
- Kütahya Province
- Malatya Province
- Manisa Province
- Mardin Province
- Mersin Province
- Muğla Province
- Muş Province
- Nevşehir Province
- Niğde Province
- Ordu Province
- Osmaniye Province
- Rize Province
- Sakarya Province
- Samsun Province
- Şanlıurfa Province
- Siirt Province
- Sinop Province
- Sivas Province
- Şırnak Province
- Tekirdağ Province
- Tokat Province
- Trabzon Province
- Tunceli Province
- Uşak Province
- Van Province
- Yalova Province
- Yozgat Province
- Zonguldak Province
Water Temperature Trends
Kocaeli Province, located in the northwestern part of Turkey, along the coast of the Sea of Marmara, experiences a relatively mild climate compared to other coastal regions. During the summer months, the water temperature along the Kocaeli coast typically ranges from 22°C to 25°C (72°F to 77°F), providing pleasant conditions for swimming and other water activities. This period, from June to August, is when the region is most popular among visitors looking to enjoy the warmer sea temperatures.
In early autumn, from September to October, the water remains warm, with temperatures ranging between 20°C and 23°C (68°F to 73°F). This makes it a great time for swimming, as the weather is still comfortable, and the sea retains much of the warmth accumulated during the summer months. As winter sets in, the water temperature begins to drop, reaching around 12°C to 15°C (54°F to 59°F) in November and December. While not ideal for swimming, these cooler temperatures attract fewer tourists, offering a quieter, more relaxed experience along the coast.
By spring, from March to May, the water temperature in Kocaeli rises gradually. In March, it can still be relatively chilly, ranging from 8°C to 12°C (46°F to 54°F), but by May, the water reaches a more comfortable range of 15°C to 18°C (59°F to 64°F), signaling the start of the warmer swimming season. While still cool for some, it’s an excellent time for those seeking a quieter, less crowded coastal experience before the peak summer months.