The Montenegrin coast measures 293 km of which 73 km are beaches, sandy beaches comprise 33 km. The coastline has the four main rivieras: The Tivat Riviera, The Kotor Riviera, The Ulcinj Riviera and The Bar Riviera. Each of them has a lot of beautiful beaches.
An average annual temperature of the water is 18.9°C. The coldest sea is throughout the winter, when the temperature is about 13°C. The coolest water is in February. In the spring, the sea becomes warmer and in the summer, the temperature reaches around up to 22°C to 25°C, in the south may also reach 27°C. In greater depths, the temperature is mostly constant throughout the year.
The Adriatic Sea is about 500 miles (800 km) long with an average width of 180 km. It has an area of approximately 51.000 square miles (132 000 km2). This area comprises about one fifth of the Mediterranean Sea.
The northern part of the Adriatic is shallow, the depth may reach only 23 metres (Gulf of Tert), towards the south the depth decrease by 1330 metres. Deeper part of the Adriatic occupies also the Montenegrin coast. The sea bottom descends abruptly here into so-called South Adriatic valley. It is 300 km long and 80 km wide. In the more distant and south-western parts of the town Herceg Novi, the Adriatic is deepest about 1330 metres. The sea bottom has a broken relief, its form is a result of tectonic processes, sea tides or erosion. The rough areas have been changing under the influence of the sedimentation and the process is slow and continual.