The gulf is limited by an imaginary line connecting the Punta Tagliamento on the Italian and
Savudrija (
Punta Salvore) on the Croatian coast. Its area is approximately , its average depth is , and its maximum depth is . With the exception of flat islets blocking the entrance to
Marano-Grado lagoon, there are no islands in the gulf. Its eastern coasts, with
Trieste and the
Slovenian Littoral, have more rugged relief. The sea current in the gulf flows counterclockwise. Its average speed is 0.8
knots. Tides in the gulf are among the largest in the Adriatic Sea, but nevertheless do not usually exceed . The average
salinity is 37–38
‰, but in the summer it falls below 35‰. Its most prominent features are: • The
Bay of Panzano in Italy • The
Bay of Muggia in Italy • The
Bay of Grignano in Italy • The
Gulf of Koper in Slovenia • The
Gulf of Piran, the sovereignty over which has been a matter of dispute between Croatia and Slovenia since 1991. The entire
Slovenian coastline is located on the Gulf of Trieste. Its length is . Towns along the coastline include (from east to west)
Koper,
Izola, and
Piran. == See also ==