Portorož is situated on the Adriatic coast right next to Piran.
The earliest written reports about curative uses of sea water, brine and salt pan mud at Portorož date from the 13th century.
Portorož belonged to Venice until 1797 when it came under Austrian rule. It remained with Austria, with the exception of the French occupation between 1806 and 1813,
until the end of World War I in 1918. After World War I Portorož became part of Italy. After World War II, it became part of Yugoslavia.
Today, Portorož is one of the most popular health and sea-side resorts of Slovenia.