Sea temperature - Rijeka

The city of Rijeka is known for its high amount of rainfall, which is why the sea temperature and salinity in Rijeka are lower than the Croatian average. The sea temperature in Rijeka is ideal for swimming during the summer months of July and August, but during the rest of the year, the sea temperature in Rijeka can be too low for swimming. The sea temperature in Rijeka is lower than the average sea temperature in Croatia, due to the fact that Rijeka is located on the northern Adriatic, which is colder than the southern Adriatic and the sea temperature in Dalmatia. The sea temperature in Rijeka is similar to the sea temperature in Opatija and the sea temperature in Crikvenica.