Croatia Sea Temperature — Live & Monthly Averages

Live sea temperatures for the Croatian Adriatic coast. 30-year monthly averages for 22 coastal destinations including Dubrovnik, Split, Hvar and Zadar. Updated every 30 minutes.

Croatia sea temperature guide. The Adriatic Sea warms to 26–28°C in July–August, the best months for swimming. In June temperatures reach 22–24°C. September offers 25°C water with fewer crowds.