Average monthly water temperature in Opatija, Croatia
On this page you find the mean water temperature over the year in Opatija (Istria), Croatia. Take a closer look at the water temperature patterns and what they mean for swimming and recreation.
In Opatija, water temperatures vary throughout the year. The warmest month is August, with an average water temperature of 25°C (77°F).
The coldest month is January, with an average temperature of 11°C (52°F). These seasonal variations make Opatija a great destination for different kinds of aquatic activities.
Opatija Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Opatija - and find the best time to visit.
Opatija 3-Day Forecast
Temperature Rainfall Sunshine Humidity Water Temp
See the full Opatija climate overview or explore weather in Croatia.
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