Sea Temperature in Rovinj in September

© Klaus Winstel

Complete information on the sea temperature range in the Adriatic Sea in Rovinj in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Rovinj. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Rovinj Climate and Swimming Opportunities in September

Rovinj lies within the Istria County in Croatia. The average daytime temperature in Rovinj in September is 24°C (75°F), while the nighttime average is 16°C (60°F). There are typically 10 rainy days during the month, with a total precipitation of 86 mm (3.4 inches). The daylight duration in September in Rovinj is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 10 km/h (6 mph), and the humidity level is around 71%.

The water temperature in Rovinj in September ranges from 21°C to 25°C (70°F to 77°F). At the beginning of the month, the average temperature is around 25°C (77°F), shifting to 24°C (75°F) by mid-September and reaching 22°C (72°F) in the last ten days. Overall, the average sea temperature in Rovinj for September is 24°C (75°F). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.

Frequently Asked Questions About Water Temperatures in September in Rovinj