Climate almanac
Opatija
Primorje-Gorski Kotar, Croatia · 45.34°, 14.31°
What is the weather like in Opatija in September?
In September, Opatija is typically 71°F (22°C) during the day and 60°F (16°C) at night. The month brings about 9.8 in (248 mm) of precipitation in total.
- Average high71°F (22°C)
- Average low60°F (16°C)
- Precipitation9.8 in (248 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)