Opatija Weather & Climate: Best Time to Visit
Opatija knows a soft and mild mediterranean sea climate. Keep in mind that the precipitation is higher than in the rest of Croatia.
Monthly Temperature in Opatija
The climate in Opatija is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in August to a chilly 7°C (45°F) in the coolest month, January.
Nights vary from 18°C (64°F) in August to around 1°C (34°F) during the colder months.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Opatija
Opatija has a notably wet climate with abundant precipitation, recording 1925 mm (76 in) of rain/snowfall per year. The climate in Opatija shows significant variation throughout the year. Expect heavy rainfall in November, the wettest month, with an average of 250 mm (9.8 in) of precipitation over 14 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 101 mm (4 in) of rainfall over 12 rainy days. For more details, please visit our Opatija Precipitation page.The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Opatija
For those who appreciate different seasons, Opatija serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.9 hours of sunshine daily, and embrace the darker days in December, offering only 3.3 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Opatija
The mean water temperature over the year ranges from 11°C (52°F) in January to 25°C (77°F) in August.
Water temperature over the year
Humidity in Opatija by Month
The relative humidity is high throughout the year in Opatija.
The city experiences its highest humidity in November, reaching 67%. In July, the humidity drops to its lowest level at 56%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Opatija 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Opatija
Opatija's weather is most enjoyable during May, June, July and August, with comfortable temperatures from 20°C (68°F) to 27°C (80°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 101 mm (4 in) and 141 mm (5.6 in), providing a good balance of sunny and rainy days.The wettest months are September, October, November and December, when precipitation is at its highest. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
