The temperatures in Opatija in May are usually low and can range between 10°C and 19°C.
You can expect rain for roughly half of the month of May in Opatija. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Opatija in May 2025.
If you’re planning to visit Opatija in the near future, we highly recommend that you review the 14 day weather forecast for Opatija before you arrive.
Temperatures
19° / 10°
Rainy Days
12
Snowy Days
0
Dry Days
19
Rainfall
217
mm
Sun Hours
10.2
Hrs
