The temperatures in Opatija in October are quite cold with temperatures between 8°C and 16°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Opatija during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Opatija in October 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
16° / 8°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
153
mm
Sun Hours
10.0
Hrs