What is the weather like in Opatija right now?
It is currently 18°C in Opatija with cloudy. It feels like 16°C, humidity is 59% and the wind is WNW 9 km/h.
Today (Sunday) reaches a maximum of 22°C and a minimum of 17°C, with 0 mm of rain and 9.8 hours of sunshine. Sunrise is at 07:13 and sunset at 18:24.
Opatija weather tomorrow
Tomorrow (Monday) the maximum temperature in Opatija is 18°C and the minimum 14°C. Around 1.2 mm of rain is expected with 6.4 hours of sunshine, and the chance of rain is 58%. The data is refreshed several times a day through Open-Meteo.
Opatija weather this week and next week
Over the coming week the average maximum temperature in Opatija sits around 21°C and the average minimum around 13°C. Roughly 1.2 mm of rain is expected, spread across 1 day, with 0 largely sunny days.
The warmest day in the 14 day forecast for Opatija is Saturday 17 Oct at 24°C. The coldest night falls on Wednesday 21 Oct at 8°C. Click any day for hourly detail.
Rain, sunshine and UV in Opatija
A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Opatija is 4, which is low to moderate.
How reliable is a 14 day forecast?
The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.
Forecast for Opatija last updated: 11 October 2026 at 21:30. See also all Croatia forecasts and the European weather map.