What is the weather like in Opatija right now?
It is currently 30°C in Opatija with mainly clear. It feels like 36°C, humidity is 64% and the wind is SE 5 km/h.
Today (Saturday) reaches a maximum of 31°C and a minimum of 24°C, with 0 mm of rain and 11.5 hours of sunshine. Sunrise is at 06:20 and sunset at 19:46.
Opatija weather tomorrow
Tomorrow (Sunday) the maximum temperature in Opatija is 33°C and the minimum 24°C. Around 0 mm of rain is expected with 12.2 hours of sunshine, and the chance of rain is 0%. 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 31°C and the average minimum around 21°C. Roughly 0 mm of rain is expected, spread across 0 days, with 3 largely sunny days.
The warmest day in the 14 day forecast for Opatija is Sunday 30 Aug at 33°C. The coldest night falls on Wednesday 2 Sept at 19°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 6 — high enough to warrant sun protection in the middle of the day.
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: 29 August 2026 at 14:25. See also all Croatia forecasts and the European weather map.