Click on a day for an hourly weather forecast
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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -2° | 10 | 16 | 4 | 195 mm | Awful | Opatija in January |
| February | 7° / -1° | 10 | 14 | 4 | 220 mm | Awful | Opatija in February |
| March | 10° / 2° | 8 | 21 | 2 | 172 mm | Awful | Opatija in March |
| April | 15° / 7° | 8 | 22 | 0 | 143 mm | Ok | Opatija in April |
| May | 19° / 10° | 12 | 19 | 0 | 217 mm | Ok | Opatija in May |
| June | 23° / 14° | 11 | 19 | 0 | 188 mm | Good | Opatija in June |
| July | 26° / 16° | 10 | 21 | 0 | 175 mm | Good | Opatija in July |
| August | 26° / 16° | 6 | 25 | 0 | 136 mm | Perfect | Opatija in August |
| September | 21° / 13° | 8 | 22 | 0 | 198 mm | Ok | Opatija in September |
| October | 16° / 8° | 6 | 25 | 0 | 153 mm | Good | Opatija in October |
| November | 11° / 5° | 10 | 20 | 0 | 242 mm | Bad | Opatija in November |
| December | 7° / 0° | 9 | 19 | 2 | 210 mm | Awful | Opatija in December |