Normally weather temperatures in Opatija right-through June is 21. Through the month the highs are about 27 with lows of 18. See our table below for a full breakdown:
| Month | Degrees Celsius |
|---|---|
| Temperature | 21 |
| High Temperature | 27 |
| Low Temperature | 18 |
Useful Links: Opatija Weather: Average Weather & Yearly Climate