Typically, you can expect that the weather in Opatija during the month of April is 12 with a general average high of 18 and low of 10 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 12 |
| High Temperature | 18 |
| Low Temperature | 10 |
Useful Links: Opatija Weather: Average Weather & Yearly Climate