If you planning to travel to St. John's Fortress, Sibenik, Croatia, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 6:26 AM. The temperature feels like 47.650000000000006 with a humidity level of 62 so dress accordingly. Cloud coverage is 79 percent with visibility at -- percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 14 MPH. At the end of the day don’t miss the sunset at 3:24 PM.