If you planning to travel to Rathlin Island Ferry, Ballycastle, Northern Ireland, United Kingdom, 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 7:38 AM. The temperature feels like 57 with a humidity level of 88 so dress accordingly. Cloud coverage is 30 percent with visibility at 14.9 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 11 MPH. At the end of the day don’t miss the sunset at 4:34 PM.