If you planning to travel to Samyang Black Sand Beach, Jeju, South Korea, 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 10:03 PM. The temperature feels like 59.3 with a humidity level of 68 so dress accordingly. Cloud coverage is 53 percent with visibility at 12.3 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 11 MPH. At the end of the day don’t miss the sunset at 8:26 AM.