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 9:40 PM. The temperature feels like 40.45 with a humidity level of 89 so dress accordingly. Cloud coverage is 100 percent with visibility at 5 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 18 MPH. At the end of the day don’t miss the sunset at 9:37 AM.