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 10:01 PM. The temperature feels like 64.05 with a humidity level of 88 so dress accordingly. Cloud coverage is 92 percent with visibility at 9.9 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 8 MPH. At the end of the day don’t miss the sunset at 8:27 AM.