If you planning to travel to Hallasan National Park, 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 60.5 with a humidity level of 66 so dress accordingly. Cloud coverage is 64 percent with visibility at 12.7 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 10 MPH. At the end of the day don’t miss the sunset at 8:26 AM.