If you planning to travel to The 4th Tunnel, Haean, 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 10:27 PM. The temperature feels like 22.35 with a humidity level of 71 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.9 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 9 MPH. At the end of the day don’t miss the sunset at 8:09 AM.