If you planning to travel to Genkai Underwater Observation Tower, Karatsu, Japan, 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 10:20 PM. The temperature feels like 35.599999999999994 with a humidity level of 54 so dress accordingly. Cloud coverage is 1 percent with visibility at 14.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 14 MPH. At the end of the day don’t miss the sunset at 8:16 AM.