If you planning to travel to Kusatsu Onsen, Kusatsu, 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 10:00 PM. The temperature feels like 19.950000000000003 with a humidity level of 64 so dress accordingly. Cloud coverage is 9 percent with visibility at 8 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 7 MPH. At the end of the day don’t miss the sunset at 7:43 AM.