If you planning to travel to Asama Onsen, 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 9:35 PM. The temperature feels like 37.4 with a humidity level of 82 so dress accordingly. Cloud coverage is 31 percent with visibility at 12.1 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 4 MPH. At the end of the day don’t miss the sunset at 7:38 AM.