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 9:58 PM. The temperature feels like 26.95 with a humidity level of 72 so dress accordingly. Cloud coverage is 25 percent with visibility at 9.4 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 7:43 AM.