If you planning to travel to Muro Saisei Memorial Hall, Karuizawa, 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 21.85 with a humidity level of 58 so dress accordingly. Cloud coverage is 20 percent with visibility at 1.3 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 10 MPH. At the end of the day don’t miss the sunset at 7:38 AM.