If you planning to travel to Karuizawa Flower Museum, 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 7:32 PM. The temperature feels like 60.45 with a humidity level of 84 so dress accordingly. Cloud coverage is 73 percent with visibility at 6 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 5 MPH. At the end of the day don’t miss the sunset at 9:53 AM.