If you planning to travel to Karuizawa Ohga 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 7:44 PM. The temperature feels like 51.35 with a humidity level of 82 so dress accordingly. Cloud coverage is 78 percent with visibility at 8 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 3 MPH. At the end of the day don’t miss the sunset at 9:41 AM.