If you planning to travel to Hachiman-para Historic Park, Nagano, 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 10:00 PM. The temperature feels like 22.2 with a humidity level of 93 so dress accordingly. Cloud coverage is 75 percent with visibility at 4.8 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 4 MPH. At the end of the day don’t miss the sunset at 7:43 AM.