If you planning to travel to Jigokudani Monkey 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 9:53 PM. The temperature feels like 7.85 with a humidity level of 80 so dress accordingly. Cloud coverage is 54 percent with visibility at 6 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 11 MPH. At the end of the day don’t miss the sunset at 8:12 AM.