If you planning to travel to Koishikawa Botanical Garden, 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 9:45 PM. The temperature feels like 47.099999999999994 with a humidity level of 55 so dress accordingly. Cloud coverage is 27 percent with visibility at 14.9 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 8 MPH. At the end of the day don’t miss the sunset at 7:31 AM.