In the beginning of June in Sapporo, the weather gives us the impression of summer coming. The highest temperature during the day is around 20 degrees, but sometimes it reaches 25 or more because of high pressure mass air or other weather conditions. The lowest temperature during the day is around 10 degrees. It’s usual for the temperature to differ day by day. You may feel it’s hot one day, but chilly the next. Wearing short-sleeves or t-shirt is ok in the sunshine but a long sleeved shirt is still quite necessary. There is relatively little rain in this period.