It is very important to know a few things about the weather in Sweden, because it is a bit special. Sweden is a country with four distinct seasons. Spring runs from April to May, summer from June to August, fall from September to October and winter from November to March.
The temperature can vary from minus 20 degrees Celsius in the winter to about plus 25 degrees Celsius in the summer. In the area where Mid Sweden University is located there is always snow in the winter, so remember to bring warm clothes (e.g. gloves, a hat and warm shoes).