In the summer.
There is one of the most important festivals celebrated Festival: national day Sweden. (Sveriges Nationaldag) which corresponds to June 6 of every year people will participate in activities such as instrumental music. Speeches and dancing to the flag, etc., usually at various events, there will be a flag including a birthday celebration, but if it happens, it will decrease the distress flag half mast down.
Festivals and holidays at the range is near June 21 Midsommar people will celebrate the summer with dancing around the Maypole at the pole decorations with flowers and beautiful autumn leaves.