It can’t all be about food 😉
The Swedish summer is quite short (June-August), but the days are looooong sometimes there is light 24/7 (and in the north you can see the midnight sun). July is the month when most people finally get their vacation, up to five weeks, (the thing everyone has waited for a whole year…).
Swedish summer is all about nature, being free, and relaxing. Common activities are going to the summer cottage, boating, swimming (even if the water sometimes is cold…), hiking, canoeing, riding day trails, eating, relaxing and sightseeing etc. Many also take the opportunity to go abroad (this is the most expensive period to travel to and from Sweden, mainly because families can travel because the children are free from school from mid June until mid August).
Personally I feel that this is the best time to be in Sweden (but even I go abroad sometimes despite all the beauty here)…