[carlosjobim]

June/July is the peak season in Scandinavia for restaurants. I have never heard of a Nordic restaurant that closes in those months, although many close after August outside of the cities. June/July is when they make their money.

[piva00]

Definitely not what I experience in Stockholm, in July quite a few of the restaurants I tend to go are closed.

[Hikikomori]

Many of my favorite lunch places in Stockholm closes some weeks over the summer, typically first weeks in August but earlier as well.

[dagw]

I have never heard of a Nordic restaurant that closes in those months

Lots of restaurants in that mainly cater to lunch guests close for at least a few weeks during those months, since 90+% of their customer base are away and they get very few tourists.