>>119493I forgot to mention that you can easily choose a route where you do not need to cross any glacier. Only the last 100 m was ice/snow covered when I was there in August 2006.
When I walked to the top I met everything between 8 year olds and 70 year olds. So it is pretty easy.
Another protip for Kungsleden is walking from south to north and NOT the other way around. Then you will have the sun in your back instead of in your eyes the whole day. And the scenery is prettier when you have the sun behind you.
Pic is the top of Kebnekaise