You have to remember that Qatar is a conservative Muslim Country by Law, but as with most places a lot of the rules are bent here.

The one thing you have to remember which was states before you do not want to wear something that is to revealing so that people do not give you a hard time. For females you can wear whatever you want but then you have to deal with the after math of having inappropriate comments being made and in some cases harassment from both the people and the police.

For men its is a lot easier but some times the same problems arise.

So the best advice i can give is that you dress for the summer but nothing to revealing.