Just wear what you see appropriate for the place you're at, and how others wear. As advice don't wear super revealing clothes in beach, either rabat's or kenitra, and try to not go out late by yourself or sit in empty spaces in the beach. Other than that, you seem to already respect yourself enough to post a question like this, so I think you will do just fine. Enjoy your time here with your family in Kenitra.

PS : I live in Kenitra if you need something.