So, what can a woman wear in Marrakech? For a visitor to the country, you're ok wearing what you like, there is no strict rule. However, just dress reasonably conservatively and you'll have no problem. You'll find plenty of Marrakech clothing stalls in the souks to pick up anything you need on the go.
Do I need to cover my hair in Marrakech?
When visiting mosques, female travellers should wear clothing that covers from ankle to elbow, as well as covering decolletage. It's also important to cover your hair with a scarf. Don't worry if it's not expertly wrapped – a few stray strands hanging out from beneath the scarf won't bother anyone.