Appearance is extremely important to Spaniards. They dress elegantly, even for casual occasions. Spanish made clothes tend to be high quality and reasonably priced. Avoid bright or flashy colours. Shoes are the most important element of dress.
 

When visiting cities especially you may not want to look like a tourist. Dress conservatively. Girls who wear mini-skirts and bikini tops will be frowned upon and will certainly attract unwanted attention. Long dresses or skirts are fine, as are trousers.

It's almost the same in the UAE, you can wear anything as long as it will cover everything from shoulders to knees and avoid too tight or see through clothes. 

What Should I Wear? . (n.d.). Retrieved April 2016, 15, from journeywoman: http://www.journeywoman.com/ccc/ccc-s2.html

• Dress codes