Many pirates from the cold and wet places in Europe would have been very light skinned indeed just like any number of young lads wandering around in places like the UK right now. When on holiday, even in close by Spain, some of us fry without factor 30 so how did pirates get on in even hotter places without sunscreen? Didn't ginger john who probably never left 1700's Bristol have an awful time when he found himself at the equator - Or did they have ways of preventing skin damage?
This has actually been asked before.
https://reddit.com/r/AskHistorians/comments/36dyap/how_did_sailors_in_the_golden_age_of_piracy_deal/
"Ideally, sailors would deal with sunburn by not getting it. Traditional dress for sailors would include loose pants, long-sleeved shirts and broad-brimmed hats, and sailors would stay out of the sun under awnings and other shade if possible. When they inevitably did get sunburned, they could use a salve of some kind of grease (often "slush" from cooking kettles) to help with the pain/blistering. Many no doubt just burned until they became deeply tanned, in the manner of sailors today. Also, the thread u/kentonj linked elsewhere deals with long-term effects (on mobile, can't link to it directly)."
if you are really interested in Pirates check out The Republic of Pirates: Being the True and Surprising Story of the Caribbean Pirates and the Man Who Brought Them Down
Woodard is a spectacular story teller and he goes into great detail about the Caribbean Pirates and their day to day lives.
In general, people in the past were outside a great deal more than us and wore more clothing to protect themselve from the elements. Wool was favored because it was durable and cheap-- cotton and linen were used for lighter garments. Sailors of the early 19th century wore trousers, vests, short jackets or frocks, neck cloths, and a head covering of some sort. They went barefoot even in freezing weather, to better grip the footlines aloft. If you go back into the 18th and 17th centuries, sailors were wearing some variation of this short jacket, waistcoat and breeches, or the iconic wide petticoat breeches (often worn over tighter pants to protect them from tar etc.) Striped shirts actually go back to a garment known as a Gursey Frock-- essentially a wool sweater, http://usscm.blogspot.com/2014/11/frock-on.html which appeared in the late 18th century. That's rather late for pirates-- the Golden Age of piracy was during the mid- 17th century. For further reading on the earlier period I recommend "The Sea Rover's Practice" by Benerson Little, which goes into the nuts and bolts of pirate tactics and life.
follow up:
Im lebanese and one of the local myths, is that Greeks called the Phoenicians by that name, because after they sailed for so long, they would have a reddish color on their faces... Is there any truth to that?
Wasn't it true pirates used gold teeth so that they were able to pay for there on burial or funeral