Is Lima Peru a coastal desert?
Yes it is. Much of the west coast of South America is a coastal desert thanks to three factors: the Andes mountains blocking rain from the Amazon area to the east, air masses that move from the South Pacific high-pressure system to the coast don’t bring much rain, and the Peru Current (also called the Humboldt Current) brings cold water towards the coast which doesn’t help any with the lack of moisture in the area. But Lima, like some other major cities, is built by an oasis so it doesn’t feel the effects so badly.