Some deserts are than others.
Two of the driest are the Atacama Desert in South America and the Namib Desert in Africa. For one thing, ocean currents keep clouds just off the coast, so most rain falls into the nearby ocean. These currents do bring fog to the deserts, though, which some people use for water. Dakhla, in the western Sahara Desert. This boat crashed in 1909, at a place that used to be the shoreline.