There are no deserts, including coastal deserts, in Japan.
Yes, a number of species of cacti can be found in coastal deserts in the Americas only.
Brazil has no true deserts, only a few regions of coastal sand dunes that resemble deserts.
Both South America (Atacama and Sechura) and Africa (Namib) have cool coastal deserts.
Hot subtropical desertsCold winter deserts Cold polar deserts Cool coastal deserts
Not all deserts are hot. There are also polar deserts, cold winter deserts as well as cool coastal deserts.
For a list of the major deserts of the world and their locations, click on this link.
Cool coastal Deserts:Atacama DesertSechura DesertNamib DesertThey are kept cooled by off-shore cool ocean currents.
The only coastal desert in Chile is the Atacama Desert.
Hot subtropical desertsCold winter deserts Cold polar deserts Cool coastal deserts
About 2/3s the deserts are hot. Others are classified as cold deserts, cool coastal deserts or cold winter deserts.
Deserts are near the sea at many locations. Both the Atacama and Namib Deserts are on the coast. Parts of the Sonoran Desert extend to the sea. The Patagonian Desert, Arabian Desert and Sahara are at or near the coastline.