Do you need special mortar or glue to lay ceramic tiles outside?
+1
Suggested Project Book
Use a polymer-modified, dry-set mortar adhesive that's rated for outdoor use.
Latex modified mortar mix.
Make sure it is for outdoor use. Your tiles will crack if not.
Agree with William, use exterior rated tile for your area. Usually porcelain non slip. Are you going over concrete or wood. Make sure if wood you use the correct uderlayment and enough thickness to hold the tile. Floor can have no bounce. Floor studs should be beefed up nd have at least 1 1/4 " subfloor.