Arraial

{{Infobox settlement

| official_name = Arraial | other_name = | native_name = | nickname = | settlement_type = Municipality | motto = | image_skyline = | imagesize = | image_caption = | image_flag = | flag_size = | image_seal = | seal_size = | image_map = Piaui Municip Arraial.svg | mapsize = | map_caption = | pushpin_map = | pushpin_label_position = bottom | pushpin_map_caption = Location in Brazil | subdivision_type = Country | subdivision_name = | subdivision_type1 = Region | subdivision_name1 = Nordeste | subdivision_type2 = State | subdivision_name2 = Piauí | subdivision_type3 = Mesoregion | subdivision_name3 = Centro-Norte Piauiense | subdivision_type4 = Microregion | subdivision_name4 = Medio Parnaíba Piauiense | government_footnotes = | government_type = | leader_title = | leader_name = | established_title = Established | established_date = 9 December 1964 | area_magnitude = | unit_pref = Imperial | area_footnotes = | area_total_km2 = 635.818 | area_land_km2 =