The portable beach stool comprises a leg and a seat. The portable beach stool may be adapted for a user to sit upon while at a beach. An auger at the bottom of the leg may be configured to bore into sand such that the leg may stand upright in the sand. The seat may detachably couple to a plurality of support struts located on the top half of the leg such that the seat is retained in a horizontal orientation above the leg. The plurality of support struts may collapse for transportation and storage when the seat is detached.