From galveston jettys to sabine jettys bull reds are around all year long. Largest numbers in the fall. Mouth of the brazos also keeps bull reds around all year. Most other areas in Texas will start seeing schools of bull reds around the full moon in August, with the largest numbers in October around the full moon. They will hang around South Texas until mid december. But stay on the upper coast all winter long. They stage all winter long off the beachs around High Island, Sea Rim and crystal beach.jimpopular said:when do the big reds start showing up in the surf in large numbers?