How to Prepare Softshell Crab Author:PMY EditorsUpdated:Sep 19, 2017Original:May 23, 2012 Guest of HonorSoftshell crabs are available from spring until fall in the eastern U.S., but they’re at their plump best in June, July, and August.Thanks to Zack Redin at Rowayton Seafood in Rowayton, Connecticut.