The partially-clothed woman is believed to be aged between 40 to 60 years and may have been in the water for several days.
She was spotted about 550 yards from the coast area at about noon and was recovered from the water by the Coastguard and Minehead Lifeboatmen.
Police are liaising with neighbouring forces along the Bristol Channel to see if the woman’s description matches any reported missing persons.
The dead woman was described as white, about 5 ft 7 ins tall, of medium to plump build, with short collar-length brown hair.
She was wearing calf length black zip-up leather boots and a brown coloured T-Line branded fleece jacket.
Police said a post mortem examination to determine her cause of death was due to be held later this week.
A spokesman said police were keeping an open mind on the woman’s death, pending the outcome of the post mortem.
Police want to hear from anybody who recognises the description of the woman or who has had a female family member or friend go missing during the past week.
Anybody able to help is asked to contact Taunton CID by calling 0845 4567000.
- Our photograph shows the lighthouse on Watchet Harbour sea wall. Photo by Ian Chilton.