A lack of water meant the lifeboat could not get too close to the man so two members of the team got off the vessel and made their way to him through the mud.
Once the man was freed he was taken back to the lifeboat, which then returned to Silloth.
A rescue helicopter launched from Prestwick was involved in the rescue, as were the Coastguard teams from Burgh by Sands and Maryport. Cumbria Fire and Rescue Service also attended.
The lifeboat was launched at 1:58pm yesterday and reached the casualty at approximately. 2:20pm. it arrived back in Silloth at 3:15pm.
A spokesperson for the crew said: