Hastings District Council has "closed" access to Clifton Beach due to predicted coastal swells of over two metres.
Council issued the statement at about 1.40pm Tuesday and said the temporary closure would remain in place for 48-hours.
"We will reassess the situation on Thursday 19 March," a spokesperson said.
MetService has a strong wind watch warning in place from 8am Tuesday to 4am Wednesday.
The Hawke's Bay ranges and exposed coastal areas are likely to be the most affected and may reach severe gale force winds as Gretel nears.