Polar plungers might linger in the harbor a second longer come Sunday.
The Plunge Day high temperature is expected to be 51.
That's 16 degrees warmer than the typical January day's high temperature.
The water is warmer this year, too.
The latest ocean temperature for Boston registered almost 44 degrees, or about 4 degrees warmer than the 40 degrees typical for Boston waters in January.
On New Year’s Day, a human wave will converge on the surf at the Swampscott Yacht Club's 6th Annual SYC Polar Bear Plunge.
The last five years the plunge has raised more than $50,000 for local charities.
This year's plunge will benefit the Swampscott Education Foundation.
The Foundation funds creative and innovative ideas that enrich the curriculum in Swampscott public schools.
For information about the event visit the Swampscott Yacht Club’s website at swampscottyachtclub.org, or by emailing firstname.lastname@example.org.
Sign-in begins Jan. 1, at 10:15 am, at Fisherman’s Beach/Swampscott Yacht Club. The plunge starts promptly at 11 — about low tide on Sunday.