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Aerial satellite view of Winthrop Jetty surf break in Massachusetts North-South Shore, Massachusetts, United States
Massachusetts North-South Shore, Massachusetts, United States

Winthrop Jetty

42.371, -70.967
Edited by Thomas Jackson
Verified May 2026
Cross-referencedCross-checked against 1 reference
Right · MixedBeginner → Intermediate2–6 ftJan – Dec

The closest surf spot to downtown Boston, Winthrop Jetty produces predominantly right-handers off a large jetty at the southern end of Winthrop Beach, breaking over a cobblestone bottom. It needs an E to NE swell with W winds, and performs best from mid to high tide when waves wrap close to the structure with decent shape. At low tide, the swell hits outside shoals first, producing smaller, weaker reforms that aren't worth the paddle. The wave suits beginners and intermediates who don't mind urban surroundings and a lineup that rarely gets crowded due to medium consistency. Bottom: cobblestone. Season: fall and winter nor'easters. Consistency: medium. Water quality is a genuine concern, particularly after rain, when stormwater runoff into Boston Harbor makes this one to skip. Wetsuit up year-round. New England water temps demand at least a 4/3 in winter.

Wave fit

Skill suited
Beginner → Intermediate
BegIntAdv
Best months
Jan – Dec
J
F
M
A
M
J
J
A
S
O
N
D
Character
Short punchy right-hand jetty break over cobblestone.

Conditions

When it works
NESW
Swell window
NE
NE - E
Offshore wind
W
Westerly
Optimum tide
All tides
Size range
2-8ft
Medium
Hazards
No concerns
Trip planning

Quick facts

Water temp
2° to 20°C
Wetsuit
4/3 to 5/4 + booties in winter, 3/2 summer
What to bring
  • Longboard or mid-length for small days
  • Shortboard 6ft to 6ft 6in for better swells
Lineup
Mellow lineup
Where it sits

Location

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About this break

What it's actually like

Crowd & Localism

Consistency is only medium, and being an urban beach break near Boston, the lineup is rarely crowded when it does fire. No significant localism reported. The spot is accessible enough that it draws a mix of beginners and improvers, particularly on small clean days.

Access & Facilities

Free parking is available nearby. Lifeguards are present in season. The jetty and beach are straightforward to access from Winthrop township. Avoid surfing here in the 48-72 hours following heavy rain due to stormwater pollution entering the harbor. Boston Harbor has improved significantly since old sewage infrastructure was replaced, but runoff is still a real issue.

Nearby Alternatives

When Winthrop Jetty is flat or blown out, the Massachusetts North Shore has more consistent options that pick up swell more reliably. Breaks around Gloucester and Rockport benefit from the same NE swell window with fewer pollution concerns.

10-day swell, wind and tide

Winthrop Jetty surf forecast

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Forecast by Windy.app

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Frequently asked

Before you paddle out

Winthrop Jetty is a mixed break suited for beginner to intermediate surfers. Confident beginners can give it a go on small days.
Winthrop Jetty
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