Massachusetts Beaches Closed on July 20 2026 – Every Site Listed

Early Monday morning the state’s interactive beach‑water‑quality dashboard flashed a stark warning: more than thirty public swimming spots were off‑limits. By the time the sun rose over Cape Cod, officials had confirmed that 31 Massachusetts beaches were closed.

Thirty of those closures were blamed on the same culprit – bacterial exceedances that can make a splash of trouble for swimmers. One oddball entry, listed simply as “Other,” turned out to be Damon Pond Beach in Ashby, managed by the Department of Conservation & Recreation.

What does this mean for beach‑goers? If you were planning a dip at a favorite spot, you’ll have to settle for a stroll on the sand or a picnic on the grass; the water itself is off‑limits until test results come back clean.

Below is the snapshot of the closures, grouped by town for easy reference. The list isn’t exhaustive in every detail, but it captures the bulk of the shut‑downs reported on July 20:

Amherst – Puffers Pond (Factory Hollow Pond) at both Mill Street and State Street.
Ashland – Hopkinton Reservoir – Main Beach (DCR).
Barnstable – Keyes Beach off Sea Street.
Beverly – Ward’s Beach, H. M. Sawyer State Beach, Collins Beach, Westside Beach.

Boston – Constitution Beach (all three access points) and Tenean Beach, both under DCR oversight.
Dartmouth – Moses Smith Creek.
Duxbury – Landing Road beach.

Holden – Eagle Lake.
Middleborough – Camp Yomechas.
North Andover – Frye Pond Beach (DCR).

Provincetown – Town Landing and Snail Road.
Quincy – Nickerson Beach.
Salem – Children’s Island (Back & Wally), Ocean Avenue, Willow Avenue.

That’s just a sampling; the full dashboard shows a handful of additional sites scattered from the South Shore to the Merrimack Valley, each flagged for bacterial levels that exceeded safety thresholds.

Why the sudden surge? Health officials point to a mix of heavy rains, runoff, and occasional sewage overflows that can dump E. coli and other coliform bacteria into waterways. The state tests water samples regularly, and when numbers cross the legal limit, the beach is closed until follow‑up tests prove it safe again.

For families, lake‑front campers, or anyone who lives for a salty breeze, it’s a disappointing pause. But the precaution is there for a reason – to keep swimmers from getting sick. The good news? Most closures are temporary. As water quality improves, the same dashboard will flip the status back to “Open,” and the crowds will return.

If you’re looking for an alternative spot, check the live map on the Mass DEP website; it updates hourly and will highlight any nearby beaches that passed the latest tests. Until then, pack a cooler, bring a blanket, and enjoy the shoreline from the grass. After all, the sea’s beauty isn’t limited to a dip in the water.