United States Coastal Region

Massachusetts Sea Water Temperature

Compare sea surface temperatures across 135 top coastal destinations in Massachusetts. Check below for live marine observations, wave conditions, and monthly averages.

Beaches & Swimming Spots in Massachusetts— page 1 of 6

James Bay

American Legion Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →
James Bay

Ballston Beach

A cool beach on the James Bay, warmest around August at about 19.7°C.

Historical Sep Avg:18°C(64.4°F)
View SST →
James Bay

Barlow's Landing Beach

A temperate beach on the James Bay, warmest around August at about 21.8°C.

Historical Sep Avg:20.2°C(68.4°F)
View SST →
James Bay

Bay View Street Beach

A cool beach on the James Bay, warmest around August at about 21.3°C.

Historical Sep Avg:19.6°C(67.3°F)
View SST →
James Bay

Black Beach

A cool beach on the James Bay, warmest around August at about 18.9°C.

Historical Sep Avg:17.5°C(63.5°F)
View SST →
James Bay

Black Rock Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →
James Bay

Cahoon Hollow Beach

A cool beach on the James Bay, warmest around August at about 20.1°C.

Historical Sep Avg:18.3°C(64.9°F)
View SST →
James Bay

Canoe Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →
James Bay

Cape Hedge Beach

A cool beach on the James Bay, warmest around August at about 18.9°C.

Historical Sep Avg:17.5°C(63.5°F)
View SST →
James Bay

Carson Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →
James Bay

Cedar Island

A temperate beach on the James Bay, warmest around August at about 21.8°C.

Historical Sep Avg:20.2°C(68.4°F)
View SST →
Coastal Waters

Childrens Beach

A cool beach on the Coastal Waters, warmest around August at about 20.6°C.

Historical Sep Avg:19.1°C(66.4°F)
View SST →
James Bay

Christian Camp Meeting Beach

A cool beach on the James Bay, warmest around August at about 21.3°C.

Historical Sep Avg:19.6°C(67.3°F)
View SST →
Coastal Waters

Clean Shore

A cool beach on the Coastal Waters, warmest around August at about 20.6°C.

Historical Sep Avg:19.1°C(66.4°F)
View SST →
Coastal Waters

Cliff Beach

A cool beach on the Coastal Waters, warmest around August at about 20.6°C.

Historical Sep Avg:19.1°C(66.4°F)
View SST →
James Bay

Coast Guard Beach

A cool beach on the James Bay, warmest around August at about 20.1°C.

Historical Sep Avg:18.3°C(64.9°F)
View SST →
James Bay

Collins Cove Beach

A cool beach on the James Bay, warmest around August at about 18.9°C.

Historical Sep Avg:17.5°C(63.5°F)
View SST →
James Bay

Cooks Brook Beach

A cool beach on the James Bay, warmest around August at about 20.4°C.

Historical Sep Avg:18.6°C(65.5°F)
View SST →
James Bay

Corinha Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →
James Bay

Craigville Beach

A cool beach on the James Bay, warmest around August at about 21.3°C.

Historical Sep Avg:19.6°C(67.3°F)
View SST →
James Bay

Crane Beach

A cool beach on the James Bay, warmest around August at about 18.9°C.

Historical Sep Avg:17.5°C(63.5°F)
View SST →
James Bay

Crescent Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →
James Bay

Crescent Beach

A temperate beach on the James Bay, warmest around August at about 21.4°C.

Historical Sep Avg:19.9°C(67.8°F)
View SST →
James Bay

Crystal Beach

A cool beach on the James Bay, warmest around August at about 19°C.

Historical Sep Avg:17.6°C(63.7°F)
View SST →