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 3 of 6

James Bay

Greystone Beach

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

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

Gun 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)
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James Bay

Haigis Beach

A cool beach on the James Bay, warmest around August at about 20.9°C.

Historical Sep Avg:19.2°C(66.6°F)
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James Bay

Hampton Beach

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

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

Hardings Beach

A cool beach on the James Bay, warmest around August at about 20.2°C.

Historical Sep Avg:18.5°C(65.3°F)
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James Bay

Heron Beach

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

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

Herring 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)
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James Bay

Highland Beach

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

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

Hull Village Beach

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

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

Juniper 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)
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James Bay

Keyes 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)
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James Bay

Kings Beach

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

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

L Street Beach

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

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

Lake Street Beach

A cool beach on the James Bay, warmest around August at about 19.3°C.

Historical Sep Avg:17.8°C(64°F)
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James Bay

Lamberts Cove Beach

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

Historical Sep Avg:20°C(68°F)
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James Bay

Lingan Street Beach

A cool beach on the James Bay, warmest around August at about 19.3°C.

Historical Sep Avg:17.8°C(64°F)
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James Bay

Little Beach

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

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

Longnook Beach

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

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

Lynch Park 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)
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James Bay

Lynn Beach

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

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

M Street Beach

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

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

Marconi 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)
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James Bay

Medeiros 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)
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James Bay

Menahaunt 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)
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