United States Coastal Region

Connecticut Sea Water Temperature

Compare sea surface temperatures across 81 top coastal destinations in Connecticut. Check below for live marine observations, wave conditions, and monthly averages.

Beaches & Swimming Spots in Connecticut— page 3 of 4

James Bay

Morningside Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Nauyaug Coast

A temperate beach on the James Bay, warmest around August at about 20.8°C.

Historical Sep Avg:19.7°C(67.5°F)
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James Bay

Ocean Beach

A temperate beach on the James Bay, warmest around August at about 21.7°C.

Historical Sep Avg:20.4°C(68.7°F)
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James Bay

Old Mill Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Osprey Beach

A temperate beach on the James Bay, warmest around August at about 21.7°C.

Historical Sep Avg:20.4°C(68.7°F)
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James Bay

Oyster River Beach

A temperate beach on the James Bay, warmest around August at about 23.2°C.

Historical Sep Avg:22.1°C(71.8°F)
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James Bay

Penfield Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Pleasure Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Plum Bank Beach

A temperate beach on the James Bay, warmest around August at about 22.1°C.

Historical Sep Avg:20.9°C(69.6°F)
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James Bay

Poverty Island Beach

A temperate beach on the James Bay, warmest around August at about 22.1°C.

Historical Sep Avg:20.9°C(69.6°F)
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James Bay

Prospect Beach

A temperate beach on the James Bay, warmest around August at about 23.2°C.

Historical Sep Avg:22.1°C(71.8°F)
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James Bay

Quotonset Beach

A temperate beach on the James Bay, warmest around August at about 22.1°C.

Historical Sep Avg:20.9°C(69.6°F)
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James Bay

Rocky Beach

A temperate beach on the James Bay, warmest around August at about 23.2°C.

Historical Sep Avg:22.1°C(71.8°F)
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James Bay

Rowayton Community Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Sasco Hill Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Sea Bluff Beach

A temperate beach on the James Bay, warmest around August at about 23.2°C.

Historical Sep Avg:22.1°C(71.8°F)
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James Bay

Seaside Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Shell Beach

A temperate beach on the James Bay, warmest around August at about 23.2°C.

Historical Sep Avg:22.1°C(71.8°F)
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James Bay

Shennecossett Beach

A temperate beach on the James Bay, warmest around August at about 21.7°C.

Historical Sep Avg:20.4°C(68.7°F)
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James Bay

Short Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Silver Sands Beach

A temperate beach on the James Bay, warmest around August at about 23.2°C.

Historical Sep Avg:22.1°C(71.8°F)
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James Bay

Soundview Beach

A temperate beach on the James Bay, warmest around August at about 22.1°C.

Historical Sep Avg:20.9°C(69.6°F)
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James Bay

South Pine Creek Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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James Bay

Southport Beach

A temperate beach on the James Bay, warmest around August at about 23.4°C.

Historical Sep Avg:22.3°C(72.1°F)
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