United Kingdom Coastal Region

Cornwall Sea Water Temperature

Compare sea surface temperatures across 91 top coastal destinations in Cornwall. Check below for live marine observations, wave conditions, and monthly averages.

Beaches & Swimming Spots in Cornwall— page 4 of 4

Celtic Sea

Sennen Cove

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.8°C(60.4°F)
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Celtic Sea

Shorthorn Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.9°C.

Historical Sep Avg:16.2°C(61.2°F)
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Celtic Sea / Atlantic Ocean

St Ives (Porthmeor Beach)

Golden sand beaches and artist light on the tip of Cornwall with the UK's warmest ocean waters.

Historical Sep Avg:16.6°C(61.9°F)
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Celtic Sea

Stem

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

Summerleaze Beach

A temperate beach on the Celtic Sea, warmest around August at about 17°C.

Historical Sep Avg:16.6°C(61.9°F)
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Celtic Sea

Swanpool Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.6°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

The Bar (sand & shingle) tidal area

A temperate beach on the Celtic Sea, warmest around August at about 16.6°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

The Gannel

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

Tolcarne Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

Towan

A temperate beach on the Celtic Sea, warmest around August at about 16.8°C.

Historical Sep Avg:16.1°C(61°F)
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Celtic Sea

Trebah

A temperate beach on the Celtic Sea, warmest around August at about 16.6°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

Treen Cove

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.8°C(60.4°F)
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Celtic Sea

Trevaunance Cove

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

Trevone Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.9°C.

Historical Sep Avg:16.3°C(61.3°F)
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Celtic Sea

Treyarnon Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.8°C.

Historical Sep Avg:16.1°C(61°F)
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Celtic Sea

Vault Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.8°C.

Historical Sep Avg:16.1°C(61°F)
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Celtic Sea

Veor Cove Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.8°C(60.4°F)
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Celtic Sea

Watergate Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.5°C.

Historical Sep Avg:15.9°C(60.6°F)
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Celtic Sea

Widemouth Sands

A temperate beach on the Celtic Sea, warmest around August at about 17°C.

Historical Sep Avg:16.6°C(61.9°F)
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