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 3 of 4

Celtic Sea

Pepper Cove

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

Perbean 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

Perhaver 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

Plaidy 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

Polkirt 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

Polpero 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

Polstreath

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

Port Gaverne 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

Porth Chapel

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

Porth Nanven

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

Porthbean

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

Porthbeer Cove

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

Porthbeor 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

Porthcothan 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

Porthcurnick

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

Porthcurno

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

Porthgwarra

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

Porthgwidden 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

Porthleven Sands

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

Porthluney 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

Porthmeor 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

Portreath Beach

A temperate beach on the Celtic Sea, warmest around August at about 16.4°C.

Historical Sep Avg:15.7°C(60.3°F)
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Celtic Sea

Praa Sands

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

Readymoney Cove 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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