United States Coastal Region

Hawaii Sea Water Temperature

Compare sea surface temperatures across 121 top coastal destinations in Hawaii. Check below for live marine observations, wave conditions, and monthly averages.

Beaches & Swimming Spots in Hawaii— page 2 of 6

Coastal Waters

Hapuna Beach

A tropical beach on the Coastal Waters, warmest around September at about 27.1°C.

Historical Sep Avg:27.1°C(80.8°F)
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Coastal Waters

Honokohau Harbor Beach

A tropical beach on the Coastal Waters, warmest around September at about 27.3°C.

Historical Sep Avg:27.3°C(81.1°F)
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North Pacific Ocean

Honopū Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27.1°C.

Historical Sep Avg:27.1°C(80.8°F)
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Coastal Waters

ʻOloʻupena

A tropical beach on the Coastal Waters, warmest around September at about 26.8°C.

Historical Sep Avg:26.8°C(80.2°F)
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Coastal Waters

Ka'anapali Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.9°C.

Historical Sep Avg:26.9°C(80.4°F)
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Coastal Waters

Ka'opala Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.9°C.

Historical Sep Avg:26.9°C(80.4°F)
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Auau Channel / Pacific Ocean

Kaanapali Beach (Maui)

Golden 3-mile beach famous for cliff diving at Black Rock and sea turtle sanctuaries.

Historical Sep Avg:27.9°C(82.2°F)
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Coastal Waters

Kaelehuluhulu Beach

A tropical beach on the Coastal Waters, warmest around September at about 27.1°C.

Historical Sep Avg:27.1°C(80.8°F)
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Coastal Waters

Kahekili Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.9°C.

Historical Sep Avg:26.9°C(80.4°F)
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North Pacific Ocean

Kahili Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27°C.

Historical Sep Avg:27°C(80.6°F)
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North Pacific Ocean

Kaʻakuʻu Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27.3°C.

Historical Sep Avg:27.3°C(81.1°F)
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Coastal Waters

Kaihalulu Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.7°C.

Historical Sep Avg:26.7°C(80.1°F)
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Coastal Waters

Kailua Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.8°C.

Historical Sep Avg:26.8°C(80.2°F)
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Coastal Waters

Kaimana beach

A tropical beach on the Coastal Waters, warmest around September at about 26.9°C.

Historical Sep Avg:26.9°C(80.4°F)
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Coastal Waters

Kaipapa‘U Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.7°C.

Historical Sep Avg:26.7°C(80.1°F)
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North Pacific Ocean

Kalalau Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27.1°C.

Historical Sep Avg:27.1°C(80.8°F)
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Coastal Waters

Kalani Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.9°C.

Historical Sep Avg:26.9°C(80.4°F)
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North Pacific Ocean

Kalapaki Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27°C.

Historical Sep Avg:27°C(80.6°F)
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North Pacific Ocean

Kalihiwai Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27°C.

Historical Sep Avg:27°C(80.6°F)
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Coastal Waters

Kaluhikaa Beach

A tropical beach on the Coastal Waters, warmest around September at about 27°C.

Historical Sep Avg:27°C(80.6°F)
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North Pacific Ocean

Kamalino Beach

A tropical beach on the North Pacific Ocean, warmest around September at about 27.3°C.

Historical Sep Avg:27.3°C(81.1°F)
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Coastal Waters

Kamaole III Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.8°C.

Historical Sep Avg:26.8°C(80.2°F)
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Coastal Waters

Kamilo

A tropical beach on the Coastal Waters, warmest around September at about 26.8°C.

Historical Sep Avg:26.8°C(80.2°F)
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Coastal Waters

Kanaha Beach

A tropical beach on the Coastal Waters, warmest around September at about 26.7°C.

Historical Sep Avg:26.7°C(80.1°F)
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