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Punalu'u Black Sand Beach

Typical September highs at Punalu'u Black Sand Beach reach about 84°F, with reliable beach weather most of the year. Punalu'u Black Sand Beach is located in Kau, Hawaii.

Kau, Hawaii · live parking & conditions · updated June 19, 2026

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Punalu'u Black Sand Beach in Kau, Hawaii
Photo: Aren Elliott · CC BY-SA 4.0

Conditions & tides

In a typical year September is the warmest month here, with highs near 84°F, and it's reliably beach weather most of the year. Tap Punalu'u Black Sand Beach on the map for live surf, wind, water temperature, UV and tide times.

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