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Island Beach

Typical September highs at Island Beach reach about 68°F. Island Beach is located in Castroville, California.

Castroville, California · live parking & conditions · updated June 19, 2026

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Island Beach in Castroville, California
Photo: Derek Keats from Johannesburg, South Afr · CC BY 2.0

Conditions & tides

In a typical year September is the warmest month here, with highs near 68°F. Tap Island Beach on the map for live surf, wind, water temperature, UV and tide times.

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