Typical September highs at Caspar Headlands State Beach reach about 65°F. Caspar Headlands State Beach is located in Mendocino, California.
Mendocino, California · live parking & conditions · updated June 19, 2026
In a typical year September is the warmest month here, with highs near 65°F. Tap Caspar Headlands State Beach on the map for live surf, wind, water temperature, UV and tide times.
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