Visibility history for Lake Sammamish State Park

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Visibility history

Two pnwdiving reports in 2022 and 2024 recorded 15–18 ft of visibility.

Seasonal visibility chart for Lake Sammamish State Park. Typical visibility by month includes Sep 16 ft.

Typical visibility by month at Lake Sammamish State Park
Month	Typical visibility (ft)
Sep	16

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6/13/2025