Before diving at Duncan Rock, always check the site-specific wind/wave forecast, tide/currents, and recent pnwdiving reports ! Reminder: Winds (even offshore winds) can impact slack time.

Briefings may be out of date or have inaccuracies. Dive within your training and experience. The first time diving a site, join someone familiar with the site and/or start on a mild day.

See our currents, tides, wind, and waves guide for help reading charts and planning current-sensitive dives.

About tide & current data sources.

The nearest NOAA or XTide current and tide stations within 25 miles are selected by default when available. Click a pin on the map below to choose another station for current, tide, camera, or buoy data (you may need to zoom in or out).

See an issue? Would you suggest a different default station or depth? Suggest briefing updates.