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Duwamish Waterway, Eighth Ave. South Wave Conditions

Today’s wave height and sea conditions for Duwamish Waterway, Eighth Ave. South, Washington, from the National Weather Service.

No open-water sea forecast for Duwamish Waterway, Eighth Ave. South

This spot is sheltered or inland, so there’s no combined-seas value. Here’s the closest open-water reading:

Nearest open water
Lockheed Shipyard, Harbor Island
4 mi away · Moderate
2ft

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Wave height, tides, and conditions for your spots, plus the occasional PATHR update. No spam.

Frequently asked

How big are the waves at Duwamish Waterway, Eighth Ave. South right now?+

Duwamish Waterway, Eighth Ave. South is sheltered and has no open-water seas reading. The nearest buoy with data, Lockheed Shipyard, Harbor Island (4 mi away), is running about 2 ft.

Is it a good day to go out at Duwamish Waterway, Eighth Ave. South?+

Wave height is one of the biggest factors in whether it's a good day on the water. A live reading isn't available for Duwamish Waterway, Eighth Ave. South right now — check the nearest buoy and the marine forecast, and open Pathr for conditions along your route.

Where do these wave conditions come from?+

Wave and sea-state data come from NOAA and NDBC marine forecasts and buoys for this area. In the Pathr app you see live seas, wind, and swell along your actual route, not just at a single fixed buoy.

Bridge clearances near Duwamish Waterway, Eighth Ave. South

Vertical clearance and drawbridge opening schedules for the bridges closest to Duwamish Waterway, Eighth Ave. South. Check them against your air draft before you head out.

All US bridge clearances →
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