30th St. Road End (Seattle)

Coast, Seattle, King County. We calculate high and low water here from an ocean tide model — accurate to about 5 cm on open coasts, considerably less in tidal flats and river mouths. This spot is listed by an authority but is not designated as a bathing water — there are no water samples and no classification.

Common questions about this spot

How warm is the water?

Water temperature 13.9 °C — NOAA Geo-Polar Blended (5 km), measured 19/09/2026 05:00.

When is high and low tide?

High tide at 12:59, Low tide at 16:30 (Local time at the spot).

Swimming spots in Seattle · King County · Swimming spots in the United States · Pacific Ocean · On the map