Seattle tide chart for today and solunar table

What are the tides like in Seattle?

The Seattle gauge is on the downtown waterfront in Elliott Bay, Puget Sound. Tides here are large and mixed, with lower lows that can drop well below zero in late spring and summer.

Based on the station's constants, Seattle has a mixed, mainly semidiurnal (with a daily inequality) tide: the form number (K1+O1)/(M2+S2) is 0.97. The reference spring range — around new and full moon — is about 8.7 ft, and mean sea level sits 6.6 ft above MLLW. That is why the two high tides (or the two lows) on the same day are often noticeably different in height.

What is the best time to fish in Seattle?

Solunar theory points to the major periods (about 2 hours centered on the moon passing overhead or underfoot) and the minor periods (1 hour around moonrise and moonset). What surf, pier and inshore anglers repeat most often is simpler: moving water (the middle of the incoming or outgoing tide), low light (dawn and dusk) and a moon near new or full, when the tidal range is biggest.

The fishing score from 0 to 4 combines those three signals. It is a traditional rule of thumb, not a catch forecast: it knows nothing about wind, rain, water clarity or the species you are after. In November 2026, the top-scoring days at Seattle are November 24, November 25, and November 27.

Where does this data come from?

The prediction adds up 34 harmonic constituents for NOAA station 9447130 — Seattle, published by NOAA CO-OPS (Vector Averaged from 5 one year analyses 2000-2024. SSA and SA from 20 year analyses (2000-2024).). Phases are referenced to Greenwich (GMT) and converted to local time for each date, including daylight saving time. Heights are relative to MLLW from the station's 1983-2001 tidal datum epoch. Node factors follow Schureman; sun and moon positions use Meeus's formulas.

Wind, pressure and storms change the real water level, sometimes by a foot or more. Times shift much less than heights.