Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 2h 01m at 6:33 pm (7.1 ft)
Next high tide (tomorrow) : 12:25 am (11.4 ft)
Sunset today : 9:07 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Sep 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:329.87:2311.11:003.812:481.06:287:50Waning Gibbous1Sun
2Mon7:199.67:4710.91:333.11:232.16:297:48Waning Gibbous2Mon
3Tue8:089.48:1210.72:062.51:593.46:317:46Waning Gibbous3Tue
4Wed9:009.28:4010.32:431.92:374.76:327:44Waning Gibbous4Wed
5Thu9:599.09:109.83:221.53:206.06:337:42Third Quarter5Thu
6Fri11:118.99:449.34:071.34:157.16:357:40Third Quarter6Fri
7Sat12:499.04:581.25:427.96:367:38Third Quarter7Sat
8Sun2:339.55:571.18:148.06:377:36Third Quarter8Sun
9Mon3:3310.07:000.99:257.76:397:34Waning Crescent9Mon
10Tue12:528.54:1110.48:010.49:547.26:407:32Waning Crescent10Tue
11Wed1:598.84:3910.88:56-0.110:176.66:417:29Waning Crescent11Wed
12Thu2:569.45:0411.19:44-0.610:435.76:437:27Waning Crescent12Thu
13Fri3:489.95:2811.310:29-0.811:144.76:447:25New Moon13Fri
14Sat4:3810.45:5311.611:11-0.611:493.46:457:23New Moon14Sat
15Sun5:3010.76:2011.811:530.16:477:21New Moon15Sun
16Mon6:2410.96:4911.912:282.012:351.26:487:19Waxing Crescent16Mon
17Tue7:2210.97:2111.91:100.81:192.66:497:17Waxing Crescent17Tue
18Wed8:2410.77:5611.61:55-0.22:064.26:517:15Waxing Crescent18Wed
19Thu9:3210.58:3511.12:43-0.92:595.76:527:13First Quarter19Thu
20Fri10:5210.29:2010.53:36-1.04:067.06:537:11First Quarter20Fri
21Sat12:3110.34:34-0.85:407.76:557:09First Quarter21Sat
22Sun2:0610.65:40-0.47:407.66:567:07First Quarter22Sun
23Mon3:1211.06:51-0.19:006.86:577:05Waxing Gibbous23Mon
24Tue1:098.83:5911.38:010.19:515.86:597:03Waxing Gibbous24Tue
25Wed2:289.04:3511.49:020.310:304.97:007:01Waxing Gibbous25Wed
26Thu3:319.35:0311.39:520.511:024.17:016:59Waxing Gibbous26Thu
27Fri4:239.65:2511.210:361.011:303.37:036:57Full Moon27Fri
28Sat5:109.85:4311.111:141.611:572.57:046:55Full Moon28Sat
29Sun5:5310.06:0110.911:502.57:066:53Full Moon29Sun
30Mon6:3510.16:2110.712:231.712:253.47:076:51Full Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447130)

Common Questions About Seattle, WA Tides

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What time does the tide turn (slack tide) in Seattle, WA today?

Slack tide in Seattle, WA is approximately 9:29 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Seattle, WA?

Seattle, WA is currently in a transitional phase. Tonight's moon is 28% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Seattle, WA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Seattle, WA?

Tide predictions for Seattle, WA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Seattle, WA?

Tide data for Seattle, WA is sourced from NOAA Station #9447130. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9447130.

What is the moon phase in Seattle, WA tonight?

Tonight the moon over Seattle, WA is Waning Crescent (28% illuminated). This places Seattle, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA