Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Seattle, WA.
Next low tide (tomorrow) : in 5h 19m at 12:36 am (6.6 ft)
Next high tide (tomorrow) : 5:18 am (9.7 ft)
Sunset today : 8:48 pm
Sunrise tomorrow : 5:43 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Dec 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:259.51:2910.98:076.98:450.27:374:19Waxing Gibbous1Tue
2Wed4:1710.41:5710.79:067.59:12-0.57:384:19Waxing Gibbous2Wed
3Thu5:0011.02:2610.59:578.09:41-1.17:394:19Full Moon3Thu
4Fri5:3511.52:5610.310:418.310:13-1.57:404:18Full Moon4Fri
5Sat6:0711.83:2810.211:208.410:47-1.77:414:18Full Moon5Sat
6Sun6:3812.04:0310.011:578.411:23-1.87:424:18Full Moon6Sun
7Mon7:1012.14:409.812:368.37:444:18Waning Gibbous7Mon
8Tue7:4512.25:239.612:03-1.71:188.17:454:17Waning Gibbous8Tue
9Wed8:2112.26:139.212:44-1.52:067.77:464:17Waning Gibbous9Wed
10Thu8:5812.27:148.71:27-0.92:597.17:464:17Waning Gibbous10Thu
11Fri9:3512.28:298.12:120.03:566.17:474:17Third Quarter11Fri
12Sat10:1212.39:587.72:591.34:534.77:484:17Third Quarter12Sat
13Sun10:4912.311:387.83:522.95:463.17:494:17Third Quarter13Sun
14Mon11:2712.34:524.66:361.37:504:18Waning Crescent14Mon
15Tue1:208.712:0612.36:026.27:24-0.47:514:18Waning Crescent15Tue
16Wed2:479.912:4812.37:177.48:10-1.97:514:18Waning Crescent16Wed
17Thu3:5311.11:3212.28:308.18:56-3.07:524:18Waning Crescent17Thu
18Fri4:4812.02:1812.09:368.59:42-3.67:534:19New Moon18Fri
19Sat5:3512.63:0711.810:358.410:27-3.77:534:19New Moon19Sat
20Sun6:2012.93:5811.411:308.211:13-3.47:544:20New Moon20Sun
21Mon7:0113.04:5110.912:237.87:544:20Waxing Crescent21Mon
22Tue7:4112.95:4710.21:187.37:554:21Waxing Crescent22Tue
23Wed8:1912.76:469.412:43-1.72:146.67:554:21Waxing Crescent23Wed
24Thu8:5512.57:508.51:28-0.53:135.87:564:22Waxing Crescent24Thu
25Fri9:2912.29:047.82:121.14:124.97:564:22First Quarter25Fri
26Sat10:0311.910:367.42:582.85:083.97:564:23First Quarter26Sat
27Sun10:3711.53:474.65:592.87:564:24First Quarter27Sun
28Mon12:317.711:12 AM11.14:486.36:441.87:564:25First Quarter28Mon
29Tue2:218.711:50 AM10.86:097.67:250.97:574:26Waxing Gibbous29Tue
30Wed3:349.812:2910.57:478.48:020.27:574:26Waxing Gibbous30Wed
31Thu4:2210.71:1010.39:078.78:39-0.67:574:27Waxing Gibbous31Thu
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 2:57 am — 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 spring phase. Tonight's moon is 100% 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 near their weekly maximum.

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 Full Moon (100% illuminated). This places Seattle, WA in a spring tide cycle, so tidal ranges are near their weekly maximum 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