Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Seattle, WA.
Next low tide : 1:18 pm (-0.2 ft)
Next high tide : in 1h 00m at 6:46 am (9.4 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Oct 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:0310.95:4711.311:563.37:106:46Full Moon1Fri
2Sat6:4911.26:2111.312:20-0.112:384.07:116:44Waning Gibbous2Sat
3Sun7:3911.36:5811.11:00-0.81:234.87:136:42Waning Gibbous3Sun
4Mon8:3211.27:3910.81:45-1.22:125.57:146:40Waning Gibbous4Mon
5Tue9:3111.08:2810.32:33-1.23:096.17:156:38Waning Gibbous5Tue
6Wed10:3710.89:279.73:27-0.84:186.57:176:36Third Quarter6Wed
7Thu11:5010.710:429.14:27-0.35:436.57:186:34Third Quarter7Thu
8Fri1:0310.85:330.47:125.87:206:32Third Quarter8Fri
9Sat12:118.82:0411.06:431.08:214.77:216:31Waning Crescent9Sat
10Sun1:398.92:5111.37:511.59:133.57:226:29Waning Crescent10Sun
11Mon2:549.43:3011.48:531.99:562.37:246:27Waning Crescent11Mon
12Tue3:5810.04:0411.59:472.510:331.27:256:25New Moon12Tue
13Wed4:5310.54:3511.510:363.111:080.47:276:23New Moon13Wed
14Thu5:4210.85:0511.311:213.811:42-0.27:286:21New Moon14Thu
15Fri6:2711.15:3611.012:054.57:306:19New Moon15Fri
16Sat7:1111.26:0910.712:16-0.612:485.27:316:17Waxing Crescent16Sat
17Sun7:5311.26:4410.212:51-0.71:335.87:336:15Waxing Crescent17Sun
18Mon8:3611.17:239.71:28-0.52:206.37:346:14Waxing Crescent18Mon
19Tue9:2210.98:069.12:08-0.23:136.67:356:12Waxing Crescent19Tue
20Wed10:1110.78:568.62:510.34:166.87:376:10First Quarter20Wed
21Thu11:0610.59:588.03:381.05:346.67:386:08First Quarter21Thu
22Fri12:0310.44:311.76:556.27:406:06First Quarter22Fri
23Sat12:5810.45:302.37:525.47:416:05First Quarter23Sat
24Sun12:347.71:4310.66:332.88:314.57:436:03Waxing Gibbous24Sun
25Mon1:488.02:2110.77:343.29:023.57:446:01Waxing Gibbous25Mon
26Tue2:508.72:5311.08:293.69:322.47:466:00Waxing Gibbous26Tue
27Wed3:429.43:2311.29:203.910:031.17:475:58Waxing Gibbous27Wed
28Thu4:3010.23:5411.410:064.310:37-0.17:495:56Full Moon28Thu
29Fri5:1510.94:2611.510:514.811:13-1.17:505:55Full Moon29Fri
30Sat6:0111.55:0111.611:365.311:53-2.07:525:53Full Moon30Sat
31Sun6:4811.95:4011.512:225.77:535:51Full Moon31Sun
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 10:02 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 90% 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 Waning Gibbous (90% 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