Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Seattle, WA.
Next low tide (tomorrow) : in 4h 28m at 1:05 am (6.0 ft)
Next high tide (tomorrow) : 6:00 am (9.6 ft)
Sunset today : 8:46 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Jan 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:3812.44:5210.112:156.87:574:29Full Moon1Tue
2Wed7:0412.35:389.712:536.47:574:30Waning Gibbous2Wed
3Thu7:3112.36:279.212:18-0.31:335.87:574:31Waning Gibbous3Thu
4Fri7:5812.27:198.712:550.62:155.27:564:32Waning Gibbous4Fri
5Sat8:2812.18:168.21:311.72:594.67:564:33Waning Gibbous5Sat
6Sun9:0011.99:247.82:093.03:463.97:564:34Third Quarter6Sun
7Mon9:3511.610:477.72:494.44:353.17:564:35Third Quarter7Mon
8Tue10:1211.33:365.85:262.37:554:36Third Quarter8Tue
9Wed12:358.010:54 AM11.04:387.16:171.57:554:38Third Quarter9Wed
10Thu2:198.911:40 AM10.86:038.07:060.57:544:39Waning Crescent10Thu
11Fri3:209.812:2910.77:308.57:52-0.47:544:40Waning Crescent11Fri
12Sat4:0110.71:1810.88:388.58:37-1.37:534:41Waning Crescent12Sat
13Sun4:3311.32:0811.09:298.29:21-2.07:534:43New Moon13Sun
14Mon5:0311.92:5811.210:127.710:05-2.57:524:44New Moon14Mon
15Tue5:3312.33:4911.310:557.110:48-2.57:514:45New Moon15Tue
16Wed6:0412.64:4211.211:396.211:32-2.17:514:47New Moon16Wed
17Thu6:3712.95:3910.912:255.27:504:48Waxing Crescent17Thu
18Fri7:1113.16:3910.412:16-1.31:144.27:494:50Waxing Crescent18Fri
19Sat7:4613.17:459.71:000.12:073.17:484:51Waxing Crescent19Sat
20Sun8:2413.08:589.11:461.83:022.27:474:52First Quarter20Sun
21Mon9:0512.710:288.82:363.64:011.47:464:54First Quarter21Mon
22Tue9:4912.23:335.55:030.77:464:55First Quarter22Tue
23Wed12:219.010:41 AM11.64:477.06:060.27:454:57First Quarter23Wed
24Thu2:069.811:39 AM11.16:267.97:06-0.37:444:58Waxing Gibbous24Thu
25Fri3:1610.712:4210.78:058.08:01-0.67:425:00Waxing Gibbous25Fri
26Sat4:0511.41:4210.59:157.68:49-0.97:415:01Waxing Gibbous26Sat
27Sun4:4411.82:3510.310:057.29:32-0.97:405:03Full Moon27Sun
28Mon5:1611.93:2310.310:446.710:11-0.87:395:05Full Moon28Mon
29Tue5:4111.94:0710.211:176.210:47-0.57:385:06Full Moon29Tue
30Wed6:0211.94:5010.011:485.611:220.17:375:08Full Moon30Wed
31Thu6:2211.95:339.812:185.07:355:09Waning 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 3:32 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 99% 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 (99% 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