Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 2h 49m at 11:52 am (-1.8 ft)
Next high tide : 7:48 pm (11.5 ft)
Sunset today : 9:10 pm
Sunrise tomorrow : 5:15 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Mar 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:2310.41:089.18:597.18:010.86:485:54Waning Crescent1Wed
2Thu3:5610.82:029.39:366.78:460.56:465:56Waning Crescent2Thu
3Fri4:2211.02:489.610:036.39:250.26:445:57Waning Crescent3Fri
4Sat4:4411.23:309.910:275.710:030.06:425:59New Moon4Sat
5Sun5:0511.44:1110.210:525.110:390.16:406:00New Moon5Sun
6Mon5:2811.64:5310.411:214.311:160.46:386:02New Moon6Mon
7Tue5:5311.75:3810.411:553.411:531.16:366:03New Moon7Tue
8Wed6:2011.86:2610.412:322.56:346:05Waxing Crescent8Wed
9Thu6:5011.87:1810.312:322.01:131.66:326:06Waxing Crescent9Thu
10Fri7:2311.68:1710.11:133.21:580.96:306:08Waxing Crescent10Fri
11Sat7:5911.49:259.81:594.52:490.46:286:09First Quarter11Sat
12Sun8:4110.910:499.72:535.83:450.16:266:11First Quarter12Sun
13Mon9:3310.44:036.94:490.06:246:12First Quarter13Mon
14Tue12:299.910:40 AM10.05:377.55:56-0.26:226:13First Quarter14Tue
15Wed1:5410.511:59 AM9.77:167.37:03-0.46:206:15Waxing Gibbous15Wed
16Thu2:5111.11:159.88:276.58:04-0.56:186:16Waxing Gibbous16Thu
17Fri3:3311.52:2210.19:185.58:58-0.56:166:18Waxing Gibbous17Fri
18Sat4:0811.83:2110.310:004.59:47-0.26:146:19Full Moon18Sat
19Sun4:3911.94:1510.510:383.510:310.36:126:21Full Moon19Sun
20Mon5:0811.95:0610.611:152.611:141.16:106:22Full Moon20Mon
21Tue5:3711.85:5510.511:521.911:552.26:086:24Full Moon21Tue
22Wed6:0611.66:4510.412:281.36:066:25Waning Gibbous22Wed
23Thu6:3711.27:3510.212:373.31:060.96:046:26Waning Gibbous23Thu
24Fri7:0910.88:2910.01:204.51:460.86:026:28Waning Gibbous24Fri
25Sat7:4410.29:299.82:075.62:280.86:006:29Waning Gibbous25Sat
26Sun8:249.510:439.63:046.53:161.15:586:31Third Quarter26Sun
27Mon9:138.94:227.24:101.45:566:32Third Quarter27Mon
28Tue12:119.710:16 AM8.46:167.35:111.65:546:34Third Quarter28Tue
29Wed1:279.911:31 AM8.17:436.96:151.75:526:35Third Quarter29Wed
30Thu2:1710.212:438.38:306.37:151.55:506:36Waning Crescent30Thu
31Fri2:5210.51:448.69:015.78:061.45:486:38Waning Crescent31Fri
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 3:50 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 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