Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Seattle, WA.
Next low tide : 11:16 am (-1.7 ft)
Next high tide : in 52m at 4:02 am (9.7 ft)
Sunset today : 9:11 pm
Sunrise tomorrow : 5:14 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:3910.57:499.92:30-0.82:557.47:096:48Waning Gibbous1Sun
2Mon10:4710.38:319.53:19-0.74:008.07:106:46Third Quarter2Mon
3Tue12:1010.24:18-0.55:328.27:126:44Third Quarter3Tue
4Wed1:3010.45:24-0.27:167.67:136:42Third Quarter4Wed
5Thu2:2610.86:340.18:236.57:156:40Waning Crescent5Thu
6Fri12:568.83:0411.17:410.39:095.17:166:38Waning Crescent6Fri
7Sat2:199.23:3611.58:420.79:493.47:176:36Waning Crescent7Sat
8Sun3:299.84:0511.89:361.310:281.87:196:34Waning Crescent8Sun
9Mon4:3110.54:3412.010:262.211:060.27:206:32New Moon9Mon
10Tue5:2911.05:0412.011:133.211:44-1.07:226:30New Moon10Tue
11Wed6:2611.45:3511.812:014.47:236:28New Moon11Wed
12Thu7:2111.66:0811.412:23-1.712:495.57:246:26Waxing Crescent12Thu
13Fri8:1611.66:4510.81:03-2.01:416.57:266:24Waxing Crescent13Fri
14Sat9:1311.47:2410.11:45-1.82:407.27:276:22Waxing Crescent14Sat
15Sun10:1511.28:119.32:30-1.23:537.67:296:20First Quarter15Sun
16Mon11:2310.99:098.53:19-0.45:347.67:306:18First Quarter16Mon
17Tue12:3510.74:150.57:137.07:326:16First Quarter17Tue
18Wed1:3610.75:181.48:146.27:336:15First Quarter18Wed
19Thu2:2110.76:252.08:565.37:356:13First Quarter19Thu
20Fri1:267.72:5310.77:302.59:274.37:366:11Waxing Gibbous20Fri
21Sat2:378.23:1710.78:263.09:523.47:386:09Waxing Gibbous21Sat
22Sun3:348.73:3610.89:143.510:142.37:396:07Waxing Gibbous22Sun
23Mon4:239.33:5610.89:564.110:361.37:416:06Waxing Gibbous23Mon
24Tue5:069.94:1610.910:344.811:010.27:426:04Full Moon24Tue
25Wed5:4710.54:3810.911:125.611:29-0.77:436:02Full Moon25Wed
26Thu6:2711.05:0310.811:516.37:456:00Full Moon26Thu
27Fri7:0911.45:3010.712:02-1.412:316.97:465:59Waning Gibbous27Fri
28Sat7:5411.66:0010.512:38-1.91:157.57:485:57Waning Gibbous28Sat
29Sun8:4311.66:3510.21:19-2.02:047.97:495:56Waning Gibbous29Sun
30Mon9:3811.57:199.82:05-1.93:028.17:515:54Waning Gibbous30Mon
31Tue10:3811.38:189.22:56-1.44:158.17:535:52Third Quarter31Tue
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 7:39 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