Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Seattle, WA.
Next low tide (tomorrow) : 7:21 am (0.6 ft)
Next high tide : in 4h 29m at 11:50 pm (10.4 ft)
Sunset today : 8:56 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Aug 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:559.09:5411.83:293.83:051.25:478:43Third Quarter1Thu
2Fri10:078.410:3411.44:253.13:553.05:498:42Third Quarter2Fri
3Sat11:338.111:1610.95:222.44:534.65:508:40Third Quarter3Sat
4Sun1:198.26:201.76:066.05:518:39Third Quarter4Sun
5Mon12:0210.42:588.97:161.27:406.95:528:37Waning Crescent5Mon
6Tue12:529.94:079.78:080.69:097.25:548:36Waning Crescent6Tue
7Wed1:449.64:5510.48:550.210:127.15:558:34Waning Crescent7Wed
8Thu2:339.55:3210.79:37-0.210:566.95:568:33Waning Crescent8Thu
9Fri3:199.56:0210.910:15-0.611:296.75:588:31Waning Crescent9Fri
10Sat4:019.66:2611.010:52-0.811:566.45:598:30New Moon10Sat
11Sun4:409.76:4911.111:27-0.96:008:28New Moon11Sun
12Mon5:199.77:1211.312:226.112:03-0.86:028:26New Moon12Mon
13Tue5:599.77:3711.412:515.612:38-0.66:038:25New Moon13Tue
14Wed6:429.68:0411.51:245.01:14-0.16:048:23Waxing Crescent14Wed
15Thu7:289.58:3411.52:014.31:510.76:068:21Waxing Crescent15Thu
16Fri8:209.29:0611.42:433.52:311.86:078:19Waxing Crescent16Fri
17Sat9:188.99:4011.33:282.73:133.16:088:18First Quarter17Sat
18Sun10:278.710:1911.04:181.84:034.66:108:16First Quarter18Sun
19Mon11:518.711:0410.85:131.05:055.96:118:14First Quarter19Mon
20Tue1:319.06:130.36:257.06:128:12First Quarter20Tue
21Wed3:029.87:15-0.57:557.36:148:10Waxing Gibbous21Wed
22Thu1:0210.54:0510.68:16-1.29:117.16:158:08Waxing Gibbous22Thu
23Fri2:0610.64:5211.29:13-1.810:116.66:168:07Waxing Gibbous23Fri
24Sat3:0710.85:3111.610:06-2.111:005.86:188:05Full Moon24Sat
25Sun4:0510.96:0711.810:55-2.111:455.06:198:03Full Moon25Sun
26Mon5:0110.96:4111.911:42-1.76:208:01Full Moon26Mon
27Tue5:5610.87:1511.912:294.112:26-0.96:227:59Waning Gibbous27Tue
28Wed6:5110.57:4811.71:133.31:100.26:237:57Waning Gibbous28Wed
29Thu7:4710.18:2211.51:572.61:551.56:247:55Waning Gibbous29Thu
30Fri8:469.68:5711.02:432.12:403.06:267:53Waning Gibbous30Fri
31Sat9:519.29:3510.53:301.73:304.56:277:51Third Quarter31Sat
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 3:35 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 transitional phase. Tonight's moon is 63% 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 shifting between spring and neap.

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 First Quarter (63% illuminated). This places Seattle, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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