Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 2h 56m at 6:12 pm (7.1 ft)
Next high tide : 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 - Apr 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:4611.56:0310.712:001.96:467:39Full Moon1Mon
2Tue6:1511.66:5310.912:072.012:370.76:447:40Full Moon2Tue
3Wed6:4611.67:4611.012:493.01:17-0.26:427:42Waning Gibbous3Wed
4Thu7:2011.58:4311.01:334.02:01-0.96:407:43Waning Gibbous4Thu
5Fri7:5711.29:4610.82:225.22:49-1.26:387:45Waning Gibbous5Fri
6Sat8:4010.711:0010.63:186.23:42-1.16:367:46Third Quarter6Sat
7Sun9:3310.04:297.04:42-0.76:347:47Third Quarter7Sun
8Mon12:2610.610:41 AM9.36:037.35:48-0.26:327:49Third Quarter8Mon
9Tue1:5010.812:078.87:456.86:590.26:307:50Third Quarter9Tue
10Wed2:5211.11:368.78:565.88:070.66:287:52Waning Crescent10Wed
11Thu3:3811.42:549.09:464.69:080.96:267:53Waning Crescent11Thu
12Fri4:1411.53:589.510:263.510:011.36:257:55Waning Crescent12Fri
13Sat4:4411.54:539.911:012.410:472.06:237:56New Moon13Sat
14Sun5:1011.55:4210.211:331.511:302.76:217:57New Moon14Sun
15Mon5:3511.36:2910.412:040.86:197:59New Moon15Mon
16Tue6:0111.07:1310.612:113.612:350.26:178:00New Moon16Tue
17Wed6:2810.77:5710.712:524.51:08-0.26:158:02Waxing Crescent17Wed
18Thu6:5810.38:4210.71:335.31:42-0.46:138:03Waxing Crescent18Thu
19Fri7:309.89:2910.62:186.12:19-0.36:118:04Waxing Crescent19Fri
20Sat8:069.310:2110.53:086.73:000.06:108:06Waxing Crescent20Sat
21Sun8:478.711:2110.34:097.13:460.46:088:07First Quarter21Sun
22Mon9:398.15:337.34:391.06:068:09First Quarter22Mon
23Tue12:2710.210:50 AM7.67:197.05:391.46:048:10First Quarter23Tue
24Wed1:2810.312:127.58:236.36:421.76:028:11First Quarter24Wed
25Thu2:1710.51:297.78:575.67:431.96:018:13Waxing Gibbous25Thu
26Fri2:5310.72:358.29:234.68:382.15:598:14Waxing Gibbous26Fri
27Sat3:2411.03:318.99:503.59:282.45:578:16Waxing Gibbous27Sat
28Sun3:5211.24:239.710:202.110:142.85:568:17Waxing Gibbous28Sun
29Mon4:2111.45:1310.410:530.711:003.45:548:18Full Moon29Mon
30Tue4:5111.56:0411.011:29-0.611:454.25:528:20Full Moon30Tue
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 9:01 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 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