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 5h 11m at 6:28 am (1.2 ft)
Next high tide : 2:07 pm (8.4 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 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:1210.09:4510.02:345.52:540.76:467:39Waxing Crescent1Sun
2Mon8:469.510:429.83:206.33:380.86:447:41First Quarter2Mon
3Tue9:279.011:519.84:176.94:281.06:427:42First Quarter3Tue
4Wed10:208.55:357.35:251.26:407:44First Quarter4Wed
5Thu1:079.911:31 AM8.27:117.26:281.26:387:45First Quarter5Thu
6Fri2:1210.212:498.38:236.77:321.16:367:46Waxing Gibbous6Fri
7Sat2:5910.61:598.79:065.98:300.96:347:48Waxing Gibbous7Sat
8Sun3:3510.93:019.39:424.89:230.86:327:49Waxing Gibbous8Sun
9Mon4:0711.33:5610.010:173.610:111.06:307:51Waxing Gibbous9Mon
10Tue4:3811.64:5010.610:532.210:581.46:287:52Full Moon10Tue
11Wed5:1011.95:4411.111:320.811:442.16:267:53Full Moon11Wed
12Thu5:4412.06:3911.412:13-0.46:247:55Full Moon12Thu
13Fri6:2012.07:3511.612:313.112:57-1.36:227:56Waning Gibbous13Fri
14Sat7:0011.78:3511.51:204.11:43-1.86:207:58Waning Gibbous14Sat
15Sun7:4211.29:3811.32:145.22:32-1.86:187:59Waning Gibbous15Sun
16Mon8:3010.510:4911.13:156.03:25-1.46:178:01Third Quarter16Mon
17Tue9:269.74:296.64:23-0.66:158:02Third Quarter17Tue
18Wed12:0711.010:36 AM8.86:046.65:270.26:138:03Third Quarter18Wed
19Thu1:2411.012:028.37:396.06:361.06:118:05Third Quarter19Thu
20Fri2:2611.11:338.28:465.17:451.56:098:06Waning Crescent20Fri
21Sat3:1311.22:518.59:354.08:482.06:078:08Waning Crescent21Sat
22Sun3:4911.23:539.010:133.19:412.56:068:09Waning Crescent22Sun
23Mon4:1811.14:459.410:442.310:263.06:048:10Waning Crescent23Mon
24Tue4:4110.95:299.811:121.511:073.66:028:12New Moon24Tue
25Wed5:0310.86:1010.111:370.911:454.36:008:13New Moon25Wed
26Thu5:2610.66:4810.412:040.35:598:15New Moon26Thu
27Fri5:5210.47:2510.612:214.912:33-0.25:578:16New Moon27Fri
28Sat6:2010.28:0410.812:595.51:04-0.55:558:17Waxing Crescent28Sat
29Sun6:519.98:4510.91:396.01:39-0.65:548:19Waxing Crescent29Sun
30Mon7:249.59:2910.82:226.52:18-0.55:528:20Waxing Crescent30Mon
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 10:17 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