Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Seattle, WA.
Next low tide : 1:11 pm (-3.6 ft)
Next high tide : in 3h 58m at 5:56 am (10.7 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Feb 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:3411.52:4010.49:576.79:31-0.57:355:10Waxing Gibbous1Sun
2Mon5:0711.73:2410.310:376.410:08-0.57:345:11Full Moon2Mon
3Tue5:3311.84:0610.211:106.010:44-0.37:325:13Full Moon3Tue
4Wed5:5511.84:4610.111:405.611:180.17:315:14Full Moon4Wed
5Thu6:1711.85:279.912:105.17:305:16Full Moon5Thu
6Fri6:4011.86:099.712:424.67:285:18Waning Gibbous6Fri
7Sat7:0711.96:539.412:261.31:174.07:275:19Waning Gibbous7Sat
8Sun7:3711.87:409.11:012.11:553.57:255:21Waning Gibbous8Sun
9Mon8:0911.68:348.81:373.22:383.07:245:22Waning Gibbous9Mon
10Tue8:4311.39:378.52:154.33:242.67:225:24Third Quarter10Tue
11Wed9:2210.910:558.52:595.44:172.17:215:25Third Quarter11Wed
12Thu10:0610.63:566.55:141.57:195:27Third Quarter12Thu
13Fri12:318.810:59 AM10.45:147.36:130.97:175:29Third Quarter13Fri
14Sat1:579.511:59 AM10.46:437.67:100.17:165:30Waning Crescent14Sat
15Sun2:5310.31:0010.67:577.48:04-0.77:145:32Waning Crescent15Sun
16Mon3:3411.01:5810.98:536.88:54-1.37:125:33Waning Crescent16Mon
17Tue4:0911.62:5411.29:416.09:42-1.67:115:35New Moon17Tue
18Wed4:4412.13:4911.510:265.010:28-1.57:095:36New Moon18Wed
19Thu5:1812.54:4411.511:114.011:14-0.97:075:38New Moon19Thu
20Fri5:5412.75:4011.311:572.911:590.07:065:40Waxing Crescent20Fri
21Sat6:3112.86:3911.012:452.07:045:41Waxing Crescent21Sat
22Sun7:1012.77:4010.512:461.21:341.47:025:43Waxing Crescent22Sun
23Mon7:5112.48:479.91:342.72:271.07:005:44Waxing Crescent23Mon
24Tue8:3511.810:069.52:274.23:230.86:585:46First Quarter24Tue
25Wed9:2511.111:449.43:295.64:240.96:575:47First Quarter25Wed
26Thu10:2310.44:516.65:290.96:555:49First Quarter26Thu
27Fri1:229.811:32 AM9.86:347.06:350.96:535:50Waxing Gibbous27Fri
28Sat2:3210.412:439.68:016.77:360.86:515:52Waxing Gibbous28Sat
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 9:33 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 10% 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 Waxing Crescent (10% 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