Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Seattle, WA.
Next low tide (tomorrow) : 3:41 am (2.2 ft)
Next high tide : in 1h 41m at 9:06 pm (11.7 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Apr 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:3311.22:2410.18:423.78:411.05:486:38Waxing Gibbous1Tue
2Wed3:0911.63:2210.79:252.39:311.45:466:39Full Moon2Wed
3Thu3:4411.94:1911.210:070.910:192.05:446:41Full Moon3Thu
4Fri4:2112.15:1411.510:50-0.311:072.85:426:42Full Moon4Fri
5Sat4:5912.26:1011.711:34-1.211:563.75:406:44Waning Gibbous5Sat
6Sun5:3912.07:0711.612:19-1.65:386:45Waning Gibbous6Sun
7Mon6:2311.58:0611.312:484.61:07-1.55:366:47Waning Gibbous7Mon
8Tue7:1010.99:0911.01:445.41:57-1.15:346:48Waning Gibbous8Tue
9Wed8:0210.010:1910.72:506.12:51-0.45:326:49Third Quarter9Wed
10Thu9:059.211:3510.64:106.33:500.55:306:51Third Quarter10Thu
11Fri10:218.55:456.14:561.35:286:52Third Quarter11Fri
12Sat12:4310.611:48 AM8.27:045.46:052.05:266:54Third Quarter12Sat
13Sun1:3710.61:108.38:004.57:102.55:246:55Waning Crescent13Sun
14Mon2:1710.72:168.78:423.68:072.85:226:56Waning Crescent14Mon
15Tue2:4810.63:109.29:162.88:543.25:206:58Waning Crescent15Tue
16Wed3:1310.63:559.69:432.19:353.75:186:59Waning Crescent16Wed
17Thu3:3510.64:3510.010:081.410:124.15:167:01New Moon17Thu
18Fri3:5910.65:1210.310:340.710:484.65:147:02New Moon18Fri
19Sat4:2410.55:4710.611:020.211:235.15:137:03New Moon19Sat
20Sun4:5310.46:2410.811:33-0.35:117:05New Moon20Sun
21Mon5:2310.27:0310.912:005.512:07-0.65:097:06Waxing Crescent21Mon
22Tue5:5610.07:4510.912:405.912:45-0.75:077:08Waxing Crescent22Tue
23Wed6:329.78:3110.91:236.31:27-0.65:057:09Waxing Crescent23Wed
24Thu7:149.39:2310.82:136.52:13-0.35:047:10Waxing Crescent24Thu
25Fri8:058.910:1910.73:126.63:040.15:027:12First Quarter25Fri
26Sat9:118.411:1610.74:216.44:020.65:007:13First Quarter26Sat
27Sun11:338.26:345.86:051.25:588:15First Quarter27Sun
28Mon1:1010.912:588.47:374.77:101.85:578:16Waxing Gibbous28Mon
29Tue1:5711.22:178.98:303.38:142.45:558:17Waxing Gibbous29Tue
30Wed2:4011.53:279.79:171.79:133.05:538:19Waxing Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447130)

Common Questions About Seattle, WA Tides

Show All
What time does the tide turn (slack tide) in Seattle, WA today?

Slack tide in Seattle, WA is approximately 12:23 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 74% 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 Waning Gibbous (74% 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