Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 4h 01m at 1:54 pm (0.8 ft)
Next high tide : 8:39 pm (11.7 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Feb 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:5910.71:5710.69:047.59:00-1.07:345:10Waxing Gibbous1Thu
2Fri4:3111.42:4410.89:487.19:43-1.57:335:12Full Moon2Fri
3Sat5:0211.83:3211.110:286.610:26-1.97:325:14Full Moon3Sat
4Sun5:3412.34:2111.211:095.911:08-1.87:305:15Full Moon4Sun
5Mon6:0712.65:1311.111:535.111:52-1.37:295:17Full Moon5Mon
6Tue6:4212.86:0810.812:394.27:275:18Waning Gibbous6Tue
7Wed7:1912.97:0710.412:36-0.41:283.37:265:20Waning Gibbous7Wed
8Thu7:5812.88:119.81:220.92:202.57:245:21Waning Gibbous8Thu
9Fri8:3912.59:269.32:112.53:171.87:235:23Third Quarter9Fri
10Sat9:2512.110:599.03:054.24:181.37:215:25Third Quarter10Sat
11Sun10:1611.64:125.75:220.87:205:26Third Quarter11Sun
12Mon12:499.311:15 AM11.05:376.86:270.47:185:28Waning Crescent12Mon
13Tue2:2010.112:1910.67:157.17:270.07:165:29Waning Crescent13Tue
14Wed3:2110.91:2210.48:346.98:21-0.37:155:31Waning Crescent14Wed
15Thu4:0711.42:1910.39:326.59:08-0.57:135:33Waning Crescent15Thu
16Fri4:4411.73:1010.310:166.09:50-0.57:115:34New Moon16Fri
17Sat5:1411.83:5510.310:535.510:28-0.27:105:36New Moon17Sat
18Sun5:3911.84:3810.211:255.011:050.27:085:37New Moon18Sun
19Mon6:0111.75:2010.111:574.511:400.77:065:39New Moon19Mon
20Tue6:2511.76:029.912:284.07:045:40Waxing Crescent20Tue
21Wed6:5011.66:459.712:151.51:023.57:035:42Waxing Crescent21Wed
22Thu7:1911.57:329.412:502.31:383.07:015:43Waxing Crescent22Thu
23Fri7:5011.28:239.11:263.42:182.66:595:45Waxing Crescent23Fri
24Sat8:2310.99:218.92:054.43:022.36:575:46First Quarter24Sat
25Sun9:0110.410:338.72:485.53:522.16:555:48First Quarter25Sun
26Mon9:4410.03:446.54:471.86:545:50First Quarter26Mon
27Tue12:028.910:37 AM9.75:007.35:461.46:525:51First Quarter27Tue
28Wed1:319.411:38 AM9.66:327.56:460.86:505:53Waxing Gibbous28Wed
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 5:16 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 spring phase. Tonight's moon is 83% 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 Waning Gibbous (83% 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