Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 5h 42m at 12:08 pm (-1.3 ft)
Next high tide : 7:29 pm (11.4 ft)
Sunset today : 8:46 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Jul 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:249.96:4311.410:39-1.511:587.65:169:10New Moon1Sat
2Sun4:069.87:1111.411:14-1.65:179:10New Moon2Sun
3Mon4:469.67:3411.412:317.411:50 AM-1.65:189:09New Moon3Mon
4Tue5:279.57:5711.51:027.112:25-1.45:189:09New Moon4Tue
5Wed6:099.38:2011.51:336.71:00-1.15:199:09Waxing Crescent5Wed
6Thu6:549.08:4611.62:076.11:36-0.65:209:08Waxing Crescent6Thu
7Fri7:428.69:1411.72:455.52:120.35:219:08Waxing Crescent7Fri
8Sat8:358.29:4311.73:274.72:491.45:229:07Waxing Crescent8Sat
9Sun9:377.810:1411.64:113.73:272.85:239:06First Quarter9Sun
10Mon10:517.610:4811.44:592.74:114.35:239:06First Quarter10Mon
11Tue12:197.85:501.65:045.95:249:05First Quarter11Tue
12Wed2:038.46:430.46:167.25:259:04First Quarter12Wed
13Thu12:0911.13:359.47:38-0.77:438.05:269:04Waxing Gibbous13Thu
14Fri1:0011.14:3710.38:32-1.89:048.35:279:03Waxing Gibbous14Fri
15Sat1:5611.15:2411.19:25-2.710:108.05:289:02Waxing Gibbous15Sat
16Sun2:5411.26:0411.610:16-3.311:067.55:299:01Full Moon16Sun
17Mon3:5211.36:4112.011:05-3.511:576.85:309:00Full Moon17Mon
18Tue4:5011.27:1712.211:53-3.35:328:59Full Moon18Tue
19Wed5:4910.87:5112.412:475.912:39-2.65:338:58Waning Gibbous19Wed
20Thu6:5010.38:2612.41:384.91:25-1.45:348:57Waning Gibbous20Thu
21Fri7:549.69:0112.32:303.82:100.15:358:56Waning Gibbous21Fri
22Sat9:028.99:3612.13:232.92:571.95:368:55Third Quarter22Sat
23Sun10:198.410:1411.64:182.03:473.85:378:54Third Quarter23Sun
24Mon11:538.210:5411.15:131.34:455.65:388:53Third Quarter24Mon
25Tue1:468.66:110.86:047.05:408:51Third Quarter25Tue
26Wed3:219.47:080.47:517.75:418:50Waning Crescent26Wed
27Thu12:349.94:2410.28:030.09:247.75:428:49Waning Crescent27Thu
28Fri1:319.65:0910.78:53-0.310:247.55:438:48Waning Crescent28Fri
29Sat2:279.55:4411.09:38-0.611:057.25:458:46Waning Crescent29Sat
30Sun3:169.56:1211.010:18-0.811:366.85:468:45New Moon30Sun
31Mon4:019.66:3311.110:55-0.95:478:44New Moon31Mon
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 3:48 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 99% 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 Full Moon (99% 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