Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Seattle, WA.
Next low tide : 6:12 pm (7.1 ft)
Next high tide : in 6h 52m at 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 - Sep 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:0110.13:5410.78:04-0.69:176.46:297:49Waxing Gibbous1Sat
2Sun2:0910.14:4011.29:03-0.810:135.86:307:47Waxing Gibbous2Sun
3Mon3:1110.25:1811.49:55-0.910:575.16:317:45Full Moon3Mon
4Tue4:0710.35:5011.510:42-0.811:364.46:337:43Full Moon4Tue
5Wed4:5710.46:1811.511:25-0.46:347:41Full Moon5Wed
6Thu5:4510.36:4511.412:133.712:050.36:357:39Full Moon6Thu
7Fri6:3210.27:1211.212:483.112:451.16:377:37Waning Gibbous7Fri
8Sat7:1910.07:4110.91:242.61:242.26:387:35Waning Gibbous8Sat
9Sun8:079.88:1210.62:002.12:043.36:397:33Waning Gibbous9Sun
10Mon8:599.58:4510.22:391.82:464.46:417:31Waning Gibbous10Mon
11Tue9:569.39:239.73:211.63:345.56:427:29Third Quarter11Tue
12Wed11:039.110:079.24:071.64:346.46:437:27Third Quarter12Wed
13Thu12:269.15:001.65:597.06:457:25Third Quarter13Thu
14Fri1:559.45:591.67:487.16:467:22Third Quarter14Fri
15Sat12:078.42:599.87:011.58:586.86:477:20Waning Crescent15Sat
16Sun1:158.53:4110.27:591.19:376.36:497:18Waning Crescent16Sun
17Mon2:158.84:1310.68:520.710:065.76:507:16Waning Crescent17Mon
18Tue3:079.34:4010.99:380.410:344.96:517:14Waning Crescent18Tue
19Wed3:549.85:0711.210:210.211:044.06:537:12New Moon19Wed
20Thu4:4010.35:3511.411:030.311:382.96:547:10New Moon20Thu
21Fri5:2610.76:0411.611:440.76:557:08New Moon21Fri
22Sat6:1610.96:3711.712:151.912:261.56:577:06Waxing Crescent22Sat
23Sun7:0811.07:1211.712:560.81:102.56:587:04Waxing Crescent23Sun
24Mon8:0510.97:5011.41:400.01:583.76:597:02Waxing Crescent24Mon
25Tue9:0710.78:3211.02:28-0.52:504.97:017:00Waxing Crescent25Tue
26Wed10:1710.59:2110.43:20-0.63:536.07:026:58First Quarter26Wed
27Thu11:4010.310:219.84:18-0.55:136.77:036:56First Quarter27Thu
28Fri1:1110.55:22-0.16:526.87:056:54First Quarter28Fri
29Sat2:2610.86:320.28:206.17:066:52Waxing Gibbous29Sat
30Sun1:019.03:2111.27:410.49:205.27:086:50Waxing Gibbous30Sun
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 4:09 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 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