Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 4h 50m at 12:08 pm (-3.5 ft)
Next high tide : 7:42 pm (12.3 ft)
Sunset today : 9:03 pm
Sunrise tomorrow : 5:27 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Feb 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:0312.04:3210.211:406.211:13-0.67:365:09Full Moon1Fri
2Sat6:2712.05:1410.012:135.87:355:11Full Moon2Sat
3Sun6:5112.05:579.712:475.37:335:12Waning Gibbous3Sun
4Mon7:1711.96:429.412:240.51:224.87:325:14Waning Gibbous4Mon
5Tue7:4611.87:309.01:001.42:004.37:305:15Waning Gibbous5Tue
6Wed8:1811.78:248.61:362.42:423.87:295:17Waning Gibbous6Wed
7Thu8:5211.49:268.32:143.63:283.37:285:18Third Quarter7Thu
8Fri9:2811.010:428.22:564.94:182.77:265:20Third Quarter8Fri
9Sat10:1010.73:486.15:132.17:255:22Third Quarter9Sat
10Sun12:198.410:57 AM10.45:007.16:091.47:235:23Third Quarter10Sun
11Mon1:559.111:51 AM10.36:287.77:040.57:225:25Waning Crescent11Mon
12Tue2:5710.012:4610.47:487.77:55-0.37:205:26Waning Crescent12Tue
13Wed3:3910.71:4110.68:477.48:44-1.17:185:28Waning Crescent13Wed
14Thu4:1411.42:3411.09:346.99:31-1.77:175:29New Moon14Thu
15Fri4:4711.93:2611.210:186.210:16-2.07:155:31New Moon15Fri
16Sat5:2112.34:1911.411:015.311:01-1.87:135:33New Moon16Sat
17Sun5:5512.65:1411.311:454.311:46-1.17:125:34New Moon17Sun
18Mon6:3112.86:1011.112:323.47:105:36Waxing Crescent18Mon
19Tue7:0812.87:1110.612:32-0.11:212.57:085:37Waxing Crescent19Tue
20Wed7:4812.68:1610.01:191.42:141.87:075:39Waxing Crescent20Wed
21Thu8:2912.29:309.52:083.03:091.37:055:40First Quarter21Thu
22Fri9:1511.711:039.33:054.64:091.07:035:42First Quarter22Fri
23Sat10:0711.04:156.05:130.87:015:43First Quarter23Sat
24Sun12:519.611:09 AM10.45:477.06:190.66:595:45First Quarter24Sun
25Mon2:1710.212:1710.07:297.17:200.46:585:47Waxing Gibbous25Mon
26Tue3:1610.91:239.88:436.78:150.26:565:48Waxing Gibbous26Tue
27Wed3:5911.32:209.89:356.29:020.16:545:50Waxing Gibbous27Wed
28Thu4:3311.53:099.910:145.79:430.16:525:51Full Moon28Thu
29Fri5:0011.53:5210.010:455.210:200.36:505:53Full Moon29Fri
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 3:55 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 3% 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 New Moon (3% 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