Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Seattle, WA.
Next low tide (tomorrow) : 5:20 am (2.9 ft)
Next high tide : in 4h 58m at 10:34 pm (11.7 ft)
Sunset today : 9:08 pm
Sunrise tomorrow : 5:19 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Dec 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:3411.72:3312.19:357.79:52-3.67:364:20Full Moon1Sat
2Sun5:2612.43:1712.010:308.010:38-4.07:374:19Full Moon2Sun
3Mon6:1512.84:0611.711:258.111:25-3.97:394:19Full Moon3Mon
4Tue7:0412.94:5911.212:227.97:404:19Waning Gibbous4Tue
5Wed7:5212.95:5710.512:14-3.41:237.57:414:18Waning Gibbous5Wed
6Thu8:3912.77:039.61:03-2.42:306.97:424:18Waning Gibbous6Thu
7Fri9:2512.68:178.61:54-1.03:426.07:434:18Third Quarter7Fri
8Sat10:0912.39:467.82:460.74:534.87:444:18Third Quarter8Sat
9Sun10:5212.111:337.63:422.45:563.57:454:17Third Quarter9Sun
10Mon11:3211.84:444.26:492.37:464:17Third Quarter10Mon
11Tue1:238.212:1111.55:575.87:331.17:474:17Waning Crescent11Tue
12Wed2:499.312:4711.27:177.08:100.27:484:17Waning Crescent12Wed
13Thu3:5310.31:2210.88:337.78:44-0.57:494:18Waning Crescent13Thu
14Fri4:4111.21:5710.69:368.19:16-1.07:504:18Waning Crescent14Fri
15Sat5:2111.72:3310.310:288.29:48-1.37:504:18New Moon15Sat
16Sun5:5412.03:0910.211:108.310:22-1.57:514:18New Moon16Sun
17Mon6:2312.13:4710.011:458.210:56-1.57:524:18New Moon17Mon
18Tue6:5012.14:269.812:188.07:524:19New Moon18Tue
19Wed7:1612.15:079.612:537.87:534:19Waxing Crescent19Wed
20Thu7:4412.25:519.312:09-1.21:307.47:544:19Waxing Crescent20Thu
21Fri8:1412.26:408.912:47-0.82:136.87:544:20Waxing Crescent21Fri
22Sat8:4412.37:378.41:260.02:596.17:554:20Waxing Crescent22Sat
23Sun9:1612.38:467.92:051.03:485.17:554:21First Quarter23Sun
24Mon9:4912.210:087.72:482.44:383.87:564:22First Quarter24Mon
25Tue10:2412.111:448.03:354.05:292.47:564:22First Quarter25Tue
26Wed11:0112.04:335.76:200.97:564:23First Quarter26Wed
27Thu1:268.811:42 AM12.05:467.27:10-0.67:564:24Waxing Gibbous27Thu
28Fri2:5110.012:2812.07:078.27:59-1.97:574:24Waxing Gibbous28Fri
29Sat3:5311.11:1712.08:248.78:48-3.07:574:25Waxing Gibbous29Sat
30Sun4:4312.02:1012.09:308.79:37-3.67:574:26Full Moon30Sun
31Mon5:2712.53:0411.910:278.410:25-3.67:574:27Full 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 1:57 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 61% 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 Third Quarter (61% 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