Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Monday, July 27, 2026
The tide is currently rising in Seattle, WA.
Next low tide : 10:20 am (-1.0 ft)
Next high tide : in 3h 53m at 3:11 am (9.5 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - May 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:439.49:2911.02:117.51:56-1.15:518:21Waxing Crescent1Wed
2Thu7:149.010:1910.83:017.82:39-0.85:498:22Waxing Crescent2Thu
3Fri7:498.611:1510.74:027.93:26-0.35:488:24Waxing Crescent3Fri
4Sat8:418.15:227.84:200.25:468:25First Quarter4Sat
5Sun12:1410.610:06 AM7.76:517.35:180.75:448:27First Quarter5Sun
6Mon1:0510.711:41 AM7.57:436.46:201.25:438:28First Quarter6Mon
7Tue1:4610.91:097.78:195.27:201.95:418:29Waxing Gibbous7Tue
8Wed2:1911.22:278.38:533.68:182.65:408:31Waxing Gibbous8Wed
9Thu2:4911.43:359.29:281.89:133.55:398:32Waxing Gibbous9Thu
10Fri3:1811.74:3710.110:040.010:064.55:378:33Waxing Gibbous10Fri
11Sat3:4811.85:3611.010:43-1.710:585.65:368:35Full Moon11Sat
12Sun4:2111.96:3411.711:24-3.011:506.55:348:36Full Moon12Sun
13Mon4:5811.87:3112.112:07-3.85:338:37Full Moon13Mon
14Tue5:3811.58:2812.212:457.212:52-3.95:328:38Waning Gibbous14Tue
15Wed6:2410.99:2612.11:447.61:41-3.55:318:40Waning Gibbous15Wed
16Thu7:1610.110:2711.92:507.72:32-2.75:298:41Waning Gibbous16Thu
17Fri8:189.211:2711.74:097.53:27-1.65:288:42Third Quarter17Fri
18Sat9:338.35:396.94:26-0.35:278:43Third Quarter18Sat
19Sun12:2411.511:04 AM7.67:005.85:291.15:268:45Third Quarter19Sun
20Mon1:1311.412:457.38:004.56:352.45:258:46Third Quarter20Mon
21Tue1:5411.32:207.68:463.27:413.55:248:47Waning Crescent21Tue
22Wed2:2711.13:388.39:231.98:434.65:238:48Waning Crescent22Wed
23Thu2:5311.04:429.19:540.89:405.65:228:49Waning Crescent23Thu
24Fri3:1710.75:349.910:21-0.110:316.45:218:50Waning Crescent24Fri
25Sat3:4110.56:1810.510:47-0.811:187.05:208:52New Moon25Sat
26Sun4:0510.36:5611.011:15-1.45:198:53New Moon26Sun
27Mon4:3210.07:3111.312:027.511:44 AM-1.75:188:54New Moon27Mon
28Tue5:029.88:0411.412:447.812:17-1.95:178:55New Moon28Tue
29Wed5:349.58:3911.51:257.912:53-1.85:178:56Waxing Crescent29Wed
30Thu6:109.29:1711.52:077.91:33-1.75:168:57Waxing Crescent30Thu
31Fri6:498.99:5711.42:547.82:15-1.45:158:58Waxing Crescent31Fri
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 6:45 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 spring phase. Tonight's moon is 93% 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 Waxing Gibbous (93% 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