Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Seattle, WA.
Next low tide (tomorrow) : in 3h 43m at 12:36 am (6.6 ft)
Next high tide (tomorrow) : 5:18 am (9.7 ft)
Sunset today : 8:48 pm
Sunrise tomorrow : 5:43 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Feb 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:1811.73:0810.310:367.610:09-1.47:345:10Full Moon1Mon
2Tue5:3811.93:5410.511:046.910:46-1.47:335:12Full Moon2Tue
3Wed5:5912.24:4110.511:366.011:24-1.17:325:14Full Moon3Wed
4Thu6:2212.45:3110.412:134.97:305:15Waning Gibbous4Thu
5Fri6:4812.66:2610.212:02-0.212:533.77:295:17Waning Gibbous5Fri
6Sat7:1612.77:269.812:411.01:372.57:275:18Waning Gibbous6Sat
7Sun7:4712.68:339.41:212.62:251.57:265:20Waning Gibbous7Sun
8Mon8:2012.49:549.12:054.43:180.67:245:21Third Quarter8Mon
9Tue8:5912.011:459.12:556.24:160.07:235:23Third Quarter9Tue
10Wed9:4611.44:037.85:20-0.47:215:25Third Quarter10Wed
11Thu1:519.910:47 AM10.95:488.76:27-0.77:205:26Waning Crescent11Thu
12Fri3:0510.812:0010.57:448.77:31-1.07:185:28Waning Crescent12Fri
13Sat3:5211.41:1510.38:598.08:28-1.37:175:29Waning Crescent13Sat
14Sun4:2911.92:2110.49:507.19:19-1.37:155:31Waning Crescent14Sun
15Mon4:5912.13:1910.410:306.310:03-1.17:135:32New Moon15Mon
16Tue5:2612.14:1110.411:075.410:44-0.57:125:34New Moon16Tue
17Wed5:4912.15:0110.211:414.511:220.37:105:36New Moon17Wed
18Thu6:1012.15:5010.012:153.67:085:37Waxing Crescent18Thu
19Fri6:3311.96:399.812:502.97:065:39Waxing Crescent19Fri
20Sat6:5711.77:309.512:342.71:252.27:055:40Waxing Crescent20Sat
21Sun7:2311.48:259.31:114.02:031.77:035:42Waxing Crescent21Sun
22Mon7:5211.09:299.01:495.42:441.47:015:43First Quarter22Mon
23Tue8:2310.510:528.92:316.73:311.36:595:45First Quarter23Tue
24Wed9:009.93:257.74:251.36:575:46First Quarter24Wed
25Thu12:589.19:50 AM9.45:028.55:261.26:555:48First Quarter25Thu
26Fri2:289.710:59 AM9.07:438.56:291.06:545:49Waxing Gibbous26Fri
27Sat3:1210.212:139.08:438.17:270.56:525:51Waxing Gibbous27Sat
28Sun3:4010.61:189.39:117.58:180.06:505:52Waxing Gibbous28Sun
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 2:57 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 spring phase. Tonight's moon is 100% 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 (100% 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