Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in Seattle, WA.
Next low tide (tomorrow) : in 1h 01m at 11:17 pm (7.6 ft)
Next high tide : 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 - Jun 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:378.510:3911.43:477.62:59-0.95:158:59Waxing Crescent1Sat
2Sun8:378.011:2111.44:457.13:47-0.25:149:00First Quarter2Sun
3Mon9:557.55:446.34:370.85:149:00First Quarter3Mon
4Tue12:0011.411:23 AM7.36:385.15:322.05:139:01First Quarter4Tue
5Wed12:3711.512:567.57:253.56:323.35:139:02First Quarter5Wed
6Thu1:1211.62:258.28:081.77:354.75:129:03Waxing Gibbous6Thu
7Fri1:4611.83:439.38:51-0.28:405.95:129:04Waxing Gibbous7Fri
8Sat2:2211.94:5010.49:33-1.89:446.95:119:04Waxing Gibbous8Sat
9Sun3:0011.95:5011.310:17-3.210:457.55:119:05Full Moon9Sun
10Mon3:4111.86:4412.011:02-4.011:447.95:119:06Full Moon10Mon
11Tue4:2511.67:3612.311:48-4.35:119:06Full Moon11Tue
12Wed5:1511.18:2512.412:438.012:35-4.15:119:07Waning Gibbous12Wed
13Thu6:0910.59:1312.41:427.81:24-3.45:109:07Waning Gibbous13Thu
14Fri7:089.810:0012.22:467.32:13-2.45:109:08Waning Gibbous14Fri
15Sat8:138.910:4412.03:546.73:04-1.15:109:08Waning Gibbous15Sat
16Sun9:268.011:2611.85:045.83:550.45:109:09Third Quarter16Sun
17Mon10:517.36:104.74:492.05:109:09Third Quarter17Mon
18Tue12:0511.512:317.17:073.45:473.75:109:10Third Quarter18Tue
19Wed12:4111.22:167.67:552.26:545.35:119:10Waning Crescent19Wed
20Thu1:1510.93:458.58:351.18:096.55:119:10Waning Crescent20Thu
21Fri1:4810.64:509.59:100.19:237.35:119:10Waning Crescent21Fri
22Sat2:2010.35:4010.49:43-0.610:287.85:119:11Waning Crescent22Sat
23Sun2:5210.16:2010.910:14-1.211:208.05:129:11Waning Crescent23Sun
24Mon3:269.96:5411.310:46-1.65:129:11New Moon24Mon
25Tue4:019.87:2411.412:038.111:21 AM-1.95:129:11New Moon25Tue
26Wed4:389.67:5311.512:388.111:57 AM-2.05:139:11New Moon26Wed
27Thu5:179.58:2211.61:127.912:34-2.15:139:11New Moon27Thu
28Fri5:599.48:5211.71:477.71:13-1.95:149:11Waxing Crescent28Fri
29Sat6:459.19:2311.82:277.31:53-1.65:149:11Waxing Crescent29Sat
30Sun7:378.79:5511.93:116.72:34-0.95:159:10Waxing Crescent30Sun
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 1:14 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