Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Seattle, WA.
Next low tide : in 1h 32m at 6:28 am (1.2 ft)
Next high tide : 2:07 pm (8.4 ft)
Sunset today : 8:56 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Jul 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:217.911:2811.95:134.44:321.85:169:10First Quarter1Sun
2Mon11:477.76:103.25:293.25:179:10First Quarter2Mon
3Tue12:1111.81:208.07:061.86:364.65:179:10First Quarter3Tue
4Wed12:5511.82:508.87:590.37:485.75:189:09Waxing Gibbous4Wed
5Thu1:4111.84:059.88:50-1.18:596.45:199:09Waxing Gibbous5Thu
6Fri2:2711.85:0610.89:38-2.210:056.85:199:08Waxing Gibbous6Fri
7Sat3:1511.75:5711.510:25-3.011:056.85:209:08Full Moon7Sat
8Sun4:0311.56:4412.011:11-3.35:219:07Full Moon8Sun
9Mon4:5311.27:2812.212:006.711:56 AM-3.35:229:07Full Moon9Mon
10Tue5:4510.78:0912.312:536.412:41-2.85:239:06Waning Gibbous10Tue
11Wed6:3810.28:4912.21:466.11:27-2.15:249:05Waning Gibbous11Wed
12Thu7:349.59:2812.12:405.62:12-1.05:259:05Waning Gibbous12Thu
13Fri8:348.810:0611.83:365.02:570.35:269:04Waning Gibbous13Fri
14Sat9:398.110:4511.54:334.43:451.85:279:03Third Quarter14Sat
15Sun10:557.611:2511.15:303.74:363.35:289:02Third Quarter15Sun
16Mon12:277.56:262.95:354.85:299:02Third Quarter16Mon
17Tue12:0710.72:107.97:192.16:476.05:309:01Third Quarter17Tue
18Wed12:5010.43:348.78:051.38:086.75:319:00Waning Crescent18Wed
19Thu1:3310.24:339.58:470.69:227.15:328:59Waning Crescent19Thu
20Fri2:1610.05:1610.19:26-0.110:187.25:338:58Waning Crescent20Fri
21Sat2:579.95:5110.610:02-0.611:007.25:348:57Waning Crescent21Sat
22Sun3:369.96:2010.910:38-1.111:357.15:358:56New Moon22Sun
23Mon4:159.96:4711.211:14-1.55:378:54New Moon23Mon
24Tue4:5410.07:1411.412:086.811:51 AM-1.75:388:53New Moon24Tue
25Wed5:3510.07:4311.612:436.512:30-1.75:398:52New Moon25Wed
26Thu6:209.88:1511.81:206.01:09-1.45:408:51Waxing Crescent26Thu
27Fri7:099.68:4811.92:025.41:50-0.85:418:50Waxing Crescent27Fri
28Sat8:039.39:2312.02:474.62:320.25:438:48Waxing Crescent28Sat
29Sun9:058.810:0111.93:373.83:181.55:448:47First Quarter29Sun
30Mon10:168.410:4211.74:312.84:083.05:458:46First Quarter30Mon
31Tue11:418.311:2811.55:291.85:074.65:468:44First Quarter31Tue
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 10:17 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 63% 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 First Quarter (63% 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