Tides Today & Tomorrow in Seattle, WA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Seattle, WA.
Next low tide (tomorrow) : 3:43 am (5.3 ft)
Next high tide : in 1h 11m at 9:34 pm (11.8 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9447130
Common Questions About Tides

Seattle, WA Tides - Jun 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:497.46:383.95:263.15:158:58Third Quarter1Wed
2Thu12:2611.21:267.57:342.96:314.45:148:59Third Quarter2Thu
3Fri1:0810.92:548.18:211.97:425.45:149:00Waning Crescent3Fri
4Sat1:4610.74:038.98:591.08:506.15:139:01Waning Crescent4Sat
5Sun2:2210.54:569.79:330.29:506.65:139:02Waning Crescent5Sun
6Mon2:5610.35:3910.210:05-0.410:396.95:129:03Waning Crescent6Mon
7Tue3:3010.26:1410.710:36-0.911:217.15:129:03New Moon7Tue
8Wed4:0410.16:4511.011:08-1.311:597.15:129:04New Moon8Wed
9Thu4:3910.07:1511.211:41-1.65:119:05New Moon9Thu
10Fri5:159.87:4511.512:357.112:17-1.85:119:06New Moon10Fri
11Sat5:559.78:1711.61:136.912:55-1.85:119:06Waxing Crescent11Sat
12Sun6:379.48:5111.81:556.71:35-1.55:119:07Waxing Crescent12Sun
13Mon7:269.19:2711.92:406.32:16-1.05:109:07Waxing Crescent13Mon
14Tue8:218.610:0511.93:295.63:00-0.15:109:08Waxing Crescent14Tue
15Wed9:278.110:4411.94:234.83:471.15:109:08First Quarter15Wed
16Thu10:437.811:2611.95:203.84:392.45:109:09First Quarter16Thu
17Fri12:117.86:172.55:383.95:109:09First Quarter17Fri
18Sat12:1011.81:468.37:131.16:475.25:109:09Waxing Gibbous18Sat
19Sun12:5511.83:129.28:06-0.38:016.25:119:10Waxing Gibbous19Sun
20Mon1:4311.84:2210.28:56-1.69:126.75:119:10Waxing Gibbous20Mon
21Tue2:3111.85:1811.09:45-2.510:176.95:119:10Waxing Gibbous21Tue
22Wed3:2111.66:0711.610:32-3.211:156.95:119:10Full Moon22Wed
23Thu4:1111.46:5212.011:18-3.45:129:11Full Moon23Thu
24Fri5:0211.17:3412.212:106.612:03-3.15:129:11Full Moon24Fri
25Sat5:5510.58:1312.31:036.212:48-2.65:129:11Waning Gibbous25Sat
26Sun6:509.98:5112.21:565.81:33-1.75:139:11Waning Gibbous26Sun
27Mon7:489.29:2912.02:505.22:17-0.55:139:11Waning Gibbous27Mon
28Tue8:498.510:0611.83:454.63:020.95:149:11Waning Gibbous28Tue
29Wed9:577.910:4411.54:423.93:492.45:149:11Third Quarter29Wed
30Thu11:177.511:2311.15:383.24:403.95:159:10Third Quarter30Thu
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 12:38 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 80% 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 Waning Gibbous (80% 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