Tides Today & Tomorrow in Westport, Grays Harbor, WA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Westport, Grays Harbor, WA.
Next low tide (tomorrow) : 3:15 am (1.3 ft)
Next high tide : in 5h 25m at 7:59 pm (7.7 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9441102
Common Questions About Tides

Westport, Grays Harbor, WA Tides - Mar 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:099.94:552.65:32-0.76:576:00Full Moon1Thu
2Fri12:119.011:59 AM10.25:431.86:15-0.96:556:02Full Moon2Fri
3Sat12:529.512:4910.36:311.16:57-0.96:536:03Full Moon3Sat
4Sun1:329.91:3710.17:180.57:38-0.66:516:05Waning Gibbous4Sun
5Mon2:1210.22:279.78:060.18:210.06:496:06Waning Gibbous5Mon
6Tue2:5310.33:199.18:550.09:050.76:476:08Waning Gibbous6Tue
7Wed3:3710.14:158.49:490.29:531.76:466:09Waning Gibbous7Wed
8Thu4:249.85:197.710:470.510:482.66:446:10Third Quarter8Thu
9Fri5:189.46:307.211:520.811:523.36:426:12Third Quarter9Fri
10Sat6:219.07:497.11:021.06:406:13Third Quarter10Sat
11Sun7:308.89:047.31:063.72:141.16:386:15Waning Crescent11Sun
12Mon8:398.710:057.72:213.73:190.96:366:16Waning Crescent12Mon
13Tue9:408.910:538.23:273.44:110.76:346:17Waning Crescent13Tue
14Wed10:349.011:338.54:222.94:560.66:326:19Waning Crescent14Wed
15Thu11:219.15:082.45:340.56:306:20New Moon15Thu
16Fri12:098.812:049.25:491.96:100.66:286:22New Moon16Fri
17Sat12:429.012:449.16:281.66:440.86:266:23New Moon17Sat
18Sun1:139.11:218.97:041.37:161.16:246:25New Moon18Sun
19Mon1:439.21:588.67:401.17:481.56:226:26Waxing Crescent19Mon
20Tue2:129.12:358.38:161.18:191.96:206:27Waxing Crescent20Tue
21Wed2:409.03:137.88:521.18:502.56:186:29Waxing Crescent21Wed
22Thu3:108.83:567.49:311.39:223.06:166:30Waxing Crescent22Thu
23Fri3:428.64:466.910:161.510:003.56:146:31First Quarter23Fri
24Sat4:238.35:486.611:101.610:544.06:126:33First Quarter24Sat
25Sun5:168.17:026.512:131.76:106:34First Quarter25Sun
26Mon6:257.98:156.712:134.21:221.56:086:36First Quarter26Mon
27Tue7:438.09:167.21:344.02:261.16:066:37Waxing Gibbous27Tue
28Wed8:548.410:077.92:433.43:230.56:046:38Waxing Gibbous28Wed
29Thu9:558.910:528.63:422.54:140.16:026:40Waxing Gibbous29Thu
30Fri10:529.311:359.34:351.55:01-0.36:006:41Waxing Gibbous30Fri
31Sat11:459.65:250.65:46-0.45:586:42Full Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9441102)

Common Questions About Westport, Grays Harbor, WA Tides

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What time does the tide turn (slack tide) in Westport, Grays Harbor, WA today?

Slack tide in Westport, Grays Harbor, WA is approximately 11:37 pm — 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 Westport, Grays Harbor, WA?

Westport, Grays Harbor, WA is currently in a transitional phase. Tonight's moon is 66% 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 Westport, Grays Harbor, 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 Westport, Grays Harbor, WA?

Tide predictions for Westport, Grays Harbor, 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 Westport, Grays Harbor, WA?

Tide data for Westport, Grays Harbor, WA is sourced from NOAA Station #9441102. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9441102.

What is the moon phase in Westport, Grays Harbor, WA tonight?

Tonight the moon over Westport, Grays Harbor, WA is First Quarter (66% illuminated). This places Westport, Grays Harbor, 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