Tides Today & Tomorrow in Westport, Grays Harbor, WA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Westport, Grays Harbor, WA.
Next low tide : 10:56 am (2.1 ft)
Next high tide : in 3h 28m at 5:24 am (6.8 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:18 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9441102
Common Questions About Tides

Westport, Grays Harbor, WA Tides - Nov 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:218.512:1110.05:511.96:32-0.76:585:01New Moon1Fri
2Sat1:078.512:439.96:292.57:10-0.77:004:59New Moon2Sat
3Sun1:508.31:159.87:063.17:47-0.67:014:58Waxing Crescent3Sun
4Mon2:338.11:469.57:433.68:25-0.27:034:56Waxing Crescent4Mon
5Tue3:167.82:179.18:214.29:060.37:044:55Waxing Crescent5Tue
6Wed4:037.52:528.69:024.69:500.87:064:54Waxing Crescent6Wed
7Thu4:537.23:358.19:524.910:411.37:074:52First Quarter7Thu
8Fri5:497.04:307.610:575.111:381.67:094:51First Quarter8Fri
9Sat6:497.05:427.112:135.07:104:49First Quarter9Sat
10Sun7:467.37:026.912:381.81:274.47:124:48First Quarter10Sun
11Mon8:347.78:167.01:371.92:293.67:134:47Waxing Gibbous11Mon
12Tue9:148.29:207.22:291.83:202.67:154:46Waxing Gibbous12Tue
13Wed9:518.810:167.63:161.84:041.57:164:45Waxing Gibbous13Wed
14Thu10:269.411:097.93:591.94:460.57:184:43Waxing Gibbous14Thu
15Fri11:019.94:402.25:28-0.57:194:42Full Moon15Fri
16Sat12:008.311:38 AM10.35:222.46:10-1.27:204:41Full Moon16Sat
17Sun12:508.512:1610.66:042.86:54-1.77:224:40Full Moon17Sun
18Mon1:408.612:5710.76:473.17:39-1.87:234:39Waning Gibbous18Mon
19Tue2:308.51:4010.67:333.58:26-1.67:254:38Waning Gibbous19Tue
20Wed3:238.32:2910.28:223.89:18-1.27:264:37Waning Gibbous20Wed
21Thu4:198.13:249.69:204.110:14-0.67:284:36Waning Gibbous21Thu
22Fri5:188.04:288.910:294.211:140.07:294:35Third Quarter22Fri
23Sat6:198.15:428.111:464.07:304:35Third Quarter23Sat
24Sun7:198.37:027.612:170.61:073.57:324:34Third Quarter24Sun
25Mon8:148.88:207.41:191.22:202.67:334:33Waning Crescent25Mon
26Tue9:029.29:307.52:171.63:211.67:344:32Waning Crescent26Tue
27Wed9:459.610:317.73:092.14:110.77:364:32Waning Crescent27Wed
28Thu10:249.911:267.93:572.54:550.17:374:31Waning Crescent28Thu
29Fri11:0110.14:412.95:35-0.47:384:31New Moon29Fri
30Sat12:158.111:37 AM10.15:233.46:13-0.67:394:30New Moon30Sat
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 8:10 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 Westport, Grays Harbor, WA?

Westport, Grays Harbor, WA is currently in a transitional phase. Tonight's moon is 37% 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 (37% 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