Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 5:20 pm (0.3 ft)
Next high tide : in 2h 58m at 11:24 am (3.7 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Oct 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:103.58:303.21:51-0.12:260.05:405:27Full Moon1Wed
2Thu8:503.69:143.22:25-0.13:050.05:415:26Waning Gibbous2Thu
3Fri9:333.610:013.03:00-0.13:440.15:425:24Waning Gibbous3Fri
4Sat10:213.510:542.93:390.04:260.35:435:22Waning Gibbous4Sat
5Sun11:153.411:512.84:210.15:160.45:445:21Third Quarter5Sun
6Mon12:153.35:110.36:250.65:455:19Third Quarter6Mon
7Tue12:522.81:183.36:120.48:490.65:465:17Third Quarter7Tue
8Wed1:542.82:233.37:330.510:010.55:475:16Third Quarter8Wed
9Thu2:592.93:323.39:110.510:520.35:495:14Waning Crescent9Thu
10Fri4:063.24:383.410:300.311:320.25:505:12Waning Crescent10Fri
11Sat5:063.55:343.611:280.15:515:11Waning Crescent11Sat
12Sun5:593.86:243.612:070.112:170.05:525:09New Moon12Sun
13Mon6:484.07:103.612:390.01:03-0.15:535:08New Moon13Mon
14Tue7:344.17:553.51:10-0.11:48-0.15:545:06New Moon14Tue
15Wed8:184.08:393.41:44-0.12:300.05:555:04New Moon15Wed
16Thu9:023.99:243.22:190.03:090.15:565:03Waxing Crescent16Thu
17Fri9:473.610:092.92:560.13:470.25:575:01Waxing Crescent17Fri
18Sat10:333.310:572.73:340.24:250.45:595:00Waxing Crescent18Sat
19Sun11:213.011:482.54:140.45:080.66:004:58Waxing Crescent19Sun
20Mon12:132.84:590.66:020.86:014:57First Quarter20Mon
21Tue12:402.41:052.65:520.87:280.96:024:55First Quarter21Tue
22Wed1:322.31:582.57:040.98:580.96:034:54First Quarter22Wed
23Thu2:262.32:532.58:360.99:500.76:044:52First Quarter23Thu
24Fri3:232.43:492.59:480.710:280.66:054:51Waxing Gibbous24Fri
25Sat4:172.64:382.710:390.511:010.46:074:50Waxing Gibbous25Sat
26Sun5:032.85:202.811:220.311:320.26:084:48Waxing Gibbous26Sun
27Mon5:433.16:013.012:020.26:094:47Waxing Gibbous27Mon
28Tue6:223.46:413.112:040.012:420.06:104:45Full Moon28Tue
29Wed7:013.67:233.212:38-0.11:23-0.16:114:44Full Moon29Wed
30Thu7:423.78:073.21:14-0.22:05-0.16:134:43Full Moon30Thu
31Fri8:253.88:543.21:53-0.32:48-0.16:144:41Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447975)

Common Questions About Westport Harbor, MA Tides

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

Slack tide in Westport Harbor, MA is approximately 2:22 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 Harbor, MA?

Westport Harbor, MA is currently in a spring phase. Tonight's moon is 18% 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 Westport Harbor, MA 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 Harbor, MA?

Tide predictions for Westport Harbor, MA 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 Harbor, MA?

Tide data for Westport Harbor, MA is sourced from NOAA Station #8447975. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447975.

What is the moon phase in Westport Harbor, MA tonight?

Tonight the moon over Westport Harbor, MA is Waxing Crescent (18% illuminated). This places Westport Harbor, MA 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