Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Westport Harbor, MA.
Next low tide : in 2h 29m at 12:09 pm (0.0 ft)
Next high tide : 6:52 pm (3.8 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Sep 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:083.15:403.611:090.16:107:17Waning Crescent1Sat
2Sun6:103.56:393.812:270.112:13-0.16:117:16Waning Crescent2Sun
3Mon7:063.87:324.01:110.01:09-0.26:127:14New Moon3Mon
4Tue7:584.18:224.01:53-0.22:04-0.36:137:12New Moon4Tue
5Wed8:484.29:114.02:35-0.32:58-0.36:147:11New Moon5Wed
6Thu9:374.29:593.83:15-0.33:48-0.26:157:09Waxing Crescent6Thu
7Fri10:264.110:483.53:54-0.24:330.06:167:07Waxing Crescent7Fri
8Sat11:163.911:383.34:32-0.15:160.26:177:06Waxing Crescent8Sat
9Sun12:083.65:110.16:000.56:187:04Waxing Crescent9Sun
10Mon12:303.01:023.35:520.46:510.76:197:02First Quarter10Mon
11Tue1:242.81:573.06:390.68:080.96:207:01First Quarter11Tue
12Wed2:182.62:522.87:390.89:560.96:216:59First Quarter12Wed
13Thu3:142.53:512.78:570.810:520.96:226:57First Quarter13Thu
14Fri4:132.54:522.710:200.811:310.76:236:55Waxing Gibbous14Fri
15Sat5:132.65:462.811:180.76:246:54Waxing Gibbous15Sat
16Sun6:042.76:292.912:050.612:050.56:256:52Waxing Gibbous16Sun
17Mon6:472.97:063.012:370.412:460.46:266:50Waxing Gibbous17Mon
18Tue7:243.17:403.11:090.31:270.26:276:48Full Moon18Tue
19Wed7:583.28:153.21:420.12:070.16:286:47Full Moon19Wed
20Thu8:333.48:513.22:150.02:460.16:296:45Full Moon20Thu
21Fri9:093.49:303.22:480.03:250.16:306:43Full Moon21Fri
22Sat9:483.510:123.13:230.04:020.16:316:42Waning Gibbous22Sat
23Sun10:303.410:583.03:580.04:390.26:326:40Waning Gibbous23Sun
24Mon11:173.411:492.94:360.05:190.36:346:38Waning Gibbous24Mon
25Tue12:103.35:180.16:060.46:356:36Waning Gibbous25Tue
26Wed12:452.91:083.36:070.27:060.66:366:35Third Quarter26Wed
27Thu1:432.92:083.37:070.48:460.66:376:33Third Quarter27Thu
28Fri2:432.93:113.38:240.410:310.56:386:31Third Quarter28Fri
29Sat3:473.14:173.39:530.411:250.36:396:30Waning Crescent29Sat
30Sun4:523.35:233.511:130.26:406:28Waning Crescent30Sun
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 3:30 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 6% 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 Waning Crescent (6% 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