Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Westport Harbor, MA.
Next low tide : in 5h 15m at 3:47 pm (0.2 ft)
Next high tide : 10:01 pm (3.2 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:38 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Mar 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:422.64:182.510:430.210:21-0.16:175:35Waxing Gibbous1Thu
2Fri4:462.95:172.811:28-0.111:17-0.36:165:36Waxing Gibbous2Fri
3Sat5:423.26:093.212:11-0.36:145:37Waxing Gibbous3Sat
4Sun6:333.56:593.512:09-0.512:54-0.56:135:38Full Moon4Sun
5Mon7:223.77:483.71:01-0.71:38-0.66:115:39Full Moon5Mon
6Tue8:113.88:373.91:53-0.82:21-0.76:095:40Full Moon6Tue
7Wed9:013.79:283.92:44-0.83:04-0.76:085:42Waning Gibbous7Wed
8Thu9:523.610:203.83:34-0.73:46-0.66:065:43Waning Gibbous8Thu
9Fri10:453.311:153.64:23-0.54:29-0.46:055:44Waning Gibbous9Fri
10Sat11:423.15:15-0.25:16-0.26:035:45Third Quarter10Sat
11Sun12:133.41:402.97:220.17:110.17:016:46Third Quarter11Sun
12Mon2:133.22:402.79:290.38:280.37:006:47Third Quarter12Mon
13Tue3:153.03:432.610:500.310:380.46:586:48Third Quarter13Tue
14Wed4:222.94:502.611:480.311:440.36:566:49Waning Crescent14Wed
15Thu5:282.85:512.712:320.36:556:51Waning Crescent15Thu
16Fri6:242.96:442.912:270.21:040.26:536:52Waning Crescent16Fri
17Sat7:113.07:293.012:590.11:280.16:516:53Waning Crescent17Sat
18Sun7:533.08:093.11:310.01:510.06:506:54New Moon18Sun
19Mon8:313.18:473.12:05-0.12:20-0.16:486:55New Moon19Mon
20Tue9:063.09:223.12:43-0.22:52-0.16:466:56New Moon20Tue
21Wed9:412.99:553.03:21-0.23:27-0.26:446:57New Moon21Wed
22Thu10:152.810:282.93:59-0.24:01-0.16:436:58Waxing Crescent22Thu
23Fri10:502.611:022.84:34-0.14:34-0.16:416:59Waxing Crescent23Fri
24Sat11:292.511:392.75:090.05:080.06:397:01Waxing Crescent24Sat
25Sun12:112.45:440.25:440.16:387:02Waxing Crescent25Sun
26Mon12:212.612:582.36:240.36:260.26:367:03First Quarter26Mon
27Tue1:102.51:482.37:140.47:200.36:347:04First Quarter27Tue
28Wed2:032.52:432.38:240.58:280.36:337:05First Quarter28Wed
29Thu3:022.63:432.59:510.49:440.26:317:06First Quarter29Thu
30Fri4:082.74:482.711:010.210:560.06:297:07Waxing Gibbous30Fri
31Sat5:152.95:503.111:520.011:58-0.26:287:08Waxing Gibbous31Sat
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 6:54 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 96% 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 Gibbous (96% 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