Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 8:56 pm (0.6 ft)
Next high tide : in 6h 02m at 2:11 pm (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Sep 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:432.66:132.812:000.711:33 AM0.56:107:17Waning Crescent1Sun
2Mon6:302.86:523.012:350.512:200.46:117:15Waning Crescent2Mon
3Tue7:103.07:273.11:090.31:030.26:127:14New Moon3Tue
4Wed7:483.28:023.21:430.21:460.16:137:12New Moon4Wed
5Thu8:253.38:383.32:160.12:270.06:147:10New Moon5Thu
6Fri9:023.49:173.32:480.03:080.06:157:09New Moon6Fri
7Sat9:423.59:593.33:21-0.13:480.06:167:07Waxing Crescent7Sat
8Sun10:243.510:443.23:55-0.14:270.16:177:05Waxing Crescent8Sun
9Mon11:113.511:343.14:310.05:080.26:187:04Waxing Crescent9Mon
10Tue12:023.55:110.05:540.36:207:02Waxing Crescent10Tue
11Wed12:283.012:583.45:570.16:500.56:217:00First Quarter11Wed
12Thu1:262.91:573.46:520.38:070.66:226:58First Quarter12Thu
13Fri2:262.92:583.48:010.410:020.66:236:57First Quarter13Fri
14Sat3:293.04:043.49:280.411:140.46:246:55Waxing Gibbous14Sat
15Sun4:353.25:113.510:550.36:256:53Waxing Gibbous15Sun
16Mon5:403.46:113.712:030.212:020.16:266:52Waxing Gibbous16Mon
17Tue6:383.77:053.812:450.112:550.06:276:50Waxing Gibbous17Tue
18Wed7:293.97:543.91:220.01:45-0.16:286:48Full Moon18Wed
19Thu8:184.18:413.81:58-0.12:32-0.16:296:46Full Moon19Thu
20Fri9:054.19:273.72:35-0.13:170.06:306:45Full Moon20Fri
21Sat9:504.010:123.53:12-0.13:580.16:316:43Waning Gibbous21Sat
22Sun10:363.710:583.33:500.04:370.26:326:41Waning Gibbous22Sun
23Mon11:223.511:453.04:280.15:150.46:336:39Waning Gibbous23Mon
24Tue12:103.25:070.35:560.66:346:38Waning Gibbous24Tue
25Wed12:352.81:002.95:500.56:450.86:356:36Third Quarter25Wed
26Thu1:252.61:502.76:390.67:560.96:366:34Third Quarter26Thu
27Fri2:162.52:412.67:390.89:360.96:376:33Third Quarter27Fri
28Sat3:082.53:342.58:540.810:370.86:386:31Third Quarter28Sat
29Sun4:032.54:302.610:100.711:200.76:396:29Waning Crescent29Sun
30Mon4:592.65:232.711:100.611:560.56:406:27Waning Crescent30Mon
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 5:33 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Westport Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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