Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Westport Harbor, MA.
Next low tide : in 3h 35m at 8:56 pm (0.6 ft)
Next high tide (tomorrow) : 2:29 am (2.8 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 - Jul 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:482.84:283.59:500.111:060.35:148:22Waxing Gibbous1Fri
2Sat4:532.95:303.710:490.05:148:22Waxing Gibbous2Sat
3Sun5:583.06:313.912:070.111:45 AM-0.15:158:21Waxing Gibbous3Sun
4Mon6:583.27:274.11:040.012:39-0.25:168:21Full Moon4Mon
5Tue7:533.48:214.22:00-0.11:34-0.25:168:21Full Moon5Tue
6Wed8:473.59:134.22:57-0.22:31-0.25:178:21Full Moon6Wed
7Thu9:393.610:064.13:51-0.23:28-0.25:178:20Full Moon7Thu
8Fri10:323.510:583.94:39-0.14:230.05:188:20Waning Gibbous8Fri
9Sat11:253.511:503.65:210.05:140.25:198:20Waning Gibbous9Sat
10Sun12:203.46:000.16:070.45:198:19Waning Gibbous10Sun
11Mon12:423.31:143.36:400.37:080.65:208:19Third Quarter11Mon
12Tue1:343.02:063.27:240.48:350.75:218:18Third Quarter12Tue
13Wed2:242.82:583.08:120.59:560.85:228:18Third Quarter13Wed
14Thu3:142.63:513.09:030.610:520.85:228:17Third Quarter14Thu
15Fri4:092.44:472.99:530.611:360.75:238:17Waning Crescent15Fri
16Sat5:072.45:422.910:430.55:248:16Waning Crescent16Sat
17Sun6:012.46:303.012:160.611:31 AM0.55:258:15Waning Crescent17Sun
18Mon6:482.57:113.012:550.512:170.45:268:15Waning Crescent18Mon
19Tue7:302.67:493.11:360.41:020.35:278:14New Moon19Tue
20Wed8:102.78:253.22:180.31:460.25:288:13New Moon20Wed
21Thu8:492.89:013.23:000.22:310.25:288:12New Moon21Thu
22Fri9:282.99:393.33:380.23:140.25:298:11New Moon22Fri
23Sat10:083.010:193.34:110.13:560.25:308:11Waxing Crescent23Sat
24Sun10:513.011:023.24:410.14:370.25:318:10Waxing Crescent24Sun
25Mon11:363.111:483.15:110.15:190.35:328:09Waxing Crescent25Mon
26Tue12:253.15:450.16:060.35:338:08Waxing Crescent26Tue
27Wed12:393.01:153.26:260.27:020.45:348:07First Quarter27Wed
28Thu1:322.92:083.37:140.28:120.55:358:06First Quarter28Thu
29Fri2:282.93:043.48:130.29:380.55:368:05First Quarter29Fri
30Sat3:282.84:063.59:180.211:010.45:378:04Waxing Gibbous30Sat
31Sun4:352.85:133.610:250.25:388:03Waxing Gibbous31Sun
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 11:42 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