Nearby Harbors
41.5084’ N, 71.0930’ W

Westport Harbor, MA

69°
H -°
L 66°
SSW
9mph
High tide
1:34 am
Photo Credits

Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Thursday, September 17, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 6:48 am (0.7 ft)
Next high tide (tomorrow) : in 5h 42m at 1:34 am (2.4 ft)
Sunset today : 6:50 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

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Aerial view of Cuttyhunk Marina.

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Westport Harbor, MA Tides - Nov 1923

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:352.512:482.76:040.67:050.66:154:40Third Quarter1Thu
2Fri1:282.61:432.87:130.68:220.56:164:39Third Quarter2Fri
3Sat2:242.82:432.98:310.59:240.36:174:38Waning Crescent3Sat
4Sun3:243.03:473.09:430.310:140.16:184:37Waning Crescent4Sun
5Mon4:253.44:483.310:430.011:00-0.26:204:36Waning Crescent5Mon
6Tue5:213.75:443.511:37-0.211:45-0.46:214:34Waning Crescent6Tue
7Wed6:134.16:373.712:28-0.46:224:33New Moon7Wed
8Thu7:044.37:283.812:30-0.51:21-0.56:234:32New Moon8Thu
9Fri7:554.48:203.81:18-0.62:14-0.56:244:31New Moon9Fri
10Sat8:474.39:123.72:07-0.53:06-0.46:264:30Waxing Crescent10Sat
11Sun9:404.110:073.52:57-0.43:57-0.26:274:29Waxing Crescent11Sun
12Mon10:353.911:043.33:46-0.24:480.06:284:28Waxing Crescent12Mon
13Tue11:333.64:370.15:500.36:294:27First Quarter13Tue
14Wed12:033.212:323.35:350.47:340.46:314:26First Quarter14Wed
15Thu1:033.01:303.17:060.68:500.56:324:25First Quarter15Thu
16Fri2:013.02:282.99:160.69:410.56:334:24First Quarter16Fri
17Sat3:012.93:282.810:130.610:160.46:344:23Waxing Gibbous17Sat
18Sun4:013.04:252.710:540.510:400.46:354:23Waxing Gibbous18Sun
19Mon4:553.15:152.811:250.411:050.36:374:22Waxing Gibbous19Mon
20Tue5:413.15:582.811:560.311:360.26:384:21Waxing Gibbous20Tue
21Wed6:213.26:372.812:290.26:394:20Full Moon21Wed
22Thu6:573.27:142.912:110.11:050.16:404:20Full Moon22Thu
23Fri7:313.27:502.812:480.01:440.06:414:19Full Moon23Fri
24Sat8:043.28:272.81:270.02:230.06:424:19Full Moon24Sat
25Sun8:383.19:052.72:060.03:000.16:444:18Waning Gibbous25Sun
26Mon9:143.09:452.62:450.03:340.16:454:17Waning Gibbous26Mon
27Tue9:542.910:292.63:230.14:080.26:464:17Waning Gibbous27Tue
28Wed10:382.911:182.64:020.24:440.36:474:17Waning Gibbous28Wed
29Thu11:292.84:450.35:270.36:484:16Third Quarter29Thu
30Fri12:092.612:222.85:370.46:200.36:494:16Third Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447975)

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Common Questions About Westport Harbor, MA Tides

Collapse All
Is this week a spring tide or neap tide in Westport Harbor, MA?

Westport Harbor, MA is currently in a transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 (39% illuminated). This places Westport Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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

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