Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 5:51 am (0.2 ft)
Next high tide : in 2h 45m at 11:51 pm (2.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Aug 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:362.86:093.711:250.15:398:01Waxing Gibbous1Thu
2Fri6:383.17:083.912:460.112:25-0.15:408:00Waxing Gibbous2Fri
3Sat7:343.48:024.11:400.01:22-0.25:417:59Full Moon3Sat
4Sun8:273.68:544.22:33-0.22:21-0.35:427:58Full Moon4Sun
5Mon9:203.89:464.23:25-0.23:20-0.35:437:57Full Moon5Mon
6Tue10:123.910:374.04:11-0.34:17-0.25:447:55Waning Gibbous6Tue
7Wed11:053.911:293.74:52-0.25:10-0.15:457:54Waning Gibbous7Wed
8Thu11:593.85:31-0.16:050.25:467:53Waning Gibbous8Thu
9Fri12:223.512:543.66:110.17:100.45:477:52Third Quarter9Fri
10Sat1:163.21:493.56:540.38:490.65:487:50Third Quarter10Sat
11Sun2:102.92:443.37:440.510:110.75:497:49Third Quarter11Sun
12Mon3:052.73:423.18:430.611:120.75:507:48Third Quarter12Mon
13Tue4:052.54:453.09:460.711:590.75:517:46Waning Crescent13Tue
14Wed5:072.55:473.010:450.75:527:45Waning Crescent14Wed
15Thu6:052.66:383.012:370.711:38 AM0.65:537:43Waning Crescent15Thu
16Fri6:542.77:223.11:100.612:250.55:547:42Waning Crescent16Fri
17Sat7:372.87:593.21:420.51:090.45:557:40New Moon17Sat
18Sun8:152.98:343.22:170.41:540.35:567:39New Moon18Sun
19Mon8:523.09:063.22:520.32:380.25:577:38New Moon19Mon
20Tue9:283.19:393.23:250.23:200.25:587:36New Moon20Tue
21Wed10:033.110:133.13:550.24:000.25:597:34Waxing Crescent21Wed
22Thu10:403.110:503.04:230.24:370.36:007:33Waxing Crescent22Thu
23Fri11:193.111:312.94:510.25:140.36:017:31Waxing Crescent23Fri
24Sat12:013.15:210.25:530.46:027:30Waxing Crescent24Sat
25Sun12:182.712:483.15:570.36:400.56:047:28First Quarter25Sun
26Mon1:092.61:393.16:410.37:420.66:057:27First Quarter26Mon
27Tue2:042.62:353.27:370.49:030.76:067:25First Quarter27Tue
28Wed3:042.63:383.38:470.410:350.66:077:23First Quarter28Wed
29Thu4:102.74:473.410:020.311:430.46:087:22Waxing Gibbous29Thu
30Fri5:192.95:543.611:150.26:097:20Waxing Gibbous30Fri
31Sat6:223.26:533.912:360.212:190.06:107:19Waxing 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 2:51 am — 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 81% 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 (81% 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