Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 4:59 pm (0.0 ft)
Next high tide : in 4h 01m at 11:01 am (3.7 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Sep 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:263.110:373.04:080.24:260.26:117:16Waxing Crescent1Tue
2Wed11:033.111:172.84:360.25:020.36:127:14Waxing Crescent2Wed
3Thu11:443.15:070.25:400.46:137:13Waxing Crescent3Thu
4Fri12:022.712:303.15:410.36:230.56:147:11First Quarter4Fri
5Sat12:532.61:213.16:230.47:190.66:157:09First Quarter5Sat
6Sun1:482.62:163.17:170.48:360.76:167:08First Quarter6Sun
7Mon2:462.63:173.28:250.510:110.66:177:06First Quarter7Mon
8Tue3:502.74:253.39:430.411:230.46:187:04Waxing Gibbous8Tue
9Wed4:582.95:333.510:580.26:197:02Waxing Gibbous9Wed
10Thu6:033.26:343.812:170.212:040.06:207:01Waxing Gibbous10Thu
11Fri6:593.67:284.01:040.01:02-0.26:216:59Full Moon11Fri
12Sat7:523.98:184.11:48-0.21:58-0.36:226:57Full Moon12Sat
13Sun8:424.19:074.12:32-0.32:54-0.36:236:56Full Moon13Sun
14Mon9:324.29:563.93:14-0.33:48-0.36:246:54Waning Gibbous14Mon
15Tue10:224.110:463.73:55-0.34:37-0.16:256:52Waning Gibbous15Tue
16Wed11:134.011:373.44:33-0.15:240.16:266:50Waning Gibbous16Wed
17Thu12:063.75:120.16:130.46:276:49Waning Gibbous17Thu
18Fri12:313.11:003.45:530.37:160.76:286:47Third Quarter18Fri
19Sat1:262.91:573.26:400.59:140.86:296:45Third Quarter19Sat
20Sun2:222.72:542.97:380.710:280.86:306:43Third Quarter20Sun
21Mon3:202.63:572.88:540.911:200.86:316:42Third Quarter21Mon
22Tue4:212.55:022.810:160.811:580.76:336:40Waning Crescent22Tue
23Wed5:222.65:572.811:170.76:346:38Waning Crescent23Wed
24Thu6:142.86:412.912:280.612:040.56:356:36Waning Crescent24Thu
25Fri6:562.97:173.012:560.512:460.46:366:35Waning Crescent25Fri
26Sat7:343.17:503.11:250.31:270.26:376:33New Moon26Sat
27Sun8:093.28:223.11:560.22:070.16:386:31New Moon27Sun
28Mon8:423.38:553.12:270.12:470.16:396:30New Moon28Mon
29Tue9:173.49:313.12:580.13:260.16:406:28New Moon29Tue
30Wed9:523.410:093.03:290.14:030.16:416:26Waxing Crescent30Wed
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 2:00 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 14% 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 Waxing Crescent (14% 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