Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Westport Harbor, MA.
Next low tide : in 3h 16m at 5:23 pm (0.4 ft)
Next high tide : 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 - May 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:253.512:563.16:420.26:180.35:417:41First Quarter1Fri
2Sat1:233.21:532.98:140.47:190.65:397:42First Quarter2Sat
3Sun2:202.92:502.89:380.58:490.75:387:43First Quarter3Sun
4Mon3:172.73:482.810:320.510:280.75:377:45First Quarter4Mon
5Tue4:172.64:472.811:110.511:190.65:367:46Waxing Gibbous5Tue
6Wed5:162.65:422.911:380.511:580.55:347:47Waxing Gibbous6Wed
7Thu6:072.66:293.012:050.45:337:48Waxing Gibbous7Thu
8Fri6:502.77:093.112:350.312:360.25:327:49Waxing Gibbous8Fri
9Sat7:282.77:463.21:130.21:100.15:317:50Full Moon9Sat
10Sun8:042.88:203.31:520.11:450.15:307:51Full Moon10Sun
11Mon8:392.88:543.32:330.02:230.05:297:52Full Moon11Mon
12Tue9:152.89:293.33:120.03:000.05:287:53Full Moon12Tue
13Wed9:532.810:073.23:500.03:370.15:267:54Waning Gibbous13Wed
14Thu10:342.710:483.14:260.04:150.15:257:55Waning Gibbous14Thu
15Fri11:192.711:343.15:010.14:540.25:247:56Waning Gibbous15Fri
16Sat12:092.75:380.25:370.35:247:57Waning Gibbous16Sat
17Sun12:263.01:012.76:220.26:280.45:237:58Third Quarter17Sun
18Mon1:203.01:562.87:160.37:320.45:227:59Third Quarter18Mon
19Tue2:173.02:523.08:220.38:510.45:218:00Third Quarter19Tue
20Wed3:163.03:523.29:310.210:170.35:208:01Third Quarter20Wed
21Thu4:193.14:553.410:330.011:280.15:198:02Waning Crescent21Thu
22Fri5:243.25:563.711:27-0.15:188:03Waning Crescent22Fri
23Sat6:243.46:524.012:27-0.112:16-0.35:188:04Waning Crescent23Sat
24Sun7:193.57:454.21:22-0.21:04-0.45:178:04New Moon24Sun
25Mon8:123.68:364.32:16-0.31:53-0.45:168:05New Moon25Mon
26Tue9:033.69:274.23:10-0.32:42-0.35:168:06New Moon26Tue
27Wed9:543.610:174.04:01-0.23:32-0.25:158:07Waxing Crescent27Wed
28Thu10:463.511:093.74:47-0.14:200.05:148:08Waxing Crescent28Thu
29Fri11:393.35:290.15:070.25:148:09Waxing Crescent29Fri
30Sat12:023.412:333.16:110.35:550.45:138:10Waxing Crescent30Sat
31Sun12:553.11:273.07:000.46:500.65:138:10First Quarter31Sun
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 8:37 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 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