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 : 5:23 pm (0.4 ft)
Next high tide : in 3h 16m at 11:39 am (2.8 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 - Sep 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:073.410:233.33:500.04:080.06:117:17Waxing Crescent1Sat
2Sun10:513.511:093.24:23-0.14:490.16:127:15Waxing Crescent2Sun
3Mon11:393.54:580.05:330.26:137:13Waxing Crescent3Mon
4Tue12:013.112:313.55:380.16:230.36:147:12First Quarter4Tue
5Wed12:563.01:273.46:250.27:270.56:157:10First Quarter5Wed
6Thu1:542.92:263.47:220.39:050.66:167:08First Quarter6Thu
7Fri2:552.83:303.48:340.410:500.56:177:06First Quarter7Fri
8Sat4:002.94:383.59:570.411:520.46:187:05Waxing Gibbous8Sat
9Sun5:093.05:453.611:170.36:197:03Waxing Gibbous9Sun
10Mon6:123.36:433.812:410.312:200.16:207:01Waxing Gibbous10Mon
11Tue7:073.57:353.91:230.11:140.06:217:00Full Moon11Tue
12Wed7:573.78:223.92:010.02:040.06:226:58Full Moon12Wed
13Thu8:443.99:083.82:360.02:520.06:236:56Full Moon13Thu
14Fri9:303.99:523.63:100.03:360.06:246:54Full Moon14Fri
15Sat10:153.810:363.43:420.04:170.16:256:53Waning Gibbous15Sat
16Sun11:003.611:213.14:160.14:560.36:266:51Waning Gibbous16Sun
17Mon11:453.34:510.25:350.46:276:49Waning Gibbous17Mon
18Tue12:072.912:313.15:290.46:190.66:286:48Waning Gibbous18Tue
19Wed12:562.61:192.96:100.57:140.86:296:46Third Quarter19Wed
20Thu1:452.52:072.76:590.78:390.96:306:44Third Quarter20Thu
21Fri2:352.42:582.68:010.810:120.96:316:42Third Quarter21Fri
22Sat3:282.33:552.59:160.811:080.86:326:41Third Quarter22Sat
23Sun4:272.44:572.610:280.711:510.66:336:39Waning Crescent23Sun
24Mon5:242.55:492.811:260.66:346:37Waning Crescent24Mon
25Tue6:132.86:323.012:270.512:140.46:356:35Waning Crescent25Tue
26Wed6:553.07:123.21:000.312:580.26:366:34Waning Crescent26Wed
27Thu7:353.37:513.31:320.11:400.06:376:32New Moon27Thu
28Fri8:163.58:323.42:050.02:23-0.16:386:30New Moon28Fri
29Sat8:573.79:153.52:39-0.13:06-0.16:396:29New Moon29Sat
30Sun9:403.810:013.43:15-0.23:50-0.16:406:27Waxing Crescent30Sun
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 2:31 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