Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 4:17 am (0.1 ft)
Next high tide : in 4h 59m at 10:01 pm (3.2 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:38 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Sep 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:543.211:123.04:160.24:430.36:117:17Waning Gibbous1Sat
2Sun11:333.011:522.84:510.25:230.46:127:15Waning Gibbous2Sun
3Mon12:132.95:270.36:040.66:137:14Waning Gibbous3Mon
4Tue12:342.612:542.86:060.46:520.76:147:12Third Quarter4Tue
5Wed1:192.51:372.76:510.67:540.86:157:10Third Quarter5Wed
6Thu2:052.42:232.77:450.69:200.96:167:09Third Quarter6Thu
7Fri2:562.43:162.78:500.710:350.76:177:07Third Quarter7Fri
8Sat3:532.54:172.89:580.611:270.66:187:05Waning Crescent8Sat
9Sun4:542.65:193.011:000.46:197:03Waning Crescent9Sun
10Mon5:532.96:163.312:090.411:55 AM0.26:207:02Waning Crescent10Mon
11Tue6:453.37:063.612:480.112:45-0.16:217:00Waning Crescent11Tue
12Wed7:343.67:553.81:27-0.11:34-0.26:226:58New Moon12Wed
13Thu8:223.98:433.92:08-0.32:24-0.36:236:57New Moon13Thu
14Fri9:104.19:323.92:50-0.43:16-0.46:246:55New Moon14Fri
15Sat10:004.210:223.83:34-0.44:06-0.36:256:53Waxing Crescent15Sat
16Sun10:524.111:163.74:17-0.34:56-0.26:266:51Waxing Crescent16Sun
17Mon11:464.05:01-0.25:480.16:276:50Waxing Crescent17Mon
18Tue12:123.412:443.85:480.06:510.36:286:48First Quarter18Tue
19Wed1:113.31:443.66:420.38:480.56:296:46First Quarter19Wed
20Thu2:113.12:453.57:510.510:190.66:306:45First Quarter20Thu
21Fri3:123.03:483.39:500.611:210.56:316:43First Quarter21Fri
22Sat4:173.04:543.311:150.66:326:41Waxing Gibbous22Sat
23Sun5:213.15:543.312:090.512:050.56:336:39Waxing Gibbous23Sun
24Mon6:183.26:453.412:450.412:420.46:346:38Waxing Gibbous24Mon
25Tue7:063.47:303.41:110.41:140.36:356:36Full Moon25Tue
26Wed7:493.58:103.41:320.31:470.36:366:34Full Moon26Wed
27Thu8:293.58:483.31:580.22:230.26:376:32Full Moon27Thu
28Fri9:073.59:253.22:300.13:020.26:386:31Full Moon28Fri
29Sat9:433.410:013.13:050.13:410.26:396:29Full Moon29Sat
30Sun10:173.210:382.93:410.14:190.26:406:27Waning Gibbous30Sun
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 1:09 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 96% 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 (96% 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