Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 8:56 pm (0.6 ft)
Next high tide : in 23m at 2:11 pm (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Oct 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:553.78:173.61:490.12:070.16:416:26Full Moon1Sat
2Sun8:383.88:593.52:150.12:460.16:426:25Full Moon2Sun
3Mon9:203.79:403.32:450.13:240.16:436:23Full Moon3Mon
4Tue10:003.610:213.13:180.14:020.26:446:21Waning Gibbous4Tue
5Wed10:403.411:022.93:540.14:390.36:456:20Waning Gibbous5Wed
6Thu11:203.211:452.74:300.25:170.46:466:18Waning Gibbous6Thu
7Fri12:012.95:080.45:580.66:476:16Waning Gibbous7Fri
8Sat12:312.512:462.75:490.56:460.86:486:15Third Quarter8Sat
9Sun1:192.41:332.66:360.77:580.96:496:13Third Quarter9Sun
10Mon2:082.32:222.57:360.89:420.96:506:11Third Quarter10Mon
11Tue3:002.33:162.58:510.810:450.86:516:10Third Quarter11Tue
12Wed3:552.44:152.610:080.711:270.66:536:08Waning Crescent12Wed
13Thu4:542.65:142.811:100.56:546:06Waning Crescent13Thu
14Fri5:472.96:053.012:010.412:000.36:556:05Waning Crescent14Fri
15Sat6:343.26:513.212:330.212:450.16:566:03Waning Crescent15Sat
16Sun7:183.57:363.41:060.01:29-0.16:576:02New Moon16Sun
17Mon8:023.88:223.51:41-0.22:15-0.26:586:00New Moon17Mon
18Tue8:474.09:093.52:20-0.33:02-0.36:595:59New Moon18Tue
19Wed9:344.19:583.53:01-0.43:50-0.37:005:57Waxing Crescent19Wed
20Thu10:244.010:503.33:44-0.34:38-0.27:025:56Waxing Crescent20Thu
21Fri11:173.911:473.24:30-0.25:270.07:035:54Waxing Crescent21Fri
22Sat12:163.75:170.06:250.37:045:53Waxing Crescent22Sat
23Sun12:473.01:173.56:110.38:070.57:055:51First Quarter23Sun
24Mon1:493.02:203.47:200.59:550.57:065:50First Quarter24Mon
25Tue2:513.03:243.29:300.610:590.47:075:48First Quarter25Tue
26Wed3:563.04:293.211:060.511:460.47:095:47Waxing Gibbous26Wed
27Thu5:013.25:313.212:010.47:105:46Waxing Gibbous27Thu
28Fri5:593.36:243.212:220.312:440.37:115:44Waxing Gibbous28Fri
29Sat6:493.57:113.312:480.21:200.27:125:43Waxing Gibbous29Sat
30Sun7:343.67:543.21:090.21:530.27:135:42Full Moon30Sun
31Mon8:153.68:343.21:350.12:260.17:145:40Full Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447975)

Common Questions About Westport Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Westport Harbor, MA today?

Slack tide in Westport Harbor, MA is approximately 5:33 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Westport Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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