Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 7:19 pm (0.5 ft)
Next high tide : in 4h 40m at 1:16 pm (3.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - May 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:002.67:193.112:480.212:500.15:417:41Waxing Gibbous1Fri
2Sat7:362.77:543.21:280.11:260.05:397:42Full Moon2Sat
3Sun8:122.88:303.32:090.02:020.05:387:43Full Moon3Sun
4Mon8:502.99:063.42:49-0.12:39-0.15:377:44Full Moon4Mon
5Tue9:292.99:453.43:28-0.13:16-0.15:367:45Full Moon5Tue
6Wed10:122.910:283.34:04-0.13:550.05:347:47Waning Gibbous6Wed
7Thu10:582.911:153.34:41-0.14:350.05:337:48Waning Gibbous7Thu
8Fri11:482.85:200.05:180.15:327:49Waning Gibbous8Fri
9Sat12:073.212:422.96:040.16:080.25:317:50Waning Gibbous9Sat
10Sun1:033.11:382.96:570.27:090.35:307:51Third Quarter10Sun
11Mon2:003.12:353.08:030.28:280.45:297:52Third Quarter11Mon
12Tue3:003.13:353.29:170.210:010.35:287:53Third Quarter12Tue
13Wed4:033.14:393.410:230.111:200.15:277:54Waning Crescent13Wed
14Thu5:083.25:413.711:180.05:267:55Waning Crescent14Thu
15Fri6:093.36:383.912:200.012:06-0.25:257:56Waning Crescent15Fri
16Sat7:043.47:314.11:12-0.212:52-0.25:247:57New Moon16Sat
17Sun7:563.58:214.12:03-0.21:37-0.35:237:58New Moon17Sun
18Mon8:463.69:104.12:54-0.22:23-0.25:227:59New Moon18Mon
19Tue9:353.59:583.93:41-0.23:10-0.25:218:00New Moon19Tue
20Wed10:243.410:463.64:23-0.13:560.05:208:01Waxing Crescent20Wed
21Thu11:143.211:363.45:000.14:410.15:198:02Waxing Crescent21Thu
22Fri12:053.05:370.25:260.35:188:03Waxing Crescent22Fri
23Sat12:263.112:572.96:180.46:140.55:188:04Waxing Crescent23Sat
24Sun1:162.81:482.87:070.57:110.75:178:04First Quarter24Sun
25Mon2:042.62:382.78:060.68:210.85:168:05First Quarter25Mon
26Tue2:522.53:272.79:080.69:390.75:168:06First Quarter26Tue
27Wed3:412.44:192.710:010.510:430.65:158:07First Quarter27Wed
28Thu4:342.35:112.810:470.411:340.55:148:08Waxing Gibbous28Thu
29Fri5:272.45:582.911:290.35:148:09Waxing Gibbous29Fri
30Sat6:152.56:403.112:190.312:090.25:138:10Waxing Gibbous30Sat
31Sun6:582.77:203.31:010.212:480.15:138:10Waxing Gibbous31Sun
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 4:17 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 transitional phase. Tonight's moon is 37% 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 shifting between spring and neap.

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 (37% illuminated). This places Westport Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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