Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 7:29 am (0.7 ft)
Next high tide (tomorrow) : in 6h 03m at 2:09 am (2.4 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Apr 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:432.510:522.64:200.14:180.15:276:09Waxing Crescent1Tue
2Wed11:262.311:352.54:570.34:570.25:256:10Waxing Crescent2Wed
3Thu12:132.35:390.45:420.35:246:11First Quarter3Thu
4Fri12:242.51:042.36:340.56:400.45:226:12First Quarter4Fri
5Sat1:172.51:582.47:490.57:520.45:206:13First Quarter5Sat
6Sun2:162.52:582.59:080.49:070.35:196:14First Quarter6Sun
7Mon3:212.74:012.810:070.210:140.05:176:15Waxing Gibbous7Mon
8Tue4:262.95:003.210:540.011:11-0.25:156:16Waxing Gibbous8Tue
9Wed5:243.25:533.611:38-0.35:146:17Waxing Gibbous9Wed
10Thu6:173.46:443.912:04-0.412:21-0.55:126:18Full Moon10Thu
11Fri7:083.67:334.112:56-0.61:06-0.65:106:19Full Moon11Fri
12Sat7:583.78:244.21:49-0.71:53-0.65:096:21Full Moon12Sat
13Sun8:493.79:154.22:41-0.72:40-0.65:076:22Waning Gibbous13Sun
14Mon9:413.610:084.03:31-0.53:27-0.45:066:23Waning Gibbous14Mon
15Tue10:363.411:043.74:20-0.34:14-0.25:046:24Waning Gibbous15Tue
16Wed11:343.25:13-0.15:050.15:036:25Waning Gibbous16Wed
17Thu12:033.512:333.06:240.26:060.35:016:26Third Quarter17Thu
18Fri1:023.21:322.98:180.48:040.54:596:27Third Quarter18Fri
19Sat2:033.02:332.99:290.49:490.54:586:28Third Quarter19Sat
20Sun3:052.83:362.910:200.410:430.54:566:29Waning Crescent20Sun
21Mon4:082.84:363.010:550.411:220.44:556:30Waning Crescent21Mon
22Tue5:042.85:273.111:190.311:520.34:536:31Waning Crescent22Tue
23Wed5:512.96:113.211:410.24:526:32Waning Crescent23Wed
24Thu6:322.96:513.312:220.212:100.14:516:34New Moon24Thu
25Fri7:102.97:273.312:560.112:440.04:496:35New Moon25Fri
26Sat7:472.98:013.21:330.01:210.04:486:36New Moon26Sat
27Sun9:222.99:343.23:120.02:590.05:467:37New Moon27Sun
28Mon9:582.810:073.13:490.03:370.05:457:38Waxing Crescent28Mon
29Tue10:362.710:432.94:250.04:140.15:437:39Waxing Crescent29Tue
30Wed11:162.611:222.84:590.14:510.25:427:40Waxing Crescent30Wed
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 4:49 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 neap phase. Tonight's moon is 46% 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 (46% 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