Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 1:42 am (0.1 ft)
Next high tide : in 4h 29m at 6:52 pm (3.8 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Apr 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:062.45:220.45:220.45:266:09Third Quarter1Sun
2Mon12:302.512:552.26:150.66:180.65:256:10Third Quarter2Mon
3Tue1:202.31:462.27:290.77:320.65:236:11Third Quarter3Tue
4Wed2:122.22:402.28:520.68:570.65:216:12Third Quarter4Wed
5Thu3:092.23:382.39:500.510:050.55:206:13Waning Crescent5Thu
6Fri4:072.34:332.510:330.310:560.35:186:14Waning Crescent6Fri
7Sat4:572.55:192.811:100.211:400.15:166:16Waning Crescent7Sat
8Sun5:402.76:003.011:450.05:156:17Waning Crescent8Sun
9Mon6:212.96:393.312:21-0.112:20-0.25:136:18New Moon9Mon
10Tue7:023.07:203.51:02-0.212:56-0.35:126:19New Moon10Tue
11Wed7:453.18:023.61:44-0.31:35-0.45:106:20New Moon11Wed
12Thu8:303.28:473.62:26-0.42:16-0.45:086:21New Moon12Thu
13Fri9:173.19:363.63:08-0.32:59-0.45:076:22Waxing Crescent13Fri
14Sat10:083.110:283.53:50-0.23:43-0.35:056:23Waxing Crescent14Sat
15Sun11:033.011:253.44:36-0.14:31-0.15:046:24Waxing Crescent15Sun
16Mon12:013.05:290.15:270.15:026:25First Quarter16Mon
17Tue12:253.21:013.06:450.36:360.35:006:26First Quarter17Tue
18Wed1:273.12:023.08:420.38:140.34:596:27First Quarter18Wed
19Thu2:303.03:053.19:480.29:560.34:576:29Waxing Gibbous19Thu
20Fri3:353.04:093.310:360.110:580.14:566:30Waxing Gibbous20Fri
21Sat4:383.15:083.511:140.111:470.04:546:31Waxing Gibbous21Sat
22Sun5:343.16:003.711:450.04:536:32Waxing Gibbous22Sun
23Mon6:243.26:473.812:300.012:160.04:516:33Full Moon23Mon
24Tue7:103.27:323.81:09-0.112:50-0.14:506:34Full Moon24Tue
25Wed7:543.28:153.71:48-0.11:28-0.14:496:35Full Moon25Wed
26Thu8:373.18:573.52:25-0.12:080.04:476:36Full Moon26Thu
27Fri9:202.99:393.33:010.02:480.14:466:37Waning Gibbous27Fri
28Sat10:032.810:223.03:370.13:290.24:446:38Waning Gibbous28Sat
29Sun11:482.65:150.25:110.35:437:39Waning Gibbous29Sun
30Mon12:062.812:342.55:550.45:550.55:427:40Waning Gibbous30Mon
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 10:17 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 spring phase. Tonight's moon is 6% 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 Crescent (6% 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