Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 5:51 am (0.2 ft)
Next high tide : in 5h 06m at 11:51 pm (2.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Jun 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:372.44:202.810:150.410:580.55:128:12Waxing Gibbous1Sat
2Sun4:352.55:153.010:580.311:490.35:128:12Waxing Gibbous2Sun
3Mon5:342.66:063.311:390.15:118:13Waxing Gibbous3Mon
4Tue6:292.86:563.612:360.112:22-0.15:118:14Waxing Gibbous4Tue
5Wed7:203.07:443.81:23-0.11:06-0.25:118:14Full Moon5Wed
6Thu8:103.28:334.02:11-0.21:53-0.35:108:15Full Moon6Thu
7Fri9:013.39:244.03:03-0.32:44-0.35:108:16Full Moon7Fri
8Sat9:533.310:174.03:54-0.33:36-0.25:108:16Waning Gibbous8Sat
9Sun10:483.311:123.94:45-0.24:29-0.15:108:17Waning Gibbous9Sun
10Mon11:443.35:35-0.15:240.05:108:17Waning Gibbous10Mon
11Tue12:103.712:433.36:310.16:250.35:108:18Waning Gibbous11Tue
12Wed1:083.51:423.37:390.27:510.45:098:18Third Quarter12Wed
13Thu2:053.32:403.38:540.39:460.55:098:19Third Quarter13Thu
14Fri3:033.13:393.49:530.310:580.55:098:19Third Quarter14Fri
15Sat4:022.94:393.410:370.311:540.45:098:20Waning Crescent15Sat
16Sun5:032.85:383.411:130.35:108:20Waning Crescent16Sun
17Mon6:012.86:313.512:400.411:46 AM0.35:108:20Waning Crescent17Mon
18Tue6:522.87:183.51:190.312:220.35:108:21Waning Crescent18Tue
19Wed7:392.98:023.51:540.31:010.35:108:21New Moon19Wed
20Thu8:232.98:433.42:280.31:420.25:108:21New Moon20Thu
21Fri9:052.99:223.33:040.32:260.25:108:21New Moon21Fri
22Sat9:462.810:013.23:420.33:120.35:118:22New Moon22Sat
23Sun10:272.810:383.04:180.33:570.35:118:22Waxing Crescent23Sun
24Mon11:082.711:162.94:540.34:400.45:118:22Waxing Crescent24Mon
25Tue11:502.611:562.85:290.45:220.55:128:22Waxing Crescent25Tue
26Wed12:332.66:050.46:060.65:128:22Waxing Crescent26Wed
27Thu12:372.61:162.66:430.56:570.75:128:22First Quarter27Thu
28Fri1:202.62:002.77:260.57:570.75:138:22First Quarter28Fri
29Sat2:062.52:452.88:150.59:070.75:138:22First Quarter29Sat
30Sun2:552.53:353.09:080.410:160.65:148:22First Quarter30Sun
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 2:51 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 81% 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 (81% 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