Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Westport Harbor, MA.
Next low tide (tomorrow) : in 5h 58m at 5:51 am (0.2 ft)
Next high tide (tomorrow) : 12:23 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 - Sep 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:213.38:393.32:060.32:010.26:107:17New Moon1Mon
2Tue8:583.39:133.22:370.22:430.26:117:16New Moon2Tue
3Wed9:333.39:463.13:110.23:240.16:127:14New Moon3Wed
4Thu10:083.210:203.03:440.14:040.26:137:12Waxing Crescent4Thu
5Fri10:433.110:562.94:160.24:410.36:147:11Waxing Crescent5Fri
6Sat11:203.011:362.74:480.25:180.46:157:09Waxing Crescent6Sat
7Sun12:012.95:210.35:560.56:167:07Waxing Crescent7Sun
8Mon12:212.612:472.95:580.46:410.66:177:06First Quarter8Mon
9Tue1:112.61:382.96:430.57:400.76:187:04First Quarter9Tue
10Wed2:042.62:323.07:410.58:580.76:197:02First Quarter10Wed
11Thu3:012.63:323.18:530.510:190.56:207:00First Quarter11Thu
12Fri4:042.84:383.310:080.411:210.36:216:59Waxing Gibbous12Fri
13Sat5:103.15:423.511:160.16:226:57Waxing Gibbous13Sat
14Sun6:113.46:393.812:100.112:16-0.16:236:55Waxing Gibbous14Sun
15Mon7:063.87:324.012:56-0.21:11-0.36:246:54Full Moon15Mon
16Tue7:584.18:234.11:41-0.32:05-0.46:256:52Full Moon16Tue
17Wed8:494.39:144.12:27-0.43:00-0.46:266:50Full Moon17Wed
18Thu9:394.310:044.03:13-0.53:54-0.36:276:48Waning Gibbous18Thu
19Fri10:314.310:563.83:58-0.44:45-0.26:286:47Waning Gibbous19Fri
20Sat11:244.111:513.54:41-0.25:360.16:306:45Waning Gibbous20Sat
21Sun12:203.85:250.06:330.46:316:43Waning Gibbous21Sun
22Mon12:473.31:183.56:130.38:190.66:326:41Third Quarter22Mon
23Tue1:453.12:173.37:080.59:510.76:336:40Third Quarter23Tue
24Wed2:432.93:173.18:220.710:530.76:346:38Third Quarter24Wed
25Thu3:432.84:203.010:050.811:390.76:356:36Waning Crescent25Thu
26Fri4:452.85:212.911:080.76:366:35Waning Crescent26Fri
27Sat5:432.96:133.012:130.611:49 AM0.66:376:33Waning Crescent27Sat
28Sun6:323.16:563.012:370.512:260.56:386:31Waning Crescent28Sun
29Mon7:143.27:343.11:010.41:030.36:396:29New Moon29Mon
30Tue7:523.38:083.11:290.31:420.26:406:28New Moon30Tue
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 9:07 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