Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 4:59 pm (0.0 ft)
Next high tide : in 4h 01m at 11:01 am (3.7 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Mar 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:042.85:260.05:32-0.26:185:34First Quarter1Mon
2Tue12:313.11:022.66:310.26:290.06:175:35First Quarter2Tue
3Wed1:303.02:032.68:220.37:410.16:155:36First Quarter3Wed
4Thu2:363.03:102.610:080.29:040.16:145:38Waxing Gibbous4Thu
5Fri3:473.14:192.811:100.110:240.06:125:39Waxing Gibbous5Fri
6Sat4:553.25:213.012:000.06:115:40Waxing Gibbous6Sat
7Sun5:533.46:153.312:44-0.16:095:41Waxing Gibbous7Sun
8Mon6:443.57:043.412:20-0.31:22-0.26:075:42Full Moon8Mon
9Tue7:303.57:513.61:09-0.41:55-0.36:065:43Full Moon9Tue
10Wed8:153.58:353.51:54-0.42:24-0.36:045:44Full Moon10Wed
11Thu8:573.39:193.42:36-0.42:53-0.36:025:46Waning Gibbous11Thu
12Fri9:393.110:023.33:15-0.33:24-0.26:015:47Waning Gibbous12Fri
13Sat10:222.810:453.03:52-0.13:56-0.15:595:48Waning Gibbous13Sat
14Sun11:052.611:292.84:300.04:320.15:575:49Waning Gibbous14Sun
15Mon11:502.35:120.25:110.25:565:50Third Quarter15Mon
16Tue12:142.612:362.26:000.45:580.45:545:51Third Quarter16Tue
17Wed1:002.41:242.07:030.66:570.55:525:52Third Quarter17Wed
18Thu1:502.32:162.08:300.68:120.65:515:53Third Quarter18Thu
19Fri2:482.23:172.09:480.69:290.55:495:55Third Quarter19Fri
20Sat3:532.34:192.210:400.410:310.35:475:56Waning Crescent20Sat
21Sun4:502.55:112.411:220.211:200.15:465:57Waning Crescent21Sun
22Mon5:362.75:552.711:580.05:445:58Waning Crescent22Mon
23Tue6:172.96:373.012:04-0.112:34-0.25:425:59New Moon23Tue
24Wed6:583.27:183.312:48-0.31:09-0.35:406:00New Moon24Wed
25Thu7:403.38:013.51:31-0.41:45-0.45:396:01New Moon25Thu
26Fri8:243.48:453.62:15-0.52:22-0.55:376:02New Moon26Fri
27Sat9:103.39:313.62:58-0.53:01-0.55:356:03Waxing Crescent27Sat
28Sun9:593.210:223.63:42-0.43:41-0.45:346:04Waxing Crescent28Sun
29Mon10:533.111:163.44:27-0.24:25-0.35:326:05Waxing Crescent29Mon
30Tue11:502.95:180.05:14-0.15:306:07First Quarter30Tue
31Wed12:153.312:492.86:270.26:130.15:296:08First Quarter31Wed
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 2:00 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 14% 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 Waxing Crescent (14% 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