Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 8:22 am (0.6 ft)
Next high tide (tomorrow) : in 3h 29m at 2:45 am (2.5 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:28 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - Apr 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:063.38:283.62:01-0.42:10-0.46:267:09New Moon1Sat
2Sun8:513.49:123.82:47-0.52:48-0.56:247:10New Moon2Sun
3Mon9:383.39:593.83:34-0.53:29-0.66:237:11New Moon3Mon
4Tue10:273.210:483.84:20-0.54:10-0.56:217:12Waxing Crescent4Tue
5Wed11:193.111:423.65:06-0.34:54-0.36:197:14Waxing Crescent5Wed
6Thu12:162.95:55-0.15:42-0.16:187:15Waxing Crescent6Thu
7Fri12:413.41:162.86:590.26:370.26:167:16First Quarter7Fri
8Sat1:443.22:182.79:120.47:500.46:147:17First Quarter8Sat
9Sun2:493.03:222.710:350.49:560.56:137:18First Quarter9Sun
10Mon3:582.94:292.811:340.311:280.46:117:19Waxing Gibbous10Mon
11Tue5:062.95:333.012:190.26:107:20Waxing Gibbous11Tue
12Wed6:063.06:283.212:210.212:550.26:087:21Waxing Gibbous12Wed
13Thu6:563.07:153.41:020.11:200.16:067:22Waxing Gibbous13Thu
14Fri7:393.17:583.51:380.11:410.16:057:23Full Moon14Fri
15Sat8:193.08:383.52:110.02:050.06:037:24Full Moon15Sat
16Sun8:583.09:153.52:46-0.12:350.06:027:26Full Moon16Sun
17Mon9:352.99:513.33:22-0.13:100.06:007:27Full Moon17Mon
18Tue10:122.710:273.13:580.03:460.15:597:28Waning Gibbous18Tue
19Wed10:502.511:032.94:340.14:220.25:577:29Waning Gibbous19Wed
20Thu11:302.411:422.75:100.25:000.35:567:30Waning Gibbous20Thu
21Fri12:132.25:480.45:390.45:547:31Waning Gibbous21Fri
22Sat12:262.51:002.26:310.56:250.65:537:32Third Quarter22Sat
23Sun1:152.41:492.17:280.77:230.75:517:33Third Quarter23Sun
24Mon2:072.42:412.28:470.78:410.75:507:34Third Quarter24Mon
25Tue3:012.43:372.310:010.610:040.65:487:35Third Quarter25Tue
26Wed4:012.54:372.610:510.411:100.45:477:36Waning Crescent26Wed
27Thu5:032.75:352.911:320.25:467:37Waning Crescent27Thu
28Fri5:592.96:263.312:030.112:10-0.15:447:39Waning Crescent28Fri
29Sat6:513.17:153.712:51-0.112:49-0.35:437:40Waning Crescent29Sat
30Sun7:403.28:023.91:39-0.31:31-0.45:417:41New Moon30Sun
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 5:33 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 52% 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 (52% 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