Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide : 8:56 pm (0.6 ft)
Next high tide : in 6h 02m at 2:11 pm (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - May 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:532.52:362.38:290.78:240.65:417:41First Quarter1Sun
2Mon2:482.53:312.59:460.69:430.55:397:42First Quarter2Mon
3Tue3:482.64:302.710:400.410:520.35:387:44Waxing Gibbous3Tue
4Wed4:512.75:293.111:240.211:500.15:377:45Waxing Gibbous4Wed
5Thu5:523.06:233.512:06-0.15:357:46Waxing Gibbous5Thu
6Fri6:463.27:143.812:42-0.212:47-0.35:347:47Waxing Gibbous6Fri
7Sat7:383.48:034.11:32-0.41:31-0.45:337:48Full Moon7Sat
8Sun8:283.58:534.22:24-0.52:16-0.55:327:49Full Moon8Sun
9Mon9:193.59:434.23:17-0.53:05-0.55:317:50Full Moon9Mon
10Tue10:113.410:364.14:09-0.43:54-0.45:307:51Waning Gibbous10Tue
11Wed11:063.311:323.95:00-0.34:44-0.25:297:52Waning Gibbous11Wed
12Thu12:043.25:530.05:360.15:287:53Waning Gibbous12Thu
13Fri12:313.61:033.17:000.26:360.35:267:54Third Quarter13Fri
14Sat1:323.32:033.08:410.48:100.65:257:55Third Quarter14Sat
15Sun2:323.13:033.09:550.410:180.65:247:56Third Quarter15Sun
16Mon3:322.94:053.010:490.411:210.55:247:57Third Quarter16Mon
17Tue4:332.85:063.111:280.45:237:58Waning Crescent17Tue
18Wed5:322.86:003.212:070.511:53 AM0.45:227:59Waning Crescent18Wed
19Thu6:232.86:473.312:430.412:150.35:218:00Waning Crescent19Thu
20Fri7:072.87:293.31:130.312:420.25:208:01Waning Crescent20Fri
21Sat7:482.88:063.41:450.21:150.25:198:02New Moon21Sat
22Sun8:272.88:423.32:200.21:530.15:188:03New Moon22Sun
23Mon9:042.89:163.22:580.12:320.15:188:04New Moon23Mon
24Tue9:422.79:503.13:370.13:130.25:178:05New Moon24Tue
25Wed10:202.610:253.04:140.23:530.25:168:06Waxing Crescent25Wed
26Thu11:002.611:042.94:500.34:330.35:168:06Waxing Crescent26Thu
27Fri11:432.511:472.85:250.45:120.45:158:07Waxing Crescent27Fri
28Sat12:292.56:020.45:550.55:148:08Waxing Crescent28Sat
29Sun12:352.71:182.56:440.56:460.65:148:09First Quarter29Sun
30Mon1:262.72:082.67:380.57:510.65:138:10First Quarter30Mon
31Tue2:182.73:002.88:400.49:070.55:138:10First Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447975)

Common Questions About Westport Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Westport Harbor, MA today?

Slack tide in Westport Harbor, MA is approximately 5:33 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 neap phase. Tonight's moon is 48% 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 (48% 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