Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Westport Harbor, MA.
Next low tide : in 4h 19m at 11:17 pm (0.8 ft)
Next high tide (tomorrow) : 4:40 am (2.3 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:30 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - May 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:383.14:123.210:480.211:210.35:417:41Waning Crescent1Mon
2Tue4:433.15:163.311:350.25:397:42Waning Crescent2Tue
3Wed5:443.16:133.512:150.212:100.15:387:43Waning Crescent3Wed
4Thu6:383.27:043.61:000.112:390.15:377:44Waning Crescent4Thu
5Fri7:273.27:503.71:390.11:100.05:367:45New Moon5Fri
6Sat8:123.28:333.72:140.01:450.05:347:46New Moon6Sat
7Sun8:553.29:143.62:490.02:230.05:337:48New Moon7Sun
8Mon9:373.19:543.43:250.03:040.05:327:49New Moon8Mon
9Tue10:193.010:343.24:010.03:450.15:317:50Waxing Crescent9Tue
10Wed11:012.811:133.04:370.14:260.25:307:51Waxing Crescent10Wed
11Thu11:442.711:542.85:140.25:080.35:297:52Waxing Crescent11Thu
12Fri12:292.55:530.45:520.45:287:53Waxing Crescent12Fri
13Sat12:362.61:142.56:370.56:410.65:277:54First Quarter13Sat
14Sun1:202.52:002.57:300.67:400.75:267:55First Quarter14Sun
15Mon2:052.42:462.58:320.68:510.75:257:56First Quarter15Mon
16Tue2:542.43:362.69:320.510:030.65:247:57First Quarter16Tue
17Wed3:482.54:302.810:240.411:030.45:237:58Waxing Gibbous17Wed
18Thu4:482.65:263.111:100.211:540.25:227:59Waxing Gibbous18Thu
19Fri5:472.86:183.411:530.05:218:00Waxing Gibbous19Fri
20Sat6:413.07:083.712:420.012:36-0.25:208:01Waxing Gibbous20Sat
21Sun7:323.27:563.91:29-0.21:21-0.35:198:02Full Moon21Sun
22Mon8:223.48:454.12:17-0.32:08-0.45:188:03Full Moon22Mon
23Tue9:133.59:364.13:08-0.42:58-0.45:188:03Full Moon23Tue
24Wed10:053.510:284.13:58-0.43:49-0.35:178:04Waning Gibbous24Wed
25Thu10:593.511:233.94:48-0.34:41-0.25:168:05Waning Gibbous25Thu
26Fri11:553.55:37-0.25:340.05:168:06Waning Gibbous26Fri
27Sat12:213.712:543.46:320.06:350.25:158:07Third Quarter27Sat
28Sun1:193.51:533.47:420.28:040.45:148:08Third Quarter28Sun
29Mon2:173.32:513.49:080.310:040.55:148:09Third Quarter29Mon
30Tue3:163.13:513.410:110.311:120.45:138:09Third Quarter30Tue
31Wed4:173.04:533.410:570.35:138:10Waning Crescent31Wed
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 1:58 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Gibbous (71% illuminated). This places Westport Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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