Tides Today & Tomorrow in Plymouth, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Plymouth, MA.
Next low tide : in 4h 15m at 9:40 pm (1.7 ft)
Next high tide (tomorrow) : 3:32 am (10.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8446493
Common Questions About Tides

Plymouth, MA Tides - Aug 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:3410.83:0310.29:090.19:290.75:358:01Waning Gibbous1Sun
2Mon3:2110.73:5110.49:550.110:190.55:368:00Waning Gibbous2Mon
3Tue4:1210.54:4110.610:440.211:120.45:377:59Third Quarter3Tue
4Wed5:0610.25:3410.711:350.45:397:58Third Quarter4Wed
5Thu6:039.96:3110.912:090.412:310.65:407:57Third Quarter5Thu
6Fri7:049.77:3211.01:090.21:290.65:417:56Waning Crescent6Fri
7Sat8:089.78:3211.22:100.02:280.65:427:54Waning Crescent7Sat
8Sun9:099.79:3211.43:08-0.33:250.45:437:53Waning Crescent8Sun
9Mon10:099.910:2911.64:05-0.54:210.25:447:52Waning Crescent9Mon
10Tue11:0610.211:2411.75:00-0.85:160.05:457:50New Moon10Tue
11Wed11:5910.45:53-0.96:08-0.15:467:49New Moon11Wed
12Thu12:1611.712:4710.56:42-0.96:58-0.25:477:48New Moon12Thu
13Fri1:0411.51:3310.67:29-0.87:46-0.15:487:46Waxing Crescent13Fri
14Sat1:5011.22:1710.58:15-0.58:340.15:497:45Waxing Crescent14Sat
15Sun2:3510.83:0210.39:01-0.19:230.45:507:43Waxing Crescent15Sun
16Mon3:2210.33:4810.19:470.310:120.75:517:42Waxing Crescent16Mon
17Tue4:109.84:359.910:340.811:021.05:527:41First Quarter17Tue
18Wed4:589.35:239.711:231.211:541.35:537:39First Quarter18Wed
19Thu5:508.96:149.412:141.65:547:38First Quarter19Thu
20Fri6:458.57:099.312:491.51:081.95:557:36First Quarter20Fri
21Sat7:438.48:059.31:451.52:022.05:567:35Waxing Gibbous21Sat
22Sun8:398.48:589.52:391.42:551.95:577:33Waxing Gibbous22Sun
23Mon9:318.59:479.73:301.23:451.85:587:31Waxing Gibbous23Mon
24Tue10:208.710:3410.04:191.04:331.55:597:30Waxing Gibbous24Tue
25Wed11:059.111:1910.35:060.75:191.26:007:28Full Moon25Wed
26Thu11:479.55:500.46:040.96:017:27Full Moon26Thu
27Fri12:0110.612:289.96:320.16:470.56:027:25Full Moon27Fri
28Sat12:4310.91:0810.37:14-0.17:310.26:037:23Full Moon28Sat
29Sun1:2611.01:5110.77:56-0.28:160.06:047:22Waning Gibbous29Sun
30Mon2:1111.02:3611.08:40-0.29:05-0.26:057:20Waning Gibbous30Mon
31Tue2:5910.93:2411.19:28-0.19:56-0.26:067:19Waning Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8446493)

Common Questions About Plymouth, MA Tides

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What time does the tide turn (slack tide) in Plymouth, MA today?

Slack tide in Plymouth, MA is approximately 12:36 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 Plymouth, MA?

Plymouth, 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 Plymouth, 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 Plymouth, MA?

Tide predictions for Plymouth, 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 Plymouth, MA?

Tide data for Plymouth, MA is sourced from NOAA Station #8446493. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8446493.

What is the moon phase in Plymouth, MA tonight?

Tonight the moon over Plymouth, MA is Waning Gibbous (81% illuminated). This places Plymouth, 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