Tides Today & Tomorrow in Plymouth, MA

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Plymouth, MA.
Next low tide : in 5h 40m at 10:52 am (0.3 ft)
Next high tide : 5:00 pm (10.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:25 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8446493
Common Questions About Tides

Plymouth, MA Tides - Apr 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:569.85:580.66:160.85:246:08Full Moon1Tue
2Wed12:119.912:329.76:370.56:550.95:226:09Waning Gibbous2Wed
3Thu12:4710.11:119.77:180.57:351.15:216:10Waning Gibbous3Thu
4Fri1:2610.11:539.58:010.58:181.35:196:11Waning Gibbous4Fri
5Sat2:0910.12:389.38:460.69:031.55:176:12Waning Gibbous5Sat
6Sun2:5410.13:269.29:340.89:511.75:166:13Third Quarter6Sun
7Mon3:4310.04:179.010:250.910:431.85:146:14Third Quarter7Mon
8Tue4:369.95:139.011:200.911:401.75:126:16Third Quarter8Tue
9Wed5:3410.06:139.112:180.85:116:17Third Quarter9Wed
10Thu6:3610.17:139.512:401.51:160.55:096:18Waning Crescent10Thu
11Fri7:3610.48:1010.01:381.02:110.15:076:19Waning Crescent11Fri
12Sat8:3410.89:0510.72:340.33:04-0.35:066:20Waning Crescent12Sat
13Sun9:3011.29:5811.33:29-0.33:56-0.75:046:21New Moon13Sun
14Mon10:2511.510:4911.94:22-1.04:46-1.05:026:22New Moon14Mon
15Tue11:1711.611:3812.35:14-1.55:35-1.15:016:23New Moon15Tue
16Wed12:0711.66:04-1.76:24-1.04:596:24New Moon16Wed
17Thu12:2612.412:5711.36:55-1.77:14-0.74:586:25Waxing Crescent17Thu
18Fri1:1512.21:4810.97:46-1.48:05-0.34:566:27Waxing Crescent18Fri
19Sat2:0711.82:4110.48:39-1.08:580.24:556:28Waxing Crescent19Sat
20Sun3:0011.33:369.99:32-0.59:520.74:536:29First Quarter20Sun
21Mon3:5410.74:329.410:270.110:481.24:526:30First Quarter21Mon
22Tue4:5210.15:339.111:240.611:471.54:506:31First Quarter22Tue
23Wed5:539.66:359.012:220.94:496:32First Quarter23Wed
24Thu6:569.47:349.012:461.61:181.14:476:33Waxing Gibbous24Thu
25Fri7:539.38:259.11:421.62:101.24:466:34Waxing Gibbous25Fri
26Sat8:459.39:109.42:341.42:581.14:446:35Waxing Gibbous26Sat
27Sun10:319.310:519.64:221.24:431.15:437:37Waxing Gibbous27Sun
28Mon11:139.411:299.85:070.95:261.15:427:38Full Moon28Mon
29Tue11:529.55:500.76:061.15:407:39Full Moon29Tue
30Wed12:0510.112:299.66:310.56:461.15:397:40Full Moon30Wed
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 1:56 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 Plymouth, MA?

Plymouth, MA is currently in a neap phase. Tonight's moon is 42% 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 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 First Quarter (42% illuminated). This places Plymouth, 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