Tides Today & Tomorrow in Plymouth, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Plymouth, MA.
Next low tide (tomorrow) : in 5h 44m at 12:18 am (1.0 ft)
Next high tide (tomorrow) : 6:20 am (8.9 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:25 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8446493
Common Questions About Tides

Plymouth, MA Tides - Jun 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:0311.412:3510.06:29-0.66:420.55:098:12Full Moon1Wed
2Thu12:4611.21:189.97:14-0.47:270.75:088:13Full Moon2Thu
3Fri1:2811.02:009.77:59-0.28:121.05:088:13Waning Gibbous3Fri
4Sat2:1110.72:449.58:440.18:591.35:088:14Waning Gibbous4Sat
5Sun2:5510.43:299.39:300.49:471.55:078:15Waning Gibbous5Sun
6Mon3:4110.14:159.210:170.710:361.75:078:15Waning Gibbous6Mon
7Tue4:299.75:039.111:050.911:271.85:078:16Third Quarter7Tue
8Wed5:199.45:539.111:541.25:078:16Third Quarter8Wed
9Thu6:129.16:459.212:201.912:461.45:068:17Third Quarter9Thu
10Fri7:079.07:389.31:151.81:381.55:068:18Third Quarter10Fri
11Sat8:028.98:289.62:081.62:281.55:068:18Waning Crescent11Sat
12Sun8:549.09:169.93:001.33:171.45:068:19Waning Crescent12Sun
13Mon9:449.110:0310.33:490.94:041.35:068:19Waning Crescent13Mon
14Tue10:339.310:4910.74:370.54:511.15:068:19Waning Crescent14Tue
15Wed11:209.611:3511.25:250.15:370.95:068:20New Moon15Wed
16Thu12:079.96:11-0.36:240.75:068:20New Moon16Thu
17Fri12:2111.512:5310.26:57-0.77:100.45:068:20New Moon17Fri
18Sat1:0711.81:4110.57:44-0.97:590.25:078:21Waxing Crescent18Sat
19Sun1:5611.92:3110.78:34-1.08:510.15:078:21Waxing Crescent19Sun
20Mon2:4811.93:2410.89:25-1.09:450.15:078:21Waxing Crescent20Mon
21Tue3:4311.64:1910.910:18-0.910:420.15:078:21First Quarter21Tue
22Wed4:4011.35:1510.911:12-0.611:400.15:078:22First Quarter22Wed
23Thu5:3810.86:1410.912:08-0.45:088:22First Quarter23Thu
24Fri6:4110.47:1510.912:400.11:06-0.15:088:22First Quarter24Fri
25Sat7:4510.18:1511.01:420.12:040.25:088:22Waxing Gibbous25Sat
26Sun8:479.99:1211.02:410.02:590.35:098:22Waxing Gibbous26Sun
27Mon9:469.710:0611.03:38-0.13:530.55:098:22Waxing Gibbous27Mon
28Tue10:429.610:5711.04:31-0.14:450.75:108:22Full Moon28Tue
29Wed11:339.511:4410.95:22-0.15:340.85:108:22Full Moon29Wed
30Thu12:179.56:09-0.16:200.95:118:22Full Moon30Thu
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 3:19 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 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 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 (52% 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