Tides Today & Tomorrow in Plymouth, MA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Plymouth, MA.
Next low tide : in 3h 32m at 9:13 am (-0.6 ft)
Next high tide : 3:19 pm (10.6 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:23 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8446493
Common Questions About Tides

Plymouth, MA Tides - Jul 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:3112.33:0611.29:03-1.59:25-0.55:118:22Waxing Crescent1Wed
2Thu3:2611.94:0111.29:57-1.210:22-0.35:118:21First Quarter2Thu
3Fri4:2311.34:5711.010:50-0.811:19-0.15:128:21First Quarter3Fri
4Sat5:2010.75:5410.811:45-0.35:138:21First Quarter4Sat
5Sun6:2110.16:5410.612:170.212:410.25:138:21First Quarter5Sun
6Mon7:249.67:5410.41:180.41:380.65:148:20Waxing Gibbous6Mon
7Tue8:269.38:5010.32:170.62:330.95:148:20Waxing Gibbous7Tue
8Wed9:249.19:4210.33:120.63:261.15:158:20Waxing Gibbous8Wed
9Thu10:179.010:3010.24:040.64:161.35:168:19Waxing Gibbous9Thu
10Fri11:048.911:1310.24:530.65:031.45:178:19Full Moon10Fri
11Sat11:468.911:5310.25:380.65:481.45:178:18Full Moon11Sat
12Sun12:239.06:200.56:301.45:188:18Full Moon12Sun
13Mon12:3110.212:599.17:000.57:121.45:198:17Full Moon13Mon
14Tue1:0810.21:369.27:410.57:541.35:208:17Waning Gibbous14Tue
15Wed1:4710.22:159.48:220.58:371.45:208:16Waning Gibbous15Wed
16Thu2:2810.12:579.59:040.69:221.45:218:15Waning Gibbous16Thu
17Fri3:1210.03:419.69:470.710:081.45:228:15Waning Gibbous17Fri
18Sat3:589.84:269.710:320.910:571.45:238:14Third Quarter18Sat
19Sun4:469.65:149.811:191.111:481.35:248:13Third Quarter19Sun
20Mon5:379.46:0510.012:091.25:258:13Third Quarter20Mon
21Tue6:329.36:5910.212:431.21:021.35:268:12Third Quarter21Tue
22Wed7:309.27:5510.51:390.91:571.25:278:11Waning Crescent22Wed
23Thu8:289.48:5111.02:350.52:510.95:288:10Waning Crescent23Thu
24Fri9:259.79:4711.43:300.03:460.65:288:09Waning Crescent24Fri
25Sat10:2210.010:4211.94:24-0.54:400.25:298:08New Moon25Sat
26Sun11:1710.511:3712.25:18-1.05:34-0.35:308:07New Moon26Sun
27Mon12:1010.96:09-1.46:26-0.75:318:06New Moon27Mon
28Tue12:2912.41:0111.37:00-1.67:18-0.95:328:05Waxing Crescent28Tue
29Wed1:2112.41:5211.57:50-1.68:11-0.95:338:04Waxing Crescent29Wed
30Thu2:1312.12:4411.58:41-1.49:04-0.85:348:03Waxing Crescent30Thu
31Fri3:0611.73:3611.49:32-1.09:59-0.55:358:02Waxing Crescent31Fri
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 12:16 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 transitional phase. Tonight's moon is 23% 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 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 Waxing Crescent (23% illuminated). This places Plymouth, 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