Tides Today & Tomorrow in Plum Island Sound, South End, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 43m at 4:06 pm (1.7 ft)
Next high tide : 10:17 pm (8.9 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Nov 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:558.31:049.56:591.27:350.26:164:36Waning Gibbous1Tue
2Wed1:398.31:499.57:401.38:210.26:184:35Waning Gibbous2Wed
3Thu2:258.22:379.58:261.39:110.36:194:34Waning Gibbous3Thu
4Fri3:168.13:309.49:191.410:060.36:204:32Third Quarter4Fri
5Sat4:118.14:289.310:171.411:040.36:214:31Third Quarter5Sat
6Sun5:118.25:309.311:211.26:234:30Third Quarter6Sun
7Mon6:118.56:339.312:040.312:260.96:244:29Waning Crescent7Mon
8Tue7:119.07:359.41:020.11:290.46:254:28Waning Crescent8Tue
9Wed8:079.58:349.51:580.02:28-0.16:274:27Waning Crescent9Wed
10Thu9:0110.19:319.62:52-0.23:25-0.66:284:25Waning Crescent10Thu
11Fri9:5310.510:259.63:44-0.34:19-1.06:294:24New Moon11Fri
12Sat10:4210.811:169.54:33-0.35:10-1.26:304:23New Moon12Sat
13Sun11:3010.95:22-0.26:00-1.26:324:22New Moon13Sun
14Mon12:059.312:1710.76:090.06:48-1.16:334:21Waxing Crescent14Mon
15Tue12:539.01:0510.46:570.37:37-0.76:344:20Waxing Crescent15Tue
16Wed1:428.71:5410.07:460.68:27-0.36:354:20Waxing Crescent16Wed
17Thu2:328.42:449.68:370.99:180.16:374:19Waxing Crescent17Thu
18Fri3:238.23:369.19:301.210:100.56:384:18First Quarter18Fri
19Sat4:167.94:308.710:251.511:030.86:394:17First Quarter19Sat
20Sun5:107.85:278.411:221.611:571.06:404:16First Quarter20Sun
21Mon6:067.96:248.212:201.66:424:16First Quarter21Mon
22Tue6:598.07:198.112:501.11:161.46:434:15Waxing Gibbous22Tue
23Wed7:488.38:118.01:401.12:081.26:444:14Waxing Gibbous23Wed
24Thu8:348.58:598.02:261.22:570.96:454:14Waxing Gibbous24Thu
25Fri9:178.89:458.03:111.23:430.76:464:13Waxing Gibbous25Fri
26Sat9:589.010:288.13:531.24:260.46:474:12Full Moon26Sat
27Sun10:379.211:098.14:331.25:080.26:494:12Full Moon27Sun
28Mon11:179.511:508.25:131.25:490.06:504:12Full Moon28Mon
29Tue11:589.65:521.16:31-0.16:514:11Full Moon29Tue
30Wed12:328.212:419.86:331.17:15-0.26:524:11Waning Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

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What time does the tide turn (slack tide) in Plum Island Sound, South End, MA today?

Slack tide in Plum Island Sound, South End, MA is approximately 7:11 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 Plum Island Sound, South End, MA?

Plum Island Sound, South End, MA is currently in a spring phase. Tonight's moon is 92% 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 Plum Island Sound, South End, 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 Plum Island Sound, South End, MA?

Tide predictions for Plum Island Sound, South End, 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 Plum Island Sound, South End, MA?

Tide data for Plum Island Sound, South End, MA is sourced from NOAA Station #8441241. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8441241.

What is the moon phase in Plum Island Sound, South End, MA tonight?

Tonight the moon over Plum Island Sound, South End, MA is Waxing Gibbous (92% illuminated). This places Plum Island Sound, South End, 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