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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 30m at 6:59 pm (-0.1 ft)
Next high tide (tomorrow) : 1:10 am (10.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:599.22:228.78:200.18:380.46:175:32Waning Gibbous1Sat
2Sun2:429.13:068.49:060.39:220.76:165:34Waning Gibbous2Sun
3Mon3:278.93:548.19:530.510:091.06:145:35Third Quarter3Mon
4Tue4:158.74:447.810:440.811:001.26:125:36Third Quarter4Tue
5Wed5:078.55:387.611:390.911:541.46:115:37Third Quarter5Wed
6Thu6:018.46:347.512:341.06:095:39Third Quarter6Thu
7Fri6:568.57:297.612:491.41:291.06:075:40Waning Crescent7Fri
8Sat7:508.68:217.81:431.32:210.86:055:41Waning Crescent8Sat
9Sun9:418.810:108.13:351.14:100.57:046:42Waning Crescent9Sun
10Mon10:309.110:578.64:250.74:560.37:026:43Waning Crescent10Mon
11Tue11:179.411:429.15:120.35:400.07:006:45New Moon11Tue
12Wed12:039.65:58-0.16:23-0.36:596:46New Moon12Wed
13Thu12:259.612:489.86:44-0.57:06-0.56:576:47New Moon13Thu
14Fri1:1010.01:359.97:30-0.97:51-0.66:556:48Waxing Crescent14Fri
15Sat1:5610.42:249.98:19-1.18:38-0.66:536:49Waxing Crescent15Sat
16Sun2:4510.63:159.79:10-1.19:28-0.56:526:50Waxing Crescent16Sun
17Mon3:3710.64:089.510:04-1.010:22-0.36:506:52Waxing Crescent17Mon
18Tue4:3110.45:059.211:01-0.811:19-0.16:486:53First Quarter18Tue
19Wed5:3010.26:068.912:01-0.56:466:54First Quarter19Wed
20Thu6:329.97:108.712:210.21:04-0.36:456:55First Quarter20Thu
21Fri7:369.78:138.71:240.32:06-0.26:436:56Waxing Gibbous21Fri
22Sat8:399.69:148.82:270.33:06-0.26:416:57Waxing Gibbous22Sat
23Sun9:399.510:119.03:270.24:02-0.16:396:59Waxing Gibbous23Sun
24Mon10:349.411:029.24:240.14:53-0.16:387:00Waxing Gibbous24Mon
25Tue11:249.411:479.35:160.05:40-0.16:367:01Full Moon25Tue
26Wed12:099.26:03-0.16:230.16:347:02Full Moon26Wed
27Thu12:289.312:519.16:46-0.17:040.26:327:03Full Moon27Thu
28Fri1:079.31:318.97:28-0.17:430.46:317:04Full Moon28Fri
29Sat1:469.32:118.88:090.08:230.66:297:06Waning Gibbous29Sat
30Sun2:259.32:528.68:510.29:040.86:277:07Waning Gibbous30Sun
31Mon3:079.23:358.49:340.39:471.06:257:08Waning Gibbous31Mon
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 10:04 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 2% 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 New Moon (2% 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