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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 32m at 8:48 pm (1.4 ft)
Next high tide (tomorrow) : 2:53 am (9.2 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Nov 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:108.710:328.54:010.84:270.87:175:36Waxing Gibbous1Mon
2Tue10:518.811:158.54:450.85:110.67:185:34Full Moon2Tue
3Wed11:309.011:558.55:260.95:520.57:195:33Full Moon3Wed
4Thu12:079.16:050.96:320.37:215:32Full Moon4Thu
5Fri12:338.512:449.36:431.07:110.37:225:31Full Moon5Fri
6Sat1:128.51:229.37:201.07:500.27:235:29Waning Gibbous6Sat
7Sun1:518.41:029.46:591.17:310.26:244:28Waning Gibbous7Sun
8Mon1:348.41:459.47:401.28:150.26:264:27Waning Gibbous8Mon
9Tue2:198.42:319.48:241.29:020.26:274:26Waning Gibbous9Tue
10Wed3:078.33:219.39:131.29:530.36:284:25Third Quarter10Wed
11Thu3:598.44:169.310:081.210:480.36:294:24Third Quarter11Thu
12Fri4:558.55:149.211:081.111:450.26:314:23Third Quarter12Fri
13Sat5:538.76:159.312:100.86:324:22Third Quarter13Sat
14Sun6:519.27:169.412:430.11:110.46:334:21Waning Crescent14Sun
15Mon7:489.68:159.51:39-0.12:10-0.16:344:20Waning Crescent15Mon
16Tue8:4210.29:129.72:34-0.33:07-0.76:364:19Waning Crescent16Tue
17Wed9:3610.610:079.83:27-0.54:02-1.16:374:18New Moon17Wed
18Thu10:2711.011:009.84:19-0.64:55-1.46:384:17New Moon18Thu
19Fri11:1711.111:519.85:09-0.65:46-1.56:394:17New Moon19Fri
20Sat12:0611.15:59-0.56:36-1.56:414:16Waxing Crescent20Sat
21Sun12:419.612:5610.96:49-0.37:27-1.26:424:15Waxing Crescent21Sun
22Mon1:329.31:4710.57:390.08:17-0.96:434:15Waxing Crescent22Mon
23Tue2:239.12:3810.08:320.39:09-0.56:444:14Waxing Crescent23Tue
24Wed3:158.83:319.59:250.710:01-0.16:454:13First Quarter24Wed
25Thu4:098.54:259.110:211.010:550.36:474:13First Quarter25Thu
26Fri5:048.45:228.711:181.111:490.66:484:12First Quarter26Fri
27Sat5:598.36:198.412:161.26:494:12First Quarter27Sat
28Sun6:538.47:158.212:430.81:111.16:504:11Waxing Gibbous28Sun
29Mon7:448.58:078.11:340.92:041.06:514:11Waxing Gibbous29Mon
30Tue8:318.78:568.12:221.02:540.86:524:10Waxing Gibbous30Tue
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 11:50 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 88% 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 Waning Gibbous (88% 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