42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

57°
H -°
L 53°
N
14mph
High tide
1:40 am

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

TIDE TIMES for Monday, September 28, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 7:48 am (0.3 ft)
Next high tide (tomorrow) : in 4h 05m at 1:40 am (9.3 ft)
Sunset today : 6:30 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Feb 1850

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:279.82:499.88:44-0.69:10-0.87:015:00Waning Gibbous1Fri
2Sat3:189.63:419.39:37-0.310:01-0.37:005:01Third Quarter2Sat
3Sun4:109.44:368.710:330.010:530.16:595:02Third Quarter3Sun
4Mon5:049.25:328.211:290.311:470.66:585:04Third Quarter4Mon
5Tue5:598.96:307.912:270.56:575:05Third Quarter5Tue
6Wed6:548.87:267.612:420.91:230.66:565:06Waning Crescent6Wed
7Thu7:478.78:217.51:361.12:170.66:545:08Waning Crescent7Thu
8Fri8:398.79:127.62:281.23:080.66:535:09Waning Crescent8Fri
9Sat9:278.89:587.73:171.13:560.56:525:10Waning Crescent9Sat
10Sun10:118.910:407.84:041.14:390.46:515:12New Moon10Sun
11Mon10:529.011:208.04:470.95:200.36:495:13New Moon11Mon
12Tue11:329.111:588.25:280.85:590.26:485:14New Moon12Tue
13Wed12:119.16:080.76:370.16:475:16New Moon13Wed
14Thu12:378.512:519.26:490.57:150.16:455:17Waxing Crescent14Thu
15Fri1:168.71:339.27:300.47:550.16:445:18Waxing Crescent15Fri
16Sat1:588.92:179.18:140.38:360.16:425:20Waxing Crescent16Sat
17Sun2:429.13:058.99:010.29:210.26:415:21Waxing Crescent17Sun
18Mon3:309.33:568.79:520.110:100.36:405:22First Quarter18Mon
19Tue4:219.44:518.510:480.111:050.46:385:23First Quarter19Tue
20Wed5:179.55:518.411:480.06:375:25First Quarter20Wed
21Thu6:169.66:538.412:040.512:50-0.16:355:26Waxing Gibbous21Thu
22Fri7:179.87:548.51:050.41:51-0.46:345:27Waxing Gibbous22Fri
23Sat8:1710.18:548.82:060.22:50-0.66:325:28Waxing Gibbous23Sat
24Sun9:1610.39:529.13:05-0.13:47-0.96:315:30Waxing Gibbous24Sun
25Mon10:1310.510:459.54:03-0.44:40-1.16:295:31Full Moon25Mon
26Tue11:0610.611:369.84:57-0.75:31-1.36:275:32Full Moon26Tue
27Wed11:5710.55:49-0.96:19-1.26:265:33Full Moon27Wed
28Thu12:259.912:4610.36:39-0.97:06-1.06:245:35Waning Gibbous28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

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

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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 95% 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 (95% 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