42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

73°
H 77°
L 59°
NW
7mph
Low tide
2:46 pm

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

TIDE TIMES for Monday, September 7, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 22m at 2:46 pm (0.7 ft)
Next high tide : 8:59 pm (9.9 ft)
Sunset today : 7:07 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Crescent (15% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 1886

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:098.78:417.71:571.12:370.76:185:32Waning Crescent1Mon
2Tue9:008.79:307.82:491.13:260.66:165:33Waning Crescent2Tue
3Wed9:478.710:148.03:381.04:110.56:155:35Waning Crescent3Wed
4Thu10:298.810:548.24:230.94:530.56:135:36New Moon4Thu
5Fri11:098.911:318.45:050.75:310.46:115:37New Moon5Fri
6Sat11:489.05:450.66:090.36:105:38New Moon6Sat
7Sun12:098.712:279.06:250.46:460.36:085:40New Moon7Sun
8Mon12:478.91:079.07:050.37:240.36:065:41Waxing Crescent8Mon
9Tue1:269.11:498.97:460.28:040.46:055:42Waxing Crescent9Tue
10Wed2:099.22:348.88:300.18:470.46:035:43Waxing Crescent10Wed
11Thu2:549.33:228.79:180.19:330.66:015:44Waxing Crescent11Thu
12Fri3:439.44:148.510:100.110:260.76:005:46First Quarter12Fri
13Sat4:379.45:118.411:080.111:240.75:585:47First Quarter13Sat
14Sun5:359.56:128.412:080.15:565:48First Quarter14Sun
15Mon6:369.67:138.612:250.61:09-0.15:545:49Waxing Gibbous15Mon
16Tue7:379.88:138.91:270.42:09-0.45:535:50Waxing Gibbous16Tue
17Wed8:3710.19:119.32:280.03:06-0.75:515:51Waxing Gibbous17Wed
18Thu9:3510.310:069.83:26-0.44:00-0.95:495:53Full Moon18Thu
19Fri10:3010.510:5710.24:22-0.84:52-1.15:475:54Full Moon19Fri
20Sat11:2210.511:4710.45:14-1.15:41-1.15:465:55Full Moon20Sat
21Sun12:1210.46:06-1.36:29-1.05:445:56Full Moon21Sun
22Mon12:3510.51:0210.16:56-1.27:16-0.85:425:57Waning Gibbous22Mon
23Tue1:2310.41:519.77:46-1.08:04-0.45:405:58Waning Gibbous23Tue
24Wed2:1110.22:409.38:36-0.78:530.05:385:59Waning Gibbous24Wed
25Thu3:009.93:318.89:27-0.39:440.45:376:01Third Quarter25Thu
26Fri3:509.54:238.410:190.110:360.85:356:02Third Quarter26Fri
27Sat4:439.15:188.011:140.511:321.15:336:03Third Quarter27Sat
28Sun5:398.76:157.812:100.85:316:04Third Quarter28Sun
29Mon6:368.57:117.812:291.31:060.95:306:05Waning Crescent29Mon
30Tue7:328.58:047.91:241.31:590.95:286:06Waning Crescent30Tue
31Wed8:258.58:548.12:171.32:490.95:266:07Waning Crescent31Wed
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 15% 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 Crescent (15% 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