42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

66°
H 79°
L 61°
WNW
2mph
Low tide
11:33 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 51m at 11:33 am (0.9 ft)
Next high tide : 5:48 pm (9.8 ft)
Sunset today : 7:12 pm
Sunrise tomorrow : 6:11 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 1898

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:008.47:308.512:571.51:241.14:366:43Waxing Gibbous1Sun
2Mon7:548.58:188.91:511.12:131.04:356:44Waxing Gibbous2Mon
3Tue8:458.69:069.42:430.63:000.84:346:45Waxing Gibbous3Tue
4Wed9:368.89:539.93:330.13:460.64:326:46Full Moon4Wed
5Thu10:259.010:4010.44:22-0.44:330.44:316:47Full Moon5Thu
6Fri11:149.211:2810.85:10-0.85:190.24:306:48Full Moon6Fri
7Sat12:039.35:59-1.06:080.14:296:49Full Moon7Sat
8Sun12:1711.012:549.36:49-1.26:590.04:276:51Waning Gibbous8Sun
9Mon1:0911.01:479.37:42-1.17:530.14:266:52Waning Gibbous9Mon
10Tue2:0310.82:429.28:36-1.08:500.24:256:53Waning Gibbous10Tue
11Wed3:0010.53:399.29:32-0.79:500.34:246:54Third Quarter11Wed
12Thu3:5910.14:399.110:30-0.410:530.44:236:55Third Quarter12Thu
13Fri5:019.75:409.211:29-0.111:570.54:226:56Third Quarter13Fri
14Sat6:049.36:409.312:270.14:216:57Third Quarter14Sat
15Sun7:069.07:379.412:590.41:230.34:206:58Waning Crescent15Sun
16Mon8:058.78:309.51:590.32:170.54:196:59Waning Crescent16Mon
17Tue9:008.69:199.52:540.33:070.74:187:00Waning Crescent17Tue
18Wed9:518.410:039.53:450.23:540.94:177:01New Moon18Wed
19Thu10:368.310:459.54:310.24:381.14:167:02New Moon19Thu
20Fri11:178.211:249.45:140.25:191.24:157:03New Moon20Fri
21Sat11:578.15:550.35:591.34:147:04New Moon21Sat
22Sun12:039.412:368.06:350.46:391.44:137:05Waxing Crescent22Sun
23Mon12:439.31:168.07:150.57:201.54:127:06Waxing Crescent23Mon
24Tue1:249.21:588.07:570.68:041.64:127:07Waxing Crescent24Tue
25Wed2:089.12:428.08:400.78:491.64:117:08Waxing Crescent25Wed
26Thu2:548.93:298.09:250.89:381.64:107:09Waxing Crescent26Thu
27Fri3:428.84:178.210:120.910:301.64:107:10First Quarter27Fri
28Sat4:338.65:078.311:011.011:251.54:097:11First Quarter28Sat
29Sun5:278.45:598.611:511.04:087:11First Quarter29Sun
30Mon6:228.46:509.012:211.212:411.04:087:12Waxing Gibbous30Mon
31Tue7:188.47:419.41:170.91:321.04:077:13Waxing Gibbous31Tue
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 neap phase. Tonight's moon is 46% 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 minimum.

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 Third Quarter (46% illuminated). This places Plum Island Sound, South End, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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