42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

67°
H 75°
L 59°
NNW
9mph
High tide
1:02 pm

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 7:17 pm (0.4 ft)
Next high tide : in 3h 21m at 1:02 pm (8.9 ft)
Sunset today : 7:23 pm
Sunrise tomorrow : 6:05 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 1913

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:4910.85:42-0.76:13-1.35:395:25New Moon1Wed
2Thu12:1910.112:3711.06:29-0.67:04-1.35:405:24Waxing Crescent2Thu
3Fri1:109.81:2610.97:18-0.37:56-1.15:425:22Waxing Crescent3Fri
4Sat2:019.42:1810.68:080.18:49-0.75:435:20Waxing Crescent4Sat
5Sun2:548.93:1110.19:010.59:44-0.25:445:18First Quarter5Sun
6Mon3:498.44:079.69:570.910:420.35:455:17First Quarter6Mon
7Tue4:478.15:079.110:561.311:420.75:465:15First Quarter7Tue
8Wed5:497.86:098.811:571.55:475:13First Quarter8Wed
9Thu6:507.77:108.612:420.912:581.65:485:12Waxing Gibbous9Thu
10Fri7:477.88:068.51:381.01:551.55:505:10Waxing Gibbous10Fri
11Sat8:388.08:578.52:301.02:481.35:515:08Waxing Gibbous11Sat
12Sun9:238.39:428.53:161.03:351.15:525:07Waxing Gibbous12Sun
13Mon10:038.510:248.53:581.04:190.95:535:05Full Moon13Mon
14Tue10:398.711:028.54:371.04:590.75:545:03Full Moon14Tue
15Wed11:158.911:408.45:131.15:380.55:555:02Full Moon15Wed
16Thu11:509.15:491.26:160.45:575:00Full Moon16Thu
17Fri12:188.412:279.26:241.26:550.45:584:58Waning Gibbous17Fri
18Sat12:578.31:069.37:011.37:360.45:594:57Waning Gibbous18Sat
19Sun1:398.21:489.37:411.48:200.56:004:55Waning Gibbous19Sun
20Mon2:248.02:359.28:241.59:090.66:014:54Waning Gibbous20Mon
21Tue3:137.93:279.29:141.610:020.66:034:52Third Quarter21Tue
22Wed4:077.84:249.110:111.611:000.66:044:51Third Quarter22Wed
23Thu5:067.95:259.111:141.56:054:49Third Quarter23Thu
24Fri6:068.26:289.212:000.612:191.26:064:48Waning Crescent24Fri
25Sat7:068.67:299.412:590.41:220.76:084:46Waning Crescent25Sat
26Sun8:029.28:289.51:550.12:210.26:094:45Waning Crescent26Sun
27Mon8:569.89:259.62:48-0.13:18-0.46:104:43Waning Crescent27Mon
28Tue9:4810.410:199.73:39-0.24:12-0.96:114:42New Moon28Tue
29Wed10:3710.811:109.74:29-0.35:04-1.26:124:40New Moon29Wed
30Thu11:2511.05:17-0.35:54-1.36:144:39New Moon30Thu
31Fri12:009.512:1310.96:05-0.16:44-1.26:154:38Waxing Crescent31Fri
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 98% 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 Full Moon (98% 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