42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

71°
H 73°
L 64°
SW
6mph
High tide
3:34 pm

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

TIDE TIMES for Thursday, October 1, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 10:07 pm (-0.4 ft)
Next high tide : in 2h 25m at 3:34 pm (10.3 ft)
Sunset today : 6:24 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 1844

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:038.42:179.18:131.28:460.65:445:28Waning Gibbous1Tue
2Wed2:478.13:038.98:581.49:340.85:455:26Third Quarter2Wed
3Thu3:357.93:528.89:461.610:241.05:465:25Third Quarter3Thu
4Fri4:267.84:448.610:381.711:181.25:485:23Third Quarter4Fri
5Sat5:207.75:408.511:341.85:495:21Third Quarter5Sat
6Sun6:157.86:368.512:131.212:311.65:505:20Waning Crescent6Sun
7Mon7:098.07:308.71:071.11:261.45:515:18Waning Crescent7Mon
8Tue8:008.48:238.91:570.92:191.05:525:16Waning Crescent8Tue
9Wed8:498.99:139.12:450.73:090.55:535:14Waning Crescent9Wed
10Thu9:359.510:019.43:320.43:580.05:545:13New Moon10Thu
11Fri10:2110.010:499.64:170.14:45-0.55:565:11New Moon11Fri
12Sat11:0710.511:379.75:01-0.15:33-0.95:575:09New Moon12Sat
13Sun11:5410.95:47-0.26:21-1.25:585:08Waxing Crescent13Sun
14Mon12:269.812:4211.06:34-0.37:12-1.35:595:06Waxing Crescent14Mon
15Tue1:169.71:3411.07:25-0.38:05-1.26:005:04Waxing Crescent15Tue
16Wed2:099.52:2810.88:19-0.19:00-0.96:015:03Waxing Crescent16Wed
17Thu3:059.33:2610.59:160.19:58-0.66:035:01First Quarter17Thu
18Fri4:049.14:2610.110:170.310:58-0.36:045:00First Quarter18Fri
19Sat5:068.95:309.711:200.56:054:58First Quarter19Sat
20Sun6:108.96:359.412:000.012:250.56:064:57Waxing Gibbous20Sun
21Mon7:119.07:379.21:000.11:270.56:084:55Waxing Gibbous21Mon
22Tue8:089.28:359.01:560.22:260.36:094:54Waxing Gibbous22Tue
23Wed9:009.39:278.92:490.43:190.26:104:52Waxing Gibbous23Wed
24Thu9:479.410:158.83:380.54:080.16:114:51Full Moon24Thu
25Fri10:299.410:578.64:220.64:520.16:124:49Full Moon25Fri
26Sat11:089.411:378.55:030.85:330.16:144:48Full Moon26Sat
27Sun11:469.45:430.96:130.26:154:46Full Moon27Sun
28Mon12:158.412:249.36:211.16:530.36:164:45Waning Gibbous28Mon
29Tue12:548.31:039.37:011.27:340.46:174:43Waning Gibbous29Tue
30Wed1:358.21:459.17:421.38:170.56:194:42Waning Gibbous30Wed
31Thu2:188.12:309.08:261.59:020.76:204:41Waning Gibbous31Thu
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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 (71% illuminated). This places Plum Island Sound, South End, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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