42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

66°
H 77°
L 63°
NW
3mph
High tide
11:04 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 5:11 pm (1.3 ft)
Next high tide : in 3h 19m at 11:04 am (7.8 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:01 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jun 1918

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:509.75:269.311:18-0.111:430.55:078:13Third Quarter1Sat
2Sun5:489.56:239.512:130.05:078:14Third Quarter2Sun
3Mon6:489.37:209.912:450.31:090.15:068:15Third Quarter3Mon
4Tue7:499.18:1810.21:470.12:060.15:068:16Waning Crescent4Tue
5Wed8:509.09:1410.42:47-0.23:020.15:058:16Waning Crescent5Wed
6Thu9:499.010:0910.63:45-0.53:570.15:058:17Waning Crescent6Thu
7Fri10:469.011:0310.74:41-0.74:520.25:058:18New Moon7Fri
8Sat11:399.011:5410.75:35-0.85:440.25:058:18New Moon8Sat
9Sun12:309.06:26-0.86:340.35:048:19New Moon9Sun
10Mon12:4410.61:198.97:15-0.77:240.45:048:19New Moon10Mon
11Tue1:3210.42:078.98:02-0.58:130.65:048:20Waxing Crescent11Tue
12Wed2:2010.02:548.88:49-0.39:020.75:048:21Waxing Crescent12Wed
13Thu3:079.73:418.79:360.09:520.95:048:21Waxing Crescent13Thu
14Fri3:569.34:298.610:230.310:431.15:048:22First Quarter14Fri
15Sat4:458.95:178.611:100.611:351.25:048:22First Quarter15Sat
16Sun5:368.56:078.611:590.95:048:22First Quarter16Sun
17Mon6:298.26:588.612:291.312:491.25:048:23First Quarter17Mon
18Tue7:237.97:498.71:241.31:401.35:048:23Waxing Gibbous18Tue
19Wed8:177.88:388.82:171.22:291.55:048:23Waxing Gibbous19Wed
20Thu9:087.79:269.03:091.03:181.55:048:24Waxing Gibbous20Thu
21Fri9:587.810:129.23:580.94:051.55:048:24Waxing Gibbous21Fri
22Sat10:467.810:579.44:460.64:511.45:048:24Full Moon22Sat
23Sun11:318.011:419.65:310.45:351.35:058:24Full Moon23Sun
24Mon12:158.26:150.26:191.15:058:25Full Moon24Mon
25Tue12:259.912:588.56:58-0.17:030.85:058:25Full Moon25Tue
26Wed1:1010.11:438.87:42-0.37:500.65:068:25Waning Gibbous26Wed
27Thu1:5710.22:309.18:27-0.48:390.45:068:25Waning Gibbous27Thu
28Fri2:4610.23:199.49:13-0.59:320.25:068:25Waning Gibbous28Fri
29Sat3:3710.04:109.710:02-0.510:270.15:078:25Waning Gibbous29Sat
30Sun4:319.85:049.910:54-0.311:250.05:078:25Third Quarter30Sun
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