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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 12:39 pm (1.1 ft)
Next high tide : in 46m at 6:27 am (8.1 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:25 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jun 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:3111.32:099.68:04-1.48:16-0.25:078:14Waning Gibbous1Sat
2Sun2:2511.23:039.58:57-1.39:11-0.15:078:15Waning Gibbous2Sun
3Mon3:2010.93:599.49:52-1.110:090.15:068:16Waning Gibbous3Mon
4Tue4:1710.54:579.310:48-0.811:090.35:068:16Third Quarter4Tue
5Wed5:1610.05:569.311:45-0.45:068:17Third Quarter5Wed
6Thu6:179.66:569.312:110.412:43-0.15:058:18Third Quarter6Thu
7Fri7:199.27:549.31:130.51:400.25:058:19Waning Crescent7Fri
8Sat8:198.88:499.32:140.52:350.45:058:19Waning Crescent8Sat
9Sun9:168.69:409.43:110.53:270.75:058:20Waning Crescent9Sun
10Mon10:098.410:279.44:040.44:160.95:048:20Waning Crescent10Mon
11Tue10:588.311:109.44:530.45:011.05:048:21New Moon11Tue
12Wed11:418.211:509.35:380.35:441.25:048:21New Moon12Wed
13Thu12:228.16:190.36:251.35:048:22New Moon13Thu
14Fri12:299.31:018.16:590.47:041.45:048:22New Moon14Fri
15Sat1:079.31:408.17:390.47:441.45:048:23New Moon15Sat
16Sun1:479.32:208.18:200.48:261.55:048:23Waxing Crescent16Sun
17Mon2:299.23:038.19:010.59:091.55:048:23Waxing Crescent17Mon
18Tue3:129.13:478.29:440.59:541.55:048:24Waxing Crescent18Tue
19Wed3:589.04:338.310:290.610:431.55:048:24Waxing Crescent19Wed
20Thu4:468.95:228.411:150.711:351.45:058:24First Quarter20Thu
21Fri5:388.86:128.612:040.75:058:24First Quarter21Fri
22Sat6:328.77:058.912:311.212:560.75:058:25First Quarter22Sat
23Sun7:298.67:579.31:280.91:480.75:058:25Waxing Gibbous23Sun
24Mon8:258.78:509.82:240.52:400.65:068:25Waxing Gibbous24Mon
25Tue9:228.89:4310.33:200.13:330.55:068:25Waxing Gibbous25Tue
26Wed10:178.910:3610.74:15-0.44:260.35:068:25Waxing Gibbous26Wed
27Thu11:129.111:2911.05:09-0.85:180.05:078:25Full Moon27Thu
28Fri12:059.36:02-1.26:11-0.15:078:25Full Moon28Fri
29Sat12:2111.212:589.56:54-1.47:04-0.35:088:25Full Moon29Sat
30Sun1:1411.31:519.67:46-1.47:59-0.35:088:25Waning Gibbous30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

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What time does the tide turn (slack tide) in Plum Island Sound, South End, MA today?

Slack tide in Plum Island Sound, South End, MA is approximately 9:33 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 62% 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 First Quarter (62% 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