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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 04m at 3:01 pm (1.3 ft)
Next high tide : 9:13 pm (9.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:238.33:379.59:261.210:090.46:416:24Waning Gibbous1Sun
2Mon4:138.24:299.510:161.311:040.46:426:22Third Quarter2Mon
3Tue5:088.05:279.411:131.46:436:20Third Quarter3Tue
4Wed6:088.06:299.412:040.512:161.36:446:18Third Quarter4Wed
5Thu7:118.27:339.51:060.41:221.16:456:17Waning Crescent5Thu
6Fri8:128.58:369.62:070.32:260.76:466:15Waning Crescent6Fri
7Sat9:119.19:369.83:040.03:270.26:476:13Waning Crescent7Sat
8Sun10:069.610:339.93:59-0.24:25-0.36:486:12Waning Crescent8Sun
9Mon10:5810.211:269.94:50-0.35:19-0.86:506:10New Moon9Mon
10Tue11:4710.55:39-0.46:10-1.06:516:08New Moon10Tue
11Wed12:179.812:3410.76:27-0.37:00-1.16:526:07New Moon11Wed
12Thu1:069.61:2010.77:13-0.17:48-1.06:536:05Waxing Crescent12Thu
13Fri1:539.32:0710.58:000.28:37-0.76:546:03Waxing Crescent13Fri
14Sat2:428.92:5510.18:470.59:26-0.36:556:02Waxing Crescent14Sat
15Sun3:308.53:459.79:370.910:170.26:576:00Waxing Crescent15Sun
16Mon4:218.24:369.210:281.311:100.66:585:58First Quarter16Mon
17Tue5:147.95:318.811:231.56:595:57First Quarter17Tue
18Wed6:107.76:298.512:050.912:211.77:005:55First Quarter18Wed
19Thu7:087.67:278.31:021.11:191.87:015:54First Quarter19Thu
20Fri8:037.88:238.31:561.22:161.67:035:52Waxing Gibbous20Fri
21Sat8:548.09:158.32:471.23:091.47:045:51Waxing Gibbous21Sat
22Sun9:408.310:038.33:351.23:581.17:055:49Waxing Gibbous22Sun
23Mon10:238.610:478.44:181.14:440.87:065:48Waxing Gibbous23Mon
24Tue11:038.911:298.44:591.15:270.67:075:46Full Moon24Tue
25Wed11:419.25:381.16:070.37:095:45Full Moon25Wed
26Thu12:098.412:199.46:161.16:470.17:105:43Full Moon26Thu
27Fri12:498.512:599.66:541.17:280.07:115:42Full Moon27Fri
28Sat1:318.51:409.87:331.08:12-0.17:125:40Waning Gibbous28Sat
29Sun2:158.42:269.88:161.08:59-0.17:145:39Waning Gibbous29Sun
30Mon3:038.43:169.89:041.19:500.07:155:38Waning Gibbous30Mon
31Tue3:558.34:109.79:581.110:450.17:165:36Third Quarter31Tue
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 6:07 pm — 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 spring phase. Tonight's moon is 84% 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 Waxing Gibbous (84% 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