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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 31m at 12:23 pm (0.4 ft)
Next high tide : 6:37 pm (9.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:417.68:598.52:371.22:511.76:416:23Waning Crescent1Mon
2Tue9:327.89:498.63:281.13:421.56:426:22Waning Crescent2Tue
3Wed10:188.110:368.84:151.04:301.26:436:20Waning Crescent3Wed
4Thu11:008.411:198.94:580.85:150.96:446:18New Moon4Thu
5Fri11:398.85:380.75:560.66:456:16New Moon5Fri
6Sat12:009.012:179.26:160.66:370.36:466:15New Moon6Sat
7Sun12:409.112:569.56:530.67:180.06:486:13New Moon7Sun
8Mon1:219.11:369.87:310.68:01-0.26:496:11Waxing Crescent8Mon
9Tue2:059.02:199.98:120.68:46-0.36:506:10Waxing Crescent9Tue
10Wed2:518.93:0610.08:560.79:36-0.36:516:08Waxing Crescent10Wed
11Thu3:418.73:5710.09:460.810:30-0.26:526:06First Quarter11Thu
12Fri4:358.54:539.910:410.911:290.06:536:05First Quarter12Fri
13Sat5:348.45:549.711:431.06:546:03First Quarter13Sat
14Sun6:378.46:599.612:310.112:481.06:566:01First Quarter14Sun
15Mon7:418.58:049.61:340.11:540.86:576:00Waxing Gibbous15Mon
16Tue8:438.99:079.72:350.02:570.46:585:58Waxing Gibbous16Tue
17Wed9:419.310:069.73:33-0.13:570.16:595:56Waxing Gibbous17Wed
18Thu10:359.711:009.74:26-0.24:52-0.37:005:55Full Moon18Thu
19Fri11:2410.011:519.65:16-0.25:44-0.57:025:53Full Moon19Fri
20Sat12:1010.16:03-0.16:32-0.67:035:52Full Moon20Sat
21Sun12:389.412:5310.26:470.17:18-0.67:045:50Full Moon21Sun
22Mon1:239.21:3610.07:300.38:03-0.47:055:49Waning Gibbous22Mon
23Tue2:078.92:189.88:140.78:48-0.17:065:47Waning Gibbous23Tue
24Wed2:528.53:029.58:581.09:340.27:085:46Waning Gibbous24Wed
25Thu3:378.23:499.29:441.310:220.57:095:44Waning Gibbous25Thu
26Fri4:257.94:388.810:331.611:130.87:105:43Third Quarter26Fri
27Sat5:167.75:318.611:261.87:115:42Third Quarter27Sat
28Sun6:117.66:278.412:061.112:221.97:135:40Third Quarter28Sun
29Mon7:077.67:248.31:021.21:201.97:145:39Third Quarter29Mon
30Tue8:017.88:208.31:561.22:161.77:155:37Waning Crescent30Tue
31Wed8:528.19:118.42:461.13:081.47:165:36Waning Crescent31Wed
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 3:30 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Plum Island Sound, South End, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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