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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 22m at 10:02 pm (0.2 ft)
Next high tide (tomorrow) : 4:10 am (10.0 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:04 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Aug 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:558.911:1410.44:50-0.65:020.15:358:03New Moon1Mon
2Tue11:479.05:42-0.65:540.15:368:02New Moon2Tue
3Wed12:0410.312:359.16:30-0.56:430.15:378:00New Moon3Wed
4Thu12:5110.11:209.17:15-0.47:290.25:387:59New Moon4Thu
5Fri1:359.92:039.17:59-0.28:150.35:397:58Waxing Crescent5Fri
6Sat2:199.62:469.18:420.09:010.55:407:57Waxing Crescent6Sat
7Sun3:039.33:299.09:260.29:470.65:417:55Waxing Crescent7Sun
8Mon3:488.94:148.910:090.510:350.85:427:54Waxing Crescent8Mon
9Tue4:358.65:008.810:550.811:250.95:437:53First Quarter9Tue
10Wed5:248.35:508.711:431.15:457:51First Quarter10Wed
11Thu6:178.06:418.712:171.112:341.35:467:50First Quarter11Thu
12Fri7:117.87:358.71:121.11:271.45:477:49First Quarter12Fri
13Sat8:067.78:278.82:061.12:201.55:487:47Waxing Gibbous13Sat
14Sun8:597.89:189.02:591.03:111.45:497:46Waxing Gibbous14Sun
15Mon9:508.010:079.23:500.74:011.25:507:44Waxing Gibbous15Mon
16Tue10:388.210:559.54:380.54:490.95:517:43Full Moon16Tue
17Wed11:248.611:419.85:240.25:350.65:527:41Full Moon17Wed
18Thu12:099.06:08-0.26:210.25:537:40Full Moon18Thu
19Fri12:2610.112:549.56:52-0.47:07-0.25:547:38Full Moon19Fri
20Sat1:1310.31:399.97:36-0.67:55-0.45:557:37Waning Gibbous20Sat
21Sun2:0010.32:2710.28:22-0.78:45-0.65:567:35Waning Gibbous21Sun
22Mon2:5110.23:1710.49:10-0.79:39-0.75:577:33Waning Gibbous22Mon
23Tue3:4310.04:0910.410:01-0.510:34-0.65:597:32Third Quarter23Tue
24Wed4:389.75:0510.410:55-0.311:33-0.56:007:30Third Quarter24Wed
25Thu5:379.36:0410.311:520.06:017:28Third Quarter25Thu
26Fri6:389.07:0510.112:34-0.312:530.26:027:27Third Quarter26Fri
27Sat7:428.88:0710.01:37-0.21:550.36:037:25Waning Crescent27Sat
28Sun8:448.79:089.92:38-0.22:550.46:047:24Waning Crescent28Sun
29Mon9:448.810:059.93:37-0.23:530.36:057:22Waning Crescent29Mon
30Tue10:398.910:599.84:32-0.24:470.36:067:20New Moon30Tue
31Wed11:289.011:479.75:22-0.25:370.26:077:18New Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

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

Show All
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 1:06 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 27% 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 Waxing Crescent (27% 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