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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 43m at 12:26 pm (0.8 ft)
Next high tide : 6:39 pm (9.4 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:168.65:537.211:531.06:185:32Third Quarter1Wed
2Thu6:138.66:527.312:001.612:520.96:165:33Third Quarter2Thu
3Fri7:128.87:507.512:591.51:490.76:155:35Waning Crescent3Fri
4Sat8:099.28:457.91:571.22:440.36:135:36Waning Crescent4Sat
5Sun9:059.69:388.52:540.73:36-0.16:115:37Waning Crescent5Sun
6Mon9:589.910:289.23:490.24:25-0.56:105:38New Moon6Mon
7Tue10:5010.211:169.84:41-0.45:12-0.86:085:39New Moon7Tue
8Wed11:4010.35:33-0.95:59-1.06:065:41New Moon8Wed
9Thu12:0410.312:3010.26:24-1.36:45-1.06:045:42Waxing Crescent9Thu
10Fri12:5210.71:2110.07:15-1.47:34-0.86:035:43Waxing Crescent10Fri
11Sat1:4210.82:139.68:08-1.38:24-0.56:015:44Waxing Crescent11Sat
12Sun2:3410.63:079.19:03-1.09:17-0.15:595:45First Quarter12Sun
13Mon3:2810.34:048.69:59-0.610:130.45:585:47First Quarter13Mon
14Tue4:259.85:048.110:59-0.111:130.85:565:48First Quarter14Tue
15Wed5:279.46:077.812:020.35:545:49First Quarter15Wed
16Thu6:309.07:127.712:161.11:040.55:525:50Waxing Gibbous16Thu
17Fri7:338.88:127.71:181.22:040.75:515:51Waxing Gibbous17Fri
18Sat8:328.79:067.82:181.22:590.75:495:52Waxing Gibbous18Sat
19Sun9:258.79:548.03:131.13:470.75:475:54Waxing Gibbous19Sun
20Mon10:118.710:348.24:010.94:300.75:455:55Full Moon20Mon
21Tue10:528.611:118.54:450.85:080.75:445:56Full Moon21Tue
22Wed11:308.611:458.65:250.65:440.85:425:57Full Moon22Wed
23Thu12:078.56:040.56:190.95:405:58Full Moon23Thu
24Fri12:208.812:448.46:420.46:551.05:385:59Waning Gibbous24Fri
25Sat12:568.91:228.37:210.47:311.15:376:01Waning Gibbous25Sat
26Sun1:349.02:038.18:010.58:101.25:356:02Waning Gibbous26Sun
27Mon2:169.02:477.98:440.58:511.45:336:03Waning Gibbous27Mon
28Tue3:008.93:347.79:310.79:381.55:316:04Third Quarter28Tue
29Wed3:508.94:267.610:230.810:311.65:306:05Third Quarter29Wed
30Thu4:448.85:237.511:200.811:301.65:286:06Third Quarter30Thu
31Fri5:428.96:227.712:190.85:266:07Third Quarter31Fri
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 3:32 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 41% 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 Third Quarter (41% 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