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 3h 36m 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 - Sep 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:139.16:08-0.16:240.26:087:17New Moon1Thu
2Fri12:319.612:549.16:500.07:070.36:097:15New Moon2Fri
3Sat1:129.41:349.17:310.27:490.36:107:13Waxing Crescent3Sat
4Sun1:539.22:139.18:110.48:320.46:117:12Waxing Crescent4Sun
5Mon2:349.02:539.18:510.69:150.56:127:10Waxing Crescent5Mon
6Tue3:168.83:369.09:330.810:000.76:147:08Waxing Crescent6Tue
7Wed4:018.54:218.910:171.010:470.86:157:06First Quarter7Wed
8Thu4:488.25:098.811:041.311:381.06:167:05First Quarter8Thu
9Fri5:398.06:008.711:551.56:177:03First Quarter9Fri
10Sat6:337.86:558.712:321.112:481.66:187:01First Quarter10Sat
11Sun7:287.87:508.71:281.11:431.56:196:59Waxing Gibbous11Sun
12Mon8:237.98:439.02:221.02:371.46:206:57Waxing Gibbous12Mon
13Tue9:168.29:369.23:150.73:301.06:216:56Waxing Gibbous13Tue
14Wed10:068.610:269.64:040.44:200.66:226:54Waxing Gibbous14Wed
15Thu10:549.111:159.94:520.15:090.16:236:52Full Moon15Thu
16Fri11:419.65:38-0.35:58-0.46:246:50Full Moon16Fri
17Sat12:0310.212:2710.26:23-0.66:46-0.86:256:49Full Moon17Sat
18Sun12:5110.41:1410.67:09-0.77:35-1.16:266:47Waning Gibbous18Sun
19Mon1:4010.42:0310.87:56-0.88:26-1.26:276:45Waning Gibbous19Mon
20Tue2:3110.32:5410.98:46-0.79:20-1.26:296:43Waning Gibbous20Tue
21Wed3:2510.03:4710.89:39-0.510:15-1.06:306:41Waning Gibbous21Wed
22Thu4:209.74:4310.610:34-0.211:13-0.76:316:40Third Quarter22Thu
23Fri5:199.35:4310.211:330.16:326:38Third Quarter23Fri
24Sat6:219.06:469.912:14-0.412:350.46:336:36Third Quarter24Sat
25Sun7:248.87:499.71:17-0.21:380.56:346:34Waning Crescent25Sun
26Mon8:278.88:509.52:180.02:390.56:356:32Waning Crescent26Mon
27Tue9:258.89:489.43:160.13:370.56:366:31Waning Crescent27Tue
28Wed10:188.910:409.34:090.14:300.46:376:29Waning Crescent28Wed
29Thu11:069.011:279.24:580.25:190.36:386:27New Moon29Thu
30Fri11:489.15:420.36:030.36:396:25New Moon30Fri
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 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