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 57m at 9:44 am (-0.7 ft)
Next high tide : 3:52 pm (9.3 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 - Jul 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:009.16:349.212:220.25:098:25First Quarter1Sat
2Sun6:588.67:289.112:550.71:160.65:098:24First Quarter2Sun
3Mon7:558.38:219.11:510.82:080.95:108:24Waxing Gibbous3Mon
4Tue8:498.19:119.12:460.82:591.15:108:24Waxing Gibbous4Tue
5Wed9:418.09:589.13:380.73:481.25:118:24Waxing Gibbous5Wed
6Thu10:297.910:439.14:270.74:351.35:128:23Waxing Gibbous6Thu
7Fri11:147.911:259.25:120.65:191.35:128:23Full Moon7Fri
8Sat11:568.05:550.56:011.35:138:23Full Moon8Sat
9Sun12:059.312:368.16:360.46:421.25:148:22Full Moon9Sun
10Mon12:459.31:158.27:160.37:221.25:148:22Full Moon10Mon
11Tue1:259.41:568.47:560.38:041.15:158:21Waning Gibbous11Tue
12Wed2:079.42:388.68:360.28:471.05:168:21Waning Gibbous12Wed
13Thu2:509.43:228.89:180.29:330.95:178:20Waning Gibbous13Thu
14Fri3:369.44:089.010:020.210:220.85:188:20Waning Gibbous14Fri
15Sat4:259.34:579.210:480.211:150.65:188:19Third Quarter15Sat
16Sun5:189.15:499.411:390.35:198:18Third Quarter16Sun
17Mon6:148.96:449.712:120.512:330.35:208:18Third Quarter17Mon
18Tue7:138.87:4110.01:120.21:290.35:218:17Waning Crescent18Tue
19Wed8:138.88:3810.32:110.02:260.35:228:16Waning Crescent19Wed
20Thu9:138.99:3510.63:10-0.43:240.15:238:15Waning Crescent20Thu
21Fri10:119.110:3210.84:08-0.74:210.05:248:14Waning Crescent21Fri
22Sat11:089.311:2711.05:04-1.05:16-0.25:258:13New Moon22Sat
23Sun12:029.55:58-1.26:10-0.45:268:13New Moon23Sun
24Mon12:2011.012:549.66:49-1.27:03-0.45:278:12New Moon24Mon
25Tue1:1210.91:449.77:39-1.27:55-0.45:288:11Waxing Crescent25Tue
26Wed2:0210.62:349.78:28-1.08:47-0.25:298:10Waxing Crescent26Wed
27Thu2:5310.33:249.69:17-0.79:390.05:308:09Waxing Crescent27Thu
28Fri3:439.84:139.510:06-0.310:310.25:318:08First Quarter28Fri
29Sat4:349.35:039.310:550.111:240.55:328:07First Quarter29Sat
30Sun5:278.85:559.111:460.55:338:05First Quarter30Sun
31Mon6:218.46:488.912:190.712:380.95:348:04First Quarter31Mon
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 12:48 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 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