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

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 5h 11m at 11:14 pm (1.0 ft)
Next high tide (tomorrow) : 5:17 am (8.7 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:349.67:088.412:210.31:06-0.17:134:20Waxing Gibbous1Sat
2Sun7:329.98:098.31:180.42:06-0.47:134:21Waxing Gibbous2Sun
3Mon8:2910.29:088.32:160.43:05-0.67:134:22Waxing Gibbous3Mon
4Tue9:2610.410:068.43:120.34:02-0.87:134:23Full Moon4Tue
5Wed10:2110.511:008.54:080.24:56-1.07:134:24Full Moon5Wed
6Thu11:1410.511:518.65:020.15:47-1.07:134:25Full Moon6Thu
7Fri12:0410.35:540.16:36-0.97:124:26Full Moon7Fri
8Sat12:408.612:5410.16:450.27:24-0.77:124:27Waning Gibbous8Sat
9Sun1:298.71:439.77:350.38:11-0.47:124:28Waning Gibbous9Sun
10Mon2:178.62:319.38:260.48:57-0.17:124:29Waning Gibbous10Mon
11Tue3:048.63:208.89:170.69:430.37:114:30Third Quarter11Tue
12Wed3:518.64:108.310:090.810:310.67:114:31Third Quarter12Wed
13Thu4:408.55:037.911:020.911:201.07:114:32Third Quarter13Thu
14Fri5:308.45:577.511:571.07:104:34Third Quarter14Fri
15Sat6:218.46:537.312:111.312:521.07:104:35Waning Crescent15Sat
16Sun7:138.47:477.21:021.51:461.07:094:36Waning Crescent16Sun
17Mon8:038.58:397.21:531.62:380.97:094:37Waning Crescent17Mon
18Tue8:528.69:287.22:431.63:280.77:084:38Waning Crescent18Tue
19Wed9:398.810:147.43:311.54:140.57:074:40Waning Crescent19Wed
20Thu10:249.010:577.64:161.44:580.37:074:41New Moon20Thu
21Fri11:069.211:397.84:591.25:390.17:064:42New Moon21Fri
22Sat11:499.55:420.96:20-0.17:054:43New Moon22Sat
23Sun12:208.112:329.66:250.77:01-0.37:044:45Waxing Crescent23Sun
24Mon1:038.51:169.67:100.47:43-0.47:044:46Waxing Crescent24Mon
25Tue1:478.82:049.57:570.28:27-0.47:034:47Waxing Crescent25Tue
26Wed2:339.22:549.38:480.09:13-0.27:024:49Waxing Crescent26Wed
27Thu3:229.43:479.09:43-0.110:030.07:014:50First Quarter27Thu
28Fri4:159.64:448.610:41-0.110:570.27:004:51First Quarter28Fri
29Sat5:119.75:458.311:42-0.111:560.46:594:53First Quarter29Sat
30Sun6:109.76:488.012:46-0.26:584:54Waxing Gibbous30Sun
31Mon7:119.87:528.012:570.61:48-0.26:574:55Waxing Gibbous31Mon
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 2:15 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 62% 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 Third Quarter (62% 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