42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

69°
H 73°
L 69°
SSE
7mph
Low tide
4:45 pm

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

TIDE TIMES for Wednesday, September 9, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 1h 32m at 4:45 pm (0.2 ft)
Next high tide : 10:56 pm (10.0 ft)
Sunset today : 7:04 pm
Sunrise tomorrow : 6:16 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:508.79:217.82:381.03:160.66:225:36Waxing Gibbous1Wed
2Thu9:398.710:068.03:281.04:020.66:205:37Waxing Gibbous2Thu
3Fri10:228.710:468.24:150.84:430.56:195:39Full Moon3Fri
4Sat11:028.811:238.44:570.75:220.56:175:40Full Moon4Sat
5Sun11:408.811:598.65:370.65:590.56:155:41Full Moon5Sun
6Mon12:188.86:160.46:350.56:145:42Full Moon6Mon
7Tue12:368.812:568.76:550.37:120.66:125:43Waning Gibbous7Tue
8Wed1:149.01:378.67:360.37:500.66:105:45Waning Gibbous8Wed
9Thu1:549.12:208.58:180.38:310.76:095:46Waning Gibbous9Thu
10Fri2:389.23:068.39:030.39:150.86:075:47Waning Gibbous10Fri
11Sat3:249.23:558.29:530.410:040.96:055:48Third Quarter11Sat
12Sun4:169.24:508.110:470.411:001.06:045:49Third Quarter12Sun
13Mon5:129.25:488.111:460.46:025:51Third Quarter13Mon
14Tue6:129.36:498.212:000.912:460.26:005:52Waning Crescent14Tue
15Wed7:129.57:488.61:020.71:450.05:585:53Waning Crescent15Wed
16Thu8:129.88:459.12:030.32:41-0.35:575:54Waning Crescent16Thu
17Fri9:1010.09:409.73:02-0.23:35-0.75:555:55Waning Crescent17Fri
18Sat10:0610.310:3310.23:58-0.74:27-0.95:535:56New Moon18Sat
19Sun10:5910.411:2310.64:52-1.25:17-1.15:515:58New Moon19Sun
20Mon11:5010.35:44-1.46:05-1.15:505:59New Moon20Mon
21Tue12:1210.812:4110.26:35-1.56:54-0.95:486:00Waxing Crescent21Tue
22Wed1:0110.81:319.87:26-1.47:43-0.65:466:01Waxing Crescent22Wed
23Thu1:5110.62:229.48:17-1.18:33-0.35:446:02Waxing Crescent23Thu
24Fri2:4210.33:149.09:10-0.79:250.25:436:03First Quarter24Fri
25Sat3:349.84:088.510:04-0.210:200.65:416:05First Quarter25Sat
26Sun4:299.45:048.211:000.311:171.05:396:06First Quarter26Sun
27Mon5:268.96:037.911:570.65:376:07First Quarter27Mon
28Tue6:258.77:017.812:151.212:540.85:356:08Waxing Gibbous28Tue
29Wed7:238.57:557.91:131.31:490.95:346:09Waxing Gibbous29Wed
30Thu8:178.48:458.12:081.22:390.95:326:10Waxing Gibbous30Thu
31Fri9:078.59:318.32:591.13:260.95:306:11Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

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

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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 spring phase. Tonight's moon is 3% 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 maximum.

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 New Moon (3% illuminated). This places Plum Island Sound, South End, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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