42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

58°
H 78°
L 59°
WNW
6mph
High tide
8:36 am

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

TIDE TIMES for Monday, September 7, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 2:46 pm (0.7 ft)
Next high tide : in 1h 18m at 8:36 am (8.3 ft)
Sunset today : 7:07 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Crescent (15% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Sep 1886

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:5510.81:2110.77:14-1.27:41-1.25:076:18Waxing Crescent1Wed
2Thu1:4710.52:1210.78:05-0.98:35-1.05:086:16Waxing Crescent2Thu
3Fri2:4010.03:0510.48:56-0.59:30-0.65:106:14First Quarter3Fri
4Sat3:359.53:5910.19:50-0.110:26-0.35:116:12First Quarter4Sat
5Sun4:319.04:569.710:450.411:250.15:126:11First Quarter5Sun
6Mon5:308.55:549.411:430.75:136:09First Quarter6Mon
7Tue6:308.26:539.112:240.412:411.05:146:07Waxing Gibbous7Tue
8Wed7:298.17:509.01:220.61:381.15:156:05Waxing Gibbous8Wed
9Thu8:238.18:428.92:170.72:311.15:166:04Waxing Gibbous9Thu
10Fri9:138.29:309.03:070.73:211.15:176:02Waxing Gibbous10Fri
11Sat9:588.310:149.03:530.74:070.95:186:00Full Moon11Sat
12Sun10:388.510:549.04:350.64:490.85:195:58Full Moon12Sun
13Mon11:158.611:339.05:140.65:300.75:205:57Full Moon13Mon
14Tue11:528.85:520.66:090.65:215:55Full Moon14Tue
15Wed12:119.012:299.06:290.66:480.55:225:53Waning Gibbous15Wed
16Thu12:509.01:089.17:070.77:290.55:245:51Waning Gibbous16Thu
17Fri1:308.91:499.27:450.78:110.45:255:49Waning Gibbous17Fri
18Sat2:148.82:329.38:270.88:570.45:265:48Waning Gibbous18Sat
19Sun3:008.63:199.39:110.99:470.55:275:46Third Quarter19Sun
20Mon3:518.54:119.310:011.010:410.55:285:44Third Quarter20Mon
21Tue4:458.45:079.410:571.111:400.45:295:42Third Quarter21Tue
22Wed5:448.46:079.511:571.05:305:40Third Quarter22Wed
23Thu6:448.67:079.712:400.312:590.75:315:39Waning Crescent23Thu
24Fri7:438.98:0710.01:390.01:590.35:325:37Waning Crescent24Fri
25Sat8:409.49:0510.32:36-0.32:57-0.15:335:35Waning Crescent25Sat
26Sun9:359.910:0110.53:30-0.63:53-0.65:345:33New Moon26Sun
27Mon10:2810.410:5410.64:22-0.94:46-1.05:365:32New Moon27Mon
28Tue11:1810.711:4510.65:12-1.05:38-1.35:375:30New Moon28Tue
29Wed12:0710.96:01-1.06:29-1.45:385:28Waxing Crescent29Wed
30Thu12:3510.412:5610.96:50-0.87:20-1.25:395:26Waxing Crescent30Thu
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 15% 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 Waning Crescent (15% 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