42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

64°
H -°
L 63°
ESE
0mph
High tide
3:37 am

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

TIDE TIMES for Tuesday, September 1, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 9:46 am (0.5 ft)
Next high tide (tomorrow) : in 5h 32m at 3:37 am (9.0 ft)
Sunset today : 7:17 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Gibbous (78% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 1908

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:489.89:238.52:390.63:22-0.47:134:19Waning Crescent1Wed
2Thu9:4010.210:168.73:300.44:14-0.87:134:20New Moon2Thu
3Fri10:3210.611:089.04:220.15:05-1.27:134:21New Moon3Fri
4Sat11:2310.95:13-0.25:56-1.57:134:21New Moon4Sat
5Sun12:009.212:1511.06:05-0.46:47-1.67:134:22Waxing Crescent5Sun
6Mon12:529.41:0811.06:59-0.57:39-1.57:134:23Waxing Crescent6Mon
7Tue1:459.52:0310.77:54-0.58:32-1.47:134:24Waxing Crescent7Tue
8Wed2:399.62:5810.38:51-0.49:25-1.17:134:25Waxing Crescent8Wed
9Thu3:349.63:559.79:49-0.310:19-0.77:134:26First Quarter9Thu
10Fri4:309.54:549.210:49-0.111:15-0.37:134:27First Quarter10Fri
11Sat5:279.45:548.711:500.17:124:28First Quarter11Sat
12Sun6:259.36:558.312:110.112:510.27:124:30Waxing Gibbous12Sun
13Mon7:219.37:538.01:070.41:490.27:124:31Waxing Gibbous13Mon
14Tue8:159.28:497.82:010.72:440.27:114:32Waxing Gibbous14Tue
15Wed9:059.19:407.72:520.93:350.27:114:33Waxing Gibbous15Wed
16Thu9:529.110:257.73:411.04:220.27:104:34Full Moon16Thu
17Fri10:359.111:077.74:261.15:050.27:104:35Full Moon17Fri
18Sat11:159.111:467.75:091.15:450.27:094:37Full Moon18Sat
19Sun11:549.15:491.16:240.27:094:38Full Moon19Sun
20Mon12:247.812:339.06:291.17:030.37:084:39Waning Gibbous20Mon
21Tue1:027.91:139.07:101.07:420.37:084:40Waning Gibbous21Tue
22Wed1:438.11:558.97:511.08:220.37:074:41Waning Gibbous22Wed
23Thu2:248.22:388.88:351.09:030.47:064:43Waning Gibbous23Thu
24Fri3:088.33:258.69:220.99:460.57:054:44Third Quarter24Fri
25Sat3:538.54:148.310:120.910:330.77:054:45Third Quarter25Sat
26Sun4:428.65:088.111:060.811:230.87:044:47Third Quarter26Sun
27Mon5:358.86:048.012:030.67:034:48Third Quarter27Mon
28Tue6:299.17:038.012:180.81:020.37:024:49Waning Crescent28Tue
29Wed7:259.48:018.11:130.82:000.07:014:50Waning Crescent29Wed
30Thu8:229.88:598.32:100.62:57-0.47:004:52Waning Crescent30Thu
31Fri9:1810.29:558.63:060.33:53-0.86:594:53Waning Crescent31Fri
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 transitional phase. Tonight's moon is 78% 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 Waning Gibbous (78% 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