42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

63°
H 63°
L 56°
NE
22mph
Low tide
5:26 pm

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

TIDE TIMES for Friday, September 25, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 41m at 5:26 pm (0.6 ft)
Next high tide : 11:30 pm (9.1 ft)
Sunset today : 6:35 pm
Sunrise tomorrow : 6:33 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jun 1856

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:499.010:0510.73:44-0.73:550.24:117:18New Moon1Sun
2Mon10:429.010:5510.74:37-0.84:450.34:107:19New Moon2Mon
3Tue11:338.911:4410.65:28-0.85:340.54:107:19New Moon3Tue
4Wed12:218.76:17-0.76:230.64:097:20New Moon4Wed
5Thu12:3210.31:098.57:05-0.47:120.84:097:21Waxing Crescent5Thu
6Fri1:2010.01:578.47:53-0.18:011.14:097:21Waxing Crescent6Fri
7Sat2:099.62:468.28:410.28:521.34:087:22Waxing Crescent7Sat
8Sun2:589.33:358.19:300.59:441.54:087:23First Quarter8Sun
9Mon3:488.94:258.110:190.810:381.64:087:23First Quarter9Mon
10Tue4:418.55:168.111:091.011:331.64:087:24First Quarter10Tue
11Wed5:358.26:088.311:591.24:087:24First Quarter11Wed
12Thu6:308.06:588.412:291.512:491.44:087:25Waxing Gibbous12Thu
13Fri7:237.87:458.61:221.41:371.54:077:25Waxing Gibbous13Fri
14Sat8:147.88:318.82:141.12:241.64:077:26Waxing Gibbous14Sat
15Sun9:047.79:169.03:030.93:091.64:077:26Waxing Gibbous15Sun
16Mon9:507.810:009.33:490.73:541.64:077:27Full Moon16Mon
17Tue10:357.910:439.54:340.54:361.54:087:27Full Moon17Tue
18Wed11:188.011:269.75:180.35:191.44:087:27Full Moon18Wed
19Thu12:028.16:010.16:021.24:087:28Full Moon19Thu
20Fri12:119.912:488.36:46-0.16:491.04:087:28Waning Gibbous20Fri
21Sat12:5810.11:358.57:32-0.27:380.94:087:28Waning Gibbous21Sat
22Sun1:4710.12:258.88:20-0.38:310.74:087:28Waning Gibbous22Sun
23Mon2:4010.03:179.09:10-0.39:280.64:097:28Waning Gibbous23Mon
24Tue3:359.84:119.310:02-0.210:270.44:097:29Third Quarter24Tue
25Wed4:329.55:079.610:56-0.111:290.34:097:29Third Quarter25Wed
26Thu5:339.26:059.811:520.14:107:29Third Quarter26Thu
27Fri6:348.97:0210.112:310.112:480.34:107:29Waning Crescent27Fri
28Sat7:358.77:5810.21:32-0.11:450.44:117:29Waning Crescent28Sat
29Sun8:358.58:5410.32:31-0.32:400.54:117:29Waning Crescent29Sun
30Mon9:328.59:4710.33:28-0.43:340.64:127:28New Moon30Mon
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 99% 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 Full Moon (99% 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