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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 40m at 8:48 pm (1.4 ft)
Next high tide (tomorrow) : 2:53 am (9.2 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Dec 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:208.23:348.79:331.310:040.66:544:10Third Quarter1Sun
2Mon4:098.24:258.510:251.410:530.86:554:10Third Quarter2Mon
3Tue4:598.25:188.211:191.411:450.96:564:10Third Quarter3Tue
4Wed5:518.36:138.112:141.36:574:09Third Quarter4Wed
5Thu6:438.57:078.012:361.01:081.16:584:09Waning Crescent5Thu
6Fri7:338.87:598.11:261.02:000.86:594:09Waning Crescent6Fri
7Sat8:219.18:508.22:140.92:500.47:004:09Waning Crescent7Sat
8Sun9:089.59:398.43:020.83:390.17:014:09Waning Crescent8Sun
9Mon9:559.810:268.73:480.64:26-0.37:024:09New Moon9Mon
10Tue10:4110.211:148.94:340.45:12-0.77:024:09New Moon10Tue
11Wed11:2810.55:210.15:59-1.07:034:09New Moon11Wed
12Thu12:029.212:1710.76:09-0.16:47-1.27:044:09Waxing Crescent12Thu
13Fri12:519.41:0710.86:59-0.37:37-1.37:054:09Waxing Crescent13Fri
14Sat1:429.52:0010.67:53-0.38:29-1.27:064:10Waxing Crescent14Sat
15Sun2:369.72:5510.48:49-0.39:23-1.17:064:10First Quarter15Sun
16Mon3:319.73:5310.09:48-0.310:19-0.87:074:10First Quarter16Mon
17Tue4:289.84:539.610:49-0.211:16-0.57:084:10First Quarter17Tue
18Wed5:289.85:559.211:51-0.27:084:11First Quarter18Wed
19Thu6:289.86:588.912:15-0.312:53-0.27:094:11Waxing Gibbous19Thu
20Fri7:269.87:588.71:13-0.11:53-0.27:094:12Waxing Gibbous20Fri
21Sat8:229.88:568.52:090.12:50-0.37:104:12Waxing Gibbous21Sat
22Sun9:159.89:498.43:020.33:43-0.37:104:13Waxing Gibbous22Sun
23Mon10:049.710:378.43:530.44:32-0.37:114:13Full Moon23Mon
24Tue10:499.711:218.34:400.55:17-0.37:114:14Full Moon24Tue
25Wed11:319.55:240.65:59-0.27:124:14Full Moon25Wed
26Thu12:018.312:119.46:060.76:40-0.17:124:15Full Moon26Thu
27Fri12:418.312:519.36:480.87:200.07:124:16Waning Gibbous27Fri
28Sat1:228.31:339.17:310.98:010.27:124:17Waning Gibbous28Sat
29Sun2:038.32:168.98:141.08:430.37:134:17Waning Gibbous29Sun
30Mon2:468.33:018.79:001.09:270.47:134:18Waning Gibbous30Mon
31Tue3:318.43:488.59:481.17:134:19Third Quarter31Tue
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 11:50 pm — 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 spring phase. Tonight's moon is 88% 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 Gibbous (88% 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