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

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 1:38 am (0.9 ft)
Next high tide : in 4h 10m at 7:13 pm (9.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:04 am
Moon phase : Third Quarter (37% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:1810.810:549.34:08-0.24:50-1.47:134:20Full Moon1Mon
2Tue11:1111.111:469.55:01-0.55:42-1.67:134:21Full Moon2Tue
3Wed12:0311.25:54-0.66:34-1.77:134:21Waning Gibbous3Wed
4Thu12:399.612:5611.06:47-0.77:26-1.67:134:22Waning Gibbous4Thu
5Fri1:319.61:4910.77:41-0.68:18-1.47:134:23Waning Gibbous5Fri
6Sat2:259.62:4310.38:37-0.59:10-1.17:134:24Waning Gibbous6Sat
7Sun3:189.53:399.79:33-0.210:03-0.77:134:25Third Quarter7Sun
8Mon4:139.44:359.210:310.010:57-0.27:124:26Third Quarter8Mon
9Tue5:099.25:348.611:300.211:520.27:124:27Third Quarter9Tue
10Wed6:059.16:328.212:290.47:124:29Third Quarter10Wed
11Thu7:009.07:307.912:470.51:260.57:124:30Waning Crescent11Thu
12Fri7:538.98:247.81:400.82:200.57:114:31Waning Crescent12Fri
13Sat8:438.99:157.72:310.93:110.47:114:32Waning Crescent13Sat
14Sun9:298.910:027.73:191.03:590.47:104:33Waning Crescent14Sun
15Mon10:139.010:447.74:051.14:420.37:104:34New Moon15Mon
16Tue10:549.011:247.84:481.15:230.27:104:35New Moon16Tue
17Wed11:339.15:291.06:030.27:094:37New Moon17Wed
18Thu12:027.912:129.16:081.06:420.17:084:38New Moon18Thu
19Fri12:418.112:529.26:490.97:210.17:084:39Waxing Crescent19Fri
20Sat1:218.21:339.17:300.88:010.17:074:40Waxing Crescent20Sat
21Sun2:038.42:179.08:130.88:420.17:064:42Waxing Crescent21Sun
22Mon2:468.63:038.98:590.79:260.27:064:43Waxing Crescent22Mon
23Tue3:338.73:538.79:490.610:130.37:054:44First Quarter23Tue
24Wed4:228.94:468.510:440.511:040.47:044:45First Quarter24Wed
25Thu5:159.15:448.411:420.311:590.57:034:47First Quarter25Thu
26Fri6:119.46:448.312:420.17:024:48Waxing Gibbous26Fri
27Sat7:099.77:448.412:570.41:42-0.27:024:49Waxing Gibbous27Sat
28Sun8:0710.08:438.61:550.32:41-0.67:014:51Waxing Gibbous28Sun
29Mon9:0410.49:418.92:530.03:38-1.07:004:52Waxing Gibbous29Mon
30Tue10:0110.710:369.23:50-0.34:33-1.36:594:53Full Moon30Tue
31Wed10:5510.811:299.44:45-0.55:25-1.56:584:55Full Moon31Wed
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 10:25 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 transitional phase. Tonight's moon is 37% 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 Third Quarter (37% 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