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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : in 3h 07m at 1:57 am (0.7 ft)
Next high tide (tomorrow) : 8:00 am (8.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:2310.811:589.15:12-0.15:55-1.27:134:20Full Moon1Fri
2Sat12:1410.96:04-0.46:45-1.47:134:21Waning Gibbous2Sat
3Sun12:499.51:0710.86:58-0.67:35-1.47:134:21Waning Gibbous3Sun
4Mon1:419.72:0010.57:53-0.78:26-1.37:134:22Waning Gibbous4Mon
5Tue2:339.92:5510.18:49-0.69:17-1.07:134:23Third Quarter5Tue
6Wed3:279.93:519.59:47-0.510:11-0.67:134:24Third Quarter6Wed
7Thu4:239.94:509.010:46-0.311:06-0.27:134:25Third Quarter7Thu
8Fri5:209.75:508.511:47-0.17:124:26Third Quarter8Fri
9Sat6:189.66:528.112:030.212:480.07:124:27Waning Crescent9Sat
10Sun7:169.47:527.81:010.61:480.27:124:29Waning Crescent10Sun
11Mon8:129.38:497.71:570.82:450.27:124:30Waning Crescent11Mon
12Tue9:059.29:417.62:511.03:370.37:114:31Waning Crescent12Tue
13Wed9:549.110:287.63:411.14:250.37:114:32New Moon13Wed
14Thu10:389.111:107.74:281.15:080.37:114:33New Moon14Thu
15Fri11:199.011:497.85:111.15:480.37:104:34New Moon15Fri
16Sat11:589.05:521.06:260.37:104:35New Moon16Sat
17Sun12:267.912:378.96:331.07:040.37:094:37Waxing Crescent17Sun
18Mon1:048.11:168.97:140.97:420.47:084:38Waxing Crescent18Mon
19Tue1:438.21:578.77:560.98:210.57:084:39Waxing Crescent19Tue
20Wed2:248.42:418.58:390.89:010.67:074:40Waxing Crescent20Wed
21Thu3:078.53:278.39:250.89:430.87:064:42First Quarter21Thu
22Fri3:528.64:168.010:150.810:291.07:064:43First Quarter22Fri
23Sat4:408.75:097.711:090.811:201.17:054:44First Quarter23Sat
24Sun5:338.86:057.612:060.77:044:45First Quarter24Sun
25Mon6:289.07:047.612:151.11:040.57:034:47Waxing Gibbous25Mon
26Tue7:259.38:027.81:121.12:020.27:034:48Waxing Gibbous26Tue
27Wed8:229.78:598.12:090.82:58-0.27:024:49Waxing Gibbous27Wed
28Thu9:1810.19:548.53:060.43:53-0.67:014:51Full Moon28Thu
29Fri10:1310.510:479.04:020.04:45-1.07:004:52Full Moon29Fri
30Sat11:0610.711:389.54:56-0.55:34-1.36:594:53Full Moon30Sat
31Sun11:5810.85:49-0.86:23-1.56:584:54Full Moon31Sun
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 4:58 am — 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 67% 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 First Quarter (67% 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