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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 10:37 am (-0.4 ft)
Next high tide : in 12m at 4:10 am (10.0 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:108.54:288.410:281.010:530.67:134:19Third Quarter1Fri
2Sat5:008.45:218.011:221.111:430.97:134:20Third Quarter2Sat
3Sun5:518.46:167.812:171.17:134:21Third Quarter3Sun
4Mon6:438.57:107.712:351.01:111.07:134:22Waning Crescent4Mon
5Tue7:348.68:037.71:261.12:030.87:134:23Waning Crescent5Tue
6Wed8:238.88:537.72:151.12:540.67:134:24Waning Crescent6Wed
7Thu9:109.09:417.93:031.13:420.37:134:25Waning Crescent7Thu
8Fri9:559.310:278.13:490.94:270.07:134:26New Moon8Fri
9Sat10:409.611:118.44:340.75:11-0.37:124:27New Moon9Sat
10Sun11:249.911:558.75:180.55:54-0.57:124:28New Moon10Sun
11Mon12:0810.16:020.26:38-0.87:124:29New Moon11Mon
12Tue12:409.012:5510.26:490.07:23-0.97:114:30Waxing Crescent12Tue
13Wed1:279.31:4410.27:38-0.28:11-1.07:114:31Waxing Crescent13Wed
14Thu2:169.52:3610.08:30-0.39:00-0.97:114:32Waxing Crescent14Thu
15Fri3:089.73:309.89:26-0.49:53-0.87:104:34First Quarter15Fri
16Sat4:029.84:279.410:24-0.410:48-0.57:104:35First Quarter16Sat
17Sun4:599.95:289.111:25-0.411:46-0.37:094:36First Quarter17Sun
18Mon5:589.96:308.812:27-0.47:094:37Waxing Gibbous18Mon
19Tue6:5910.07:338.612:46-0.11:29-0.47:084:38Waxing Gibbous19Tue
20Wed7:5810.08:338.61:450.02:29-0.57:074:40Waxing Gibbous20Wed
21Thu8:5510.09:318.62:420.13:26-0.67:074:41Waxing Gibbous21Thu
22Fri9:5010.010:248.63:380.14:19-0.67:064:42Full Moon22Fri
23Sat10:4010.011:138.64:300.15:08-0.67:054:43Full Moon23Sat
24Sun11:279.811:578.75:180.15:53-0.67:054:45Full Moon24Sun
25Mon12:119.76:040.26:36-0.47:044:46Full Moon25Mon
26Tue12:408.712:539.56:490.37:18-0.37:034:47Waning Gibbous26Tue
27Wed1:218.71:369.27:330.48:00-0.17:024:49Waning Gibbous27Wed
28Thu2:038.62:198.98:170.58:420.27:014:50Waning Gibbous28Thu
29Fri2:468.63:048.69:030.69:260.47:004:51Waning Gibbous29Fri
30Sat3:308.63:518.39:510.810:120.76:594:53Third Quarter30Sat
31Sun4:178.54:418.010:420.911:000.96:584:54Third Quarter31Sun
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 7:23 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 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 First 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