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 39m 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 - Apr 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:3710.61:0410.46:57-1.47:19-1.06:247:09Full Moon1Wed
2Thu1:2510.81:5410.27:48-1.48:07-0.86:227:10Waning Gibbous2Thu
3Fri2:1410.72:449.88:39-1.38:56-0.56:207:11Waning Gibbous3Fri
4Sat3:0310.53:359.49:30-1.09:470.06:197:12Waning Gibbous4Sat
5Sun3:5410.24:278.910:22-0.510:390.46:177:14Third Quarter5Sun
6Mon4:469.75:228.511:16-0.111:330.86:157:15Third Quarter6Mon
7Tue5:419.36:188.112:120.36:137:16Third Quarter7Tue
8Wed6:388.97:177.912:301.21:100.76:127:17Third Quarter8Wed
9Thu7:378.68:147.91:281.42:070.86:107:18Waning Crescent9Thu
10Fri8:348.59:088.02:251.43:000.96:087:19Waning Crescent10Fri
11Sat9:278.59:578.13:191.33:500.96:077:20Waning Crescent11Sat
12Sun10:168.510:418.34:101.14:360.96:057:22Waning Crescent12Sun
13Mon11:018.611:228.64:560.95:190.86:037:23New Moon13Mon
14Tue11:428.75:390.75:580.86:027:24New Moon14Tue
15Wed12:008.812:228.76:200.56:360.86:007:25New Moon15Wed
16Thu12:379.11:018.76:590.37:130.85:587:26New Moon16Thu
17Fri1:149.31:408.77:390.27:510.85:577:27Waxing Crescent17Fri
18Sat1:539.42:228.78:200.18:310.95:557:28Waxing Crescent18Sat
19Sun2:359.63:078.79:030.09:140.95:547:30Waxing Crescent19Sun
20Mon3:219.63:558.69:500.010:011.05:527:31Waxing Crescent20Mon
21Tue4:109.64:478.510:410.010:541.05:517:32First Quarter21Tue
22Wed5:049.65:438.511:370.111:531.05:497:33First Quarter22Wed
23Thu6:029.66:428.612:360.15:487:34First Quarter23Thu
24Fri7:049.67:438.912:560.91:360.05:467:35First Quarter24Fri
25Sat8:069.68:429.31:590.62:35-0.15:457:36Waxing Gibbous25Sat
26Sun9:079.89:399.73:000.23:31-0.35:437:38Waxing Gibbous26Sun
27Mon10:069.910:3410.23:59-0.34:26-0.55:427:39Waxing Gibbous27Mon
28Tue11:0210.011:2510.64:55-0.75:17-0.65:407:40Full Moon28Tue
29Wed11:5510.05:48-1.16:07-0.55:397:41Full Moon29Wed
30Thu12:1410.812:459.96:39-1.26:55-0.45:377:42Full Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

Show All
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