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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 1:57 am (0.7 ft)
Next high tide : in 5h 18m at 7:31 pm (9.2 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 - Aug 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:108.44:338.810:261.010:571.05:348:04Third Quarter1Sun
2Mon4:578.25:218.811:111.211:481.15:358:02Third Quarter2Mon
3Tue5:487.96:118.912:001.45:378:01Third Quarter3Tue
4Wed6:437.77:059.012:441.112:531.55:388:00Third Quarter4Wed
5Thu7:407.78:019.21:410.91:491.45:397:59Waning Crescent5Thu
6Fri8:377.88:579.52:380.72:451.35:407:57Waning Crescent6Fri
7Sat9:338.19:529.93:330.43:410.95:417:56Waning Crescent7Sat
8Sun10:288.510:4710.34:270.04:360.55:427:55New Moon8Sun
9Mon11:209.011:4010.65:18-0.55:300.05:437:53New Moon9Mon
10Tue12:119.56:08-0.86:22-0.55:447:52New Moon10Tue
11Wed12:3110.81:0110.06:56-1.07:15-0.85:457:51New Moon11Wed
12Thu1:2310.81:5010.47:44-1.18:08-1.05:467:49Waxing Crescent12Thu
13Fri2:1510.62:4110.68:34-1.09:02-1.05:477:48Waxing Crescent13Fri
14Sat3:0710.23:3310.69:24-0.89:57-0.85:487:46Waxing Crescent14Sat
15Sun4:019.74:2610.510:16-0.410:53-0.55:497:45First Quarter15Sun
16Mon4:579.25:2210.211:100.011:52-0.25:507:43First Quarter16Mon
17Tue5:568.66:209.812:070.55:517:42First Quarter17Tue
18Wed6:578.27:219.512:530.21:060.85:537:40Waxing Gibbous18Wed
19Thu7:598.08:219.31:540.42:061.15:547:39Waxing Gibbous19Thu
20Fri8:597.89:189.12:530.63:031.25:557:37Waxing Gibbous20Fri
21Sat9:547.810:119.13:490.73:581.25:567:36Waxing Gibbous21Sat
22Sun10:447.910:589.04:390.74:471.25:577:34Full Moon22Sun
23Mon11:278.111:419.05:240.75:321.15:587:33Full Moon23Mon
24Tue12:068.26:040.66:141.05:597:31Full Moon24Tue
25Wed12:209.012:428.46:410.76:540.96:007:29Full Moon25Wed
26Thu12:578.91:188.67:170.77:330.86:017:28Full Moon26Thu
27Fri1:358.81:548.87:530.88:130.76:027:26Waning Gibbous27Fri
28Sat2:148.72:338.98:300.98:540.76:037:24Waning Gibbous28Sat
29Sun2:558.63:139.09:091.09:370.76:047:23Waning Gibbous29Sun
30Mon3:398.43:579.09:491.110:230.86:057:21Waning Gibbous30Mon
31Tue4:258.14:449.010:341.311:140.86:067:19Third 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 10:44 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 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