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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 5h 24m at 10:22 pm (1.1 ft)
Next high tide (tomorrow) : 4:26 am (8.9 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Sep 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:029.112:248.76:210.56:360.66:087:17Full Moon1Wed
2Thu12:419.01:008.86:590.67:160.66:097:16Full Moon2Thu
3Fri1:198.91:378.97:360.77:560.66:107:14Waning Gibbous3Fri
4Sat1:578.82:159.08:130.88:360.66:117:12Waning Gibbous4Sat
5Sun2:378.62:559.08:520.99:190.76:127:11Waning Gibbous5Sun
6Mon3:198.43:379.09:321.110:030.86:137:09Waning Gibbous6Mon
7Tue4:048.24:238.910:161.310:520.96:147:07Third Quarter7Tue
8Wed4:538.05:128.911:031.511:441.06:157:05Third Quarter8Wed
9Thu5:457.86:068.811:561.66:167:04Third Quarter9Thu
10Fri6:417.87:038.912:401.012:521.56:177:02Third Quarter10Fri
11Sat7:387.98:009.11:370.91:511.36:187:00Waning Crescent11Sat
12Sun8:358.28:579.42:330.62:481.06:196:58Waning Crescent12Sun
13Mon9:298.79:529.83:270.33:440.56:206:56Waning Crescent13Mon
14Tue10:219.310:4510.14:18-0.14:38-0.16:226:55New Moon14Tue
15Wed11:129.911:3710.35:08-0.45:30-0.66:236:53New Moon15Wed
16Thu12:0110.55:56-0.76:21-1.16:246:51New Moon16Thu
17Fri12:2810.512:5010.96:44-0.97:12-1.46:256:49New Moon17Fri
18Sat1:1810.41:3911.17:32-0.98:04-1.56:266:48Waxing Crescent18Sat
19Sun2:1010.22:3011.18:22-0.88:58-1.36:276:46Waxing Crescent19Sun
20Mon3:029.93:2310.99:14-0.59:52-1.06:286:44Waxing Crescent20Mon
21Tue3:579.54:1810.510:08-0.110:49-0.66:296:42First Quarter21Tue
22Wed4:549.05:1610.111:050.311:48-0.26:306:40First Quarter22Wed
23Thu5:548.66:179.612:060.66:316:39First Quarter23Thu
24Fri6:568.47:209.312:490.21:080.96:326:37First Quarter24Fri
25Sat7:588.38:219.11:490.52:091.06:336:35Waxing Gibbous25Sat
26Sun8:568.39:188.92:470.63:061.06:356:33Waxing Gibbous26Sun
27Mon9:488.410:098.83:400.73:590.96:366:31Waxing Gibbous27Mon
28Tue10:348.610:558.84:270.74:480.86:376:30Waxing Gibbous28Tue
29Wed11:168.711:378.75:100.85:310.66:386:28Full Moon29Wed
30Thu11:538.95:500.86:120.56:396:26Full Moon30Thu
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 1:24 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 72% 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 Waning Gibbous (72% 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