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 - Mar 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:318.312:478.86:440.77:070.56:185:32Waning Gibbous1Sat
2Sun1:078.51:268.77:230.67:440.66:165:33Waning Gibbous2Sun
3Mon1:468.72:078.58:040.58:210.76:145:35Waning Gibbous3Mon
4Tue2:268.82:518.38:480.59:020.96:135:36Waning Gibbous4Tue
5Wed3:108.93:388.19:340.59:461.16:115:37Third Quarter5Wed
6Thu3:578.94:307.910:260.610:361.26:095:38Third Quarter6Thu
7Fri4:499.05:277.711:230.611:331.36:085:39Third Quarter7Fri
8Sat5:479.06:277.712:240.56:065:41Third Quarter8Sat
9Sun7:489.28:287.812:351.22:260.37:046:42Waning Crescent9Sun
10Mon8:499.59:288.22:361.03:250.07:036:43Waning Crescent10Mon
11Tue9:489.910:258.73:370.64:21-0.47:016:44Waning Crescent11Tue
12Wed10:4610.211:199.34:350.05:14-0.76:596:45New Moon12Wed
13Thu11:4010.45:31-0.56:05-1.06:576:47New Moon13Thu
14Fri12:109.812:3310.56:24-0.96:53-1.16:566:48New Moon14Fri
15Sat12:5910.21:2310.47:16-1.27:40-1.16:546:49Waxing Crescent15Sat
16Sun1:4710.52:1410.18:07-1.38:28-0.86:526:50Waxing Crescent16Sun
17Mon2:3610.53:059.78:59-1.29:17-0.56:516:51Waxing Crescent17Mon
18Tue3:2510.43:569.29:51-0.910:070.06:496:52Waxing Crescent18Tue
19Wed4:1610.04:498.610:45-0.410:590.56:476:54First Quarter19Wed
20Thu5:099.65:458.111:400.011:541.06:456:55First Quarter20Thu
21Fri6:059.16:447.712:390.56:446:56First Quarter21Fri
22Sat7:048.87:447.512:531.31:380.86:426:57First Quarter22Sat
23Sun8:048.68:437.51:521.52:370.96:406:58Waxing Gibbous23Sun
24Mon9:028.59:377.62:501.53:311.06:386:59Waxing Gibbous24Mon
25Tue9:558.510:267.73:441.44:210.96:367:01Waxing Gibbous25Tue
26Wed10:428.611:098.04:331.35:050.86:357:02Waxing Gibbous26Wed
27Thu11:258.611:478.25:191.05:450.86:337:03Full Moon27Thu
28Fri12:058.76:000.86:230.86:317:04Full Moon28Fri
29Sat12:238.512:438.76:400.66:580.86:297:05Full Moon29Sat
30Sun12:598.81:218.77:180.57:340.86:287:06Full Moon30Sun
31Mon1:359.02:008.67:570.38:100.96:267:07Waning Gibbous31Mon
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