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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 12:26 pm (0.8 ft)
Next high tide : in 2h 27m at 6:12 am (8.5 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jul 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:338.510:4910.44:29-0.44:360.65:088:25New Moon1Sat
2Sun11:288.511:4210.45:24-0.55:290.65:098:24New Moon2Sun
3Mon12:198.56:15-0.46:200.65:108:24New Moon3Mon
4Tue12:3110.21:078.57:04-0.37:100.75:108:24New Moon4Tue
5Wed1:1910.01:538.57:50-0.27:580.85:118:24Waxing Crescent5Wed
6Thu2:059.72:388.58:350.08:450.95:118:23Waxing Crescent6Thu
7Fri2:519.43:238.59:190.29:331.05:128:23Waxing Crescent7Fri
8Sat3:379.14:088.510:020.510:221.15:138:23Waxing Crescent8Sat
9Sun4:248.74:538.510:470.811:121.25:138:22First Quarter9Sun
10Mon5:128.35:418.611:331.15:148:22First Quarter10Mon
11Tue6:048.06:308.612:041.312:211.45:158:21First Quarter11Tue
12Wed6:577.77:218.612:581.31:111.65:168:21First Quarter12Wed
13Thu7:527.58:128.71:531.32:021.75:178:20Waxing Gibbous13Thu
14Fri8:457.49:028.82:461.22:531.85:178:20Waxing Gibbous14Fri
15Sat9:377.49:519.03:381.03:421.75:188:19Waxing Gibbous15Sat
16Sun10:277.510:399.34:280.84:301.65:198:18Waxing Gibbous16Sun
17Mon11:157.711:269.55:150.55:171.45:208:18Full Moon17Mon
18Tue12:008.06:000.36:031.15:218:17Full Moon18Tue
19Wed12:119.812:448.46:440.06:490.85:228:16Full Moon19Wed
20Thu12:5710.01:298.87:27-0.37:360.45:238:15Waning Gibbous20Thu
21Fri1:4410.22:169.28:12-0.48:260.25:248:15Waning Gibbous21Fri
22Sat2:3310.13:049.68:58-0.59:180.05:258:14Waning Gibbous22Sat
23Sun3:249.93:549.99:45-0.410:13-0.25:258:13Waning Gibbous23Sun
24Mon4:179.64:4610.110:35-0.211:10-0.25:268:12Third Quarter24Mon
25Tue5:139.25:4110.111:280.05:278:11Third Quarter25Tue
26Wed6:138.86:3910.112:10-0.112:250.35:288:10Third Quarter26Wed
27Thu7:158.57:4010.11:13-0.11:250.65:298:09Waning Crescent27Thu
28Fri8:188.28:4010.02:150.02:250.75:308:08Waning Crescent28Fri
29Sat9:208.19:3910.03:160.03:240.85:318:07Waning Crescent29Sat
30Sun10:198.110:369.94:140.04:210.85:328:06Waning Crescent30Sun
31Mon11:138.211:289.85:090.05:150.85:338:05New Moon31Mon
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 9:19 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 neap phase. Tonight's moon is 41% 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 near their weekly minimum.

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 Third Quarter (41% illuminated). This places Plum Island Sound, South End, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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