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

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 42m at 11:14 pm (1.0 ft)
Next high tide (tomorrow) : 5:17 am (8.7 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:158.610:379.04:070.74:270.85:367:44Waxing Gibbous1Sun
2Mon11:038.511:189.14:560.55:100.95:357:45Full Moon2Mon
3Tue11:458.411:559.15:400.45:501.15:337:46Full Moon3Tue
4Wed12:248.36:200.46:281.25:327:47Full Moon4Wed
5Thu12:329.21:028.26:590.47:061.45:317:48Full Moon5Thu
6Fri1:089.21:408.17:380.47:431.55:297:49Waning Gibbous6Fri
7Sat1:469.22:198.08:180.58:221.65:287:50Waning Gibbous7Sat
8Sun2:269.13:017.98:590.69:041.75:277:51Waning Gibbous8Sun
9Mon3:109.03:467.89:430.79:491.85:267:52Waning Gibbous9Mon
10Tue3:568.94:347.710:300.810:371.95:257:54Waning Gibbous10Tue
11Wed4:458.85:257.711:200.911:311.95:247:55Third Quarter11Wed
12Thu5:398.76:187.912:131.05:227:56Third Quarter12Thu
13Fri6:358.77:138.212:291.71:060.95:217:57Third Quarter13Fri
14Sat7:328.78:068.71:281.41:590.85:207:58Waning Crescent14Sat
15Sun8:298.88:589.22:261.02:500.65:197:59Waning Crescent15Sun
16Mon9:259.09:489.83:210.43:400.55:188:00Waning Crescent16Mon
17Tue10:199.110:3810.44:15-0.24:300.35:178:01Waning Crescent17Tue
18Wed11:139.311:2910.85:08-0.75:190.15:168:02New Moon18Wed
19Thu12:059.36:00-1.16:090.05:168:03New Moon19Thu
20Fri12:1911.112:579.46:52-1.37:000.05:158:04New Moon20Fri
21Sat1:1011.21:499.37:44-1.37:520.15:148:05Waxing Crescent21Sat
22Sun2:0311.12:439.18:37-1.18:470.25:138:06Waxing Crescent22Sun
23Mon2:5810.83:389.09:32-0.99:440.45:128:07Waxing Crescent23Mon
24Tue3:5410.44:358.810:28-0.510:430.75:128:08First Quarter24Tue
25Wed4:529.95:338.711:24-0.111:440.95:118:09First Quarter25Wed
26Thu5:539.46:338.712:210.25:108:10First Quarter26Thu
27Fri6:548.97:318.812:471.01:180.55:108:10First Quarter27Fri
28Sat7:548.68:258.91:481.02:120.85:098:11Waxing Gibbous28Sat
29Sun8:518.39:159.02:450.93:031.05:088:12Waxing Gibbous29Sun
30Mon9:448.110:019.03:390.83:511.25:088:13Waxing Gibbous30Mon
31Tue10:328.010:449.14:280.74:351.35:078:14Waxing Gibbous31Tue
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 2:15 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 62% 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 Third Quarter (62% 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