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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 03m at 9:08 pm (0.7 ft)
Next high tide (tomorrow) : 3:12 am (9.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jul 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:458.46:148.912:041.05:088:25Third Quarter1Sun
2Mon6:398.27:069.212:401.012:551.05:098:24Third Quarter2Mon
3Tue7:358.27:599.51:360.81:481.05:098:24Waning Crescent3Tue
4Wed8:318.28:539.82:320.52:410.95:108:24Waning Crescent4Wed
5Thu9:288.49:4710.23:270.13:360.75:118:24Waning Crescent5Thu
6Fri10:238.710:4210.64:22-0.34:300.45:118:23New Moon6Fri
7Sat11:179.011:3510.95:16-0.75:240.05:128:23New Moon7Sat
8Sun12:109.46:08-1.06:18-0.35:138:23New Moon8Sun
9Mon12:2811.11:029.76:58-1.37:12-0.55:138:22New Moon9Mon
10Tue1:2111.11:5510.07:49-1.38:06-0.65:148:22Waxing Crescent10Tue
11Wed2:1411.02:4710.28:40-1.39:02-0.65:158:21Waxing Crescent11Wed
12Thu3:0810.63:4010.29:32-1.19:58-0.55:168:21Waxing Crescent12Thu
13Fri4:0310.14:3410.210:24-0.710:55-0.35:168:20First Quarter13Fri
14Sat4:589.65:2910.011:17-0.311:53-0.15:178:20First Quarter14Sat
15Sun5:569.06:259.812:120.15:188:19First Quarter15Sun
16Mon6:558.57:229.612:520.21:080.55:198:18First Quarter16Mon
17Tue7:558.28:189.41:510.42:040.95:208:18Waxing Gibbous17Tue
18Wed8:528.09:129.32:480.52:581.15:218:17Waxing Gibbous18Wed
19Thu9:467.810:039.23:420.63:501.25:228:16Waxing Gibbous19Thu
20Fri10:367.810:499.24:330.64:391.35:238:15Waxing Gibbous20Fri
21Sat11:217.911:329.25:190.65:241.35:238:14Full Moon21Sat
22Sun12:027.96:010.66:071.25:248:14Full Moon22Sun
23Mon12:139.212:418.16:400.56:471.25:258:13Full Moon23Mon
24Tue12:519.21:188.37:190.57:281.15:268:12Full Moon24Tue
25Wed1:309.21:578.47:570.58:081.05:278:11Waning Gibbous25Wed
26Thu2:109.12:378.68:350.58:500.95:288:10Waning Gibbous26Thu
27Fri2:529.03:188.89:140.69:340.95:298:09Waning Gibbous27Fri
28Sat3:368.84:029.09:550.610:210.85:308:08Waning Gibbous28Sat
29Sun4:238.74:489.110:390.811:110.85:318:07Third Quarter29Sun
30Mon5:138.45:389.211:260.95:328:06Third Quarter30Mon
31Tue6:078.36:329.412:060.712:191.05:338:05Third 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 12:10 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 spring phase. Tonight's moon is 84% 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 maximum.

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 (84% illuminated). This places Plum Island Sound, South End, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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