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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 9:08 pm (0.7 ft)
Next high tide : in 3h 06m at 2:54 pm (8.9 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 - Mar 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:158.811:368.45:110.75:360.56:185:32New Moon1Fri
2Sat11:538.85:510.56:120.46:175:33New Moon2Sat
3Sun12:138.712:318.86:300.46:490.46:155:34New Moon3Sun
4Mon12:508.91:118.87:090.37:270.56:135:36Waxing Crescent4Mon
5Tue1:299.01:528.77:510.38:060.56:125:37Waxing Crescent5Tue
6Wed2:119.12:368.58:340.28:480.66:105:38Waxing Crescent6Wed
7Thu2:569.23:248.49:210.39:340.86:085:39First Quarter7Thu
8Fri3:449.24:168.210:130.310:250.96:075:40First Quarter8Fri
9Sat4:389.35:128.111:100.311:230.96:055:42First Quarter9Sat
10Sun5:369.36:128.212:100.26:035:43First Quarter10Sun
11Mon6:369.57:138.412:250.71:100.16:025:44Waxing Gibbous11Mon
12Tue7:379.78:128.81:270.52:08-0.26:005:45Waxing Gibbous12Tue
13Wed8:3610.09:099.32:270.03:04-0.55:585:46Waxing Gibbous13Wed
14Thu9:3410.210:039.83:25-0.43:58-0.85:565:48Full Moon14Thu
15Fri10:2910.410:5510.34:21-0.94:49-1.15:555:49Full Moon15Fri
16Sat11:2110.411:4410.65:14-1.35:38-1.25:535:50Full Moon16Sat
17Sun12:1210.36:05-1.46:26-1.15:515:51Full Moon17Sun
18Mon12:3310.71:0210.16:56-1.47:15-0.95:495:52Waning Gibbous18Mon
19Tue1:2210.71:529.77:47-1.28:04-0.55:485:53Waning Gibbous19Tue
20Wed2:1210.42:429.38:38-0.98:54-0.15:465:55Waning Gibbous20Wed
21Thu3:0210.03:348.89:30-0.49:460.35:445:56Third Quarter21Thu
22Fri3:559.64:288.410:240.010:410.85:425:57Third Quarter22Fri
23Sat4:509.15:258.011:200.411:381.15:415:58Third Quarter23Sat
24Sun5:478.86:237.812:180.75:395:59Third Quarter24Sun
25Mon6:468.67:207.812:361.21:140.95:376:00Waning Crescent25Mon
26Tue7:428.58:137.91:321.32:070.95:356:01Waning Crescent26Tue
27Wed8:348.59:018.12:261.22:560.95:346:03Waning Crescent27Wed
28Thu9:228.59:458.33:151.03:420.85:326:04Waning Crescent28Thu
29Fri10:068.610:268.64:010.84:240.85:306:05New Moon29Fri
30Sat10:478.611:048.84:440.65:030.75:286:06New Moon30Sat
31Sun11:268.711:419.15:240.45:410.75:276:07New Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

Show All
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 6:01 pm — 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