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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 50m at 7:59 am (-1.1 ft)
Next high tide : 2:03 pm (9.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:04 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Nov 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:439.110:079.13:390.64:050.47:175:35Waxing Gibbous1Wed
2Thu10:309.610:569.34:250.34:53-0.17:185:34Full Moon2Thu
3Fri11:1610.111:449.55:110.15:41-0.67:205:33Full Moon3Fri
4Sat12:0210.65:56-0.16:28-1.07:215:32Full Moon4Sat
5Sun12:329.711:49 AM10.95:42-0.36:17-1.36:224:30Full Moon5Sun
6Mon12:219.812:3811.16:30-0.47:07-1.46:234:29Waning Gibbous6Mon
7Tue1:129.81:2911.17:21-0.38:00-1.36:254:28Waning Gibbous7Tue
8Wed2:059.62:2310.98:15-0.28:55-1.16:264:27Waning Gibbous8Wed
9Thu3:019.53:2010.59:120.09:52-0.96:274:26Third Quarter9Thu
10Fri3:599.34:2010.110:130.210:52-0.66:284:25Third Quarter10Fri
11Sat5:019.25:239.711:160.311:52-0.36:304:24Third Quarter11Sat
12Sun6:039.26:279.412:190.46:314:23Waning Crescent12Sun
13Mon7:049.27:299.212:52-0.11:210.36:324:22Waning Crescent13Mon
14Tue8:019.38:279.01:490.12:200.26:344:21Waning Crescent14Tue
15Wed8:549.59:218.92:420.23:140.16:354:20Waning Crescent15Wed
16Thu9:429.510:108.73:310.34:030.06:364:19New Moon16Thu
17Fri10:259.510:538.64:170.54:480.06:374:18New Moon17Fri
18Sat11:059.511:338.54:590.75:300.06:394:17New Moon18Sat
19Sun11:439.45:390.86:100.16:404:17New Moon19Sun
20Mon12:128.412:219.36:191.06:500.16:414:16Waxing Crescent20Mon
21Tue12:528.31:019.36:591.17:310.36:424:15Waxing Crescent21Tue
22Wed1:328.21:429.17:401.38:140.46:434:14Waxing Crescent22Wed
23Thu2:158.12:269.08:241.48:580.56:454:14Waxing Crescent23Thu
24Fri3:018.13:138.89:111.59:450.66:464:13First Quarter24Fri
25Sat3:498.14:038.710:011.510:340.76:474:13First Quarter25Sat
26Sun4:398.14:568.510:541.511:260.86:484:12First Quarter26Sun
27Mon5:328.35:518.511:511.46:494:12First Quarter27Mon
28Tue6:258.56:478.512:180.812:471.16:504:11Waxing Gibbous28Tue
29Wed7:178.97:428.61:100.71:410.66:514:11Waxing Gibbous29Wed
30Thu8:089.48:368.82:000.52:340.16:534:10Waxing Gibbous30Thu
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 11:01 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 9% 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 Waxing Crescent (9% 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