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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 10:22 pm (1.1 ft)
Next high tide : in 2h 13m at 4:10 pm (8.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Dec 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:579.85:510.76:27-0.36:544:10Full Moon1Sun
2Mon12:318.312:399.66:330.97:10-0.16:554:10Waning Gibbous2Mon
3Tue1:138.21:219.47:171.17:540.16:564:09Waning Gibbous3Tue
4Wed1:568.02:059.18:011.38:390.46:574:09Waning Gibbous4Wed
5Thu2:417.92:528.98:481.49:250.66:584:09Waning Gibbous5Thu
6Fri3:287.83:408.69:371.610:130.86:594:09Third Quarter6Fri
7Sat4:177.84:328.410:301.611:030.97:004:09Third Quarter7Sat
8Sun5:097.95:268.211:251.611:541.07:004:09Third Quarter8Sun
9Mon6:018.06:218.012:211.57:014:09Third Quarter9Mon
10Tue6:528.37:158.012:441.11:151.27:024:09Waning Crescent10Tue
11Wed7:408.68:078.01:331.12:070.97:034:09Waning Crescent11Wed
12Thu8:279.08:578.12:201.02:570.57:044:09Waning Crescent12Thu
13Fri9:139.49:468.23:060.93:450.17:054:09Waning Crescent13Fri
14Sat9:599.810:338.43:520.84:32-0.37:054:10New Moon14Sat
15Sun10:4510.111:218.64:370.65:19-0.77:064:10New Moon15Sun
16Mon11:3210.45:240.46:06-0.97:074:10New Moon16Mon
17Tue12:098.812:2110.66:120.26:55-1.17:074:10Waxing Crescent17Tue
18Wed12:598.91:1310.67:030.17:46-1.17:084:11Waxing Crescent18Wed
19Thu1:519.02:0710.57:570.18:39-1.07:094:11Waxing Crescent19Thu
20Fri2:459.13:0310.28:540.19:33-0.87:094:12First Quarter20Fri
21Sat3:419.24:019.89:550.110:29-0.67:104:12First Quarter21Sat
22Sun4:399.35:029.410:570.111:27-0.37:104:13First Quarter22Sun
23Mon5:399.46:059.012:010.17:114:13First Quarter23Mon
24Tue6:389.57:088.712:25-0.11:030.07:114:14Waxing Gibbous24Tue
25Wed7:369.68:088.41:220.22:03-0.17:114:14Waxing Gibbous25Wed
26Thu8:309.79:058.32:160.43:00-0.27:124:15Waxing Gibbous26Thu
27Fri9:229.79:588.23:090.53:52-0.27:124:16Waxing Gibbous27Fri
28Sat10:109.610:458.13:590.74:40-0.27:124:16Full Moon28Sat
29Sun10:549.511:288.04:450.85:25-0.17:124:17Full Moon29Sun
30Mon11:369.45:290.96:070.07:134:18Full Moon30Mon
31Tue12:097.912:169.36:101.06:470.17:134:19Full Moon31Tue
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 7:16 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 transitional phase. Tonight's moon is 72% 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 Waning Gibbous (72% 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