NOAA station 8441241, Massachusetts
Plum Island Sound (south end) tide chart
Thursday, October 15Eastern Daylight Time
NOAA harmonic station (NOAA’s page for this station, opens in a new tab)Rising, about 8.1 ft now
As of 2:54 AM EDT
- Next
- High 8.1 ft at 3:04 AMin 10m
- Then
- Low 1.4 ft at 9:11 AMin 6h 17m
- Next
High
3:04 AM
8.1 ft
Low
9:11 AM
1.4 ft
High
3:15 PM
9.1 ft
Low
9:47 PM
0.6 ft
The week ahead
This week’s tides at Plum Island Sound (south end)
Every high and low for the next seven days, in feet above MLLW. The 30-day table below has the rest of the month.
| Day | Tide curve | Highs | Lows | Range |
|---|---|---|---|---|
| Thu, Oct 15Range 8.5 ft | 3:04 AM 8.1 ft3:15 PM 9.1 ft | 9:11 AM 1.4 ft9:47 PM 0.6 ft | 8.5 ft | |
| Fri, Oct 16Range 8.0 ft | 3:49 AM 7.9 ft4:02 PM 8.9 ft | 9:56 AM 1.6 ft10:36 PM 0.9 ft | 8.0 ft | |
| Sat, Oct 17Range 7.5 ft | 4:38 AM 7.6 ft4:52 PM 8.6 ft | 10:46 AM 1.8 ft11:27 PM 1.1 ft | 7.5 ft | |
| Sun, Oct 18Range 6.4 ft | 5:30 AM 7.5 ft5:46 PM 8.4 ft | 11:39 AM 2.0 ft | 6.4 ft | |
| Mon, Oct 19Range 7.0 ft | 6:25 AM 7.4 ft6:43 PM 8.3 ft | 12:22 AM 1.3 ft12:37 PM 2.0 ft | 7.0 ft | |
| Tue, Oct 20Range 7.0 ft | 7:21 AM 7.6 ft7:39 PM 8.3 ft | 1:17 AM 1.3 ft1:34 PM 1.9 ft | 7.0 ft | |
| Wed, Oct 21Range 7.2 ft | 8:14 AM 7.8 ft8:34 PM 8.4 ft | 2:10 AM 1.2 ft2:29 PM 1.6 ft | 7.2 ft |
See this tide on Pathr’s chart. Free on iPhone and Android.
Plum Island Sound (south end) tide table for the next 30 days
Every high and low for the next month, with the daily tidal range.
| Day | Highs | Lows | Range |
|---|---|---|---|
| Thu, Oct 15Range 8.5 ft | 3:04 AM 8.1 ft3:15 PM 9.1 ft | 9:11 AM 1.4 ft9:47 PM 0.6 ft | 8.5 ft |
| Fri, Oct 16Range 8.0 ft | 3:49 AM 7.9 ft4:02 PM 8.9 ft | 9:56 AM 1.6 ft10:36 PM 0.9 ft | 8.0 ft |
| Sat, Oct 17Range 7.5 ft | 4:38 AM 7.6 ft4:52 PM 8.6 ft | 10:46 AM 1.8 ft11:27 PM 1.1 ft | 7.5 ft |
| Sun, Oct 18Range 6.4 ft | 5:30 AM 7.5 ft5:46 PM 8.4 ft | 11:39 AM 2.0 ft | 6.4 ft |
| Mon, Oct 19Range 7.0 ft | 6:25 AM 7.4 ft6:43 PM 8.3 ft | 12:22 AM 1.3 ft12:37 PM 2.0 ft | 7.0 ft |
| Tue, Oct 20Range 7.0 ft | 7:21 AM 7.6 ft7:39 PM 8.3 ft | 1:17 AM 1.3 ft1:34 PM 1.9 ft | 7.0 ft |
| Wed, Oct 21Range 7.2 ft | 8:14 AM 7.8 ft8:34 PM 8.4 ft | 2:10 AM 1.2 ft2:29 PM 1.6 ft | 7.2 ft |
| Thu, Oct 22Range 7.4 ft | 9:03 AM 8.2 ft9:25 PM 8.5 ft | 2:59 AM 1.1 ft3:21 PM 1.2 ft | 7.4 ft |
| Fri, Oct 23Range 8.0 ft | 9:49 AM 8.7 ft10:13 PM 8.7 ft | 3:45 AM 0.9 ft4:10 PM 0.7 ft | 8.0 ft |
| Sat, Oct 24Range 9.0 ft | 10:33 AM 9.2 ft11:00 PM 8.9 ft | 4:29 AM 0.8 ft4:57 PM 0.2 ft | 9.0 ft |
| Sun, Oct 25Range 9.9 ft | 11:16 AM 9.7 ft11:46 PM 9.0 ft | 5:12 AM 0.6 ft5:43 PM -0.2 ft | 9.9 ft |
| Mon, Oct 26Range 10.8 ft | 12:00 PM 10.2 ft | 5:54 AM 0.4 ft6:28 PM -0.6 ft | 10.8 ft |
| Tue, Oct 27Range 11.4 ft | 12:32 AM 9.1 ft12:45 PM 10.5 ft | 6:37 AM 0.3 ft7:15 PM -0.9 ft | 11.4 ft |
| Wed, Oct 28Range 11.6 ft | 1:19 AM 9.2 ft1:32 PM 10.7 ft | 7:23 AM 0.3 ft8:04 PM -0.9 ft | 11.6 ft |
Show days 15 to 30Hide days 15 to 30 | |||
| Thu, Oct 29Range 11.6 ft | 2:08 AM 9.1 ft2:22 PM 10.7 ft | 8:12 AM 0.3 ft8:56 PM -0.9 ft | 11.6 ft |
| Fri, Oct 30Range 11.3 ft | 3:01 AM 9.0 ft3:16 PM 10.6 ft | 9:05 AM 0.4 ft9:51 PM -0.7 ft | 11.3 ft |
| Sat, Oct 31Range 10.7 ft | 3:56 AM 8.8 ft4:14 PM 10.3 ft | 10:03 AM 0.5 ft10:49 PM -0.4 ft | 10.7 ft |
| Sun, Nov 1Range 10.0 ft | 3:55 AM 8.7 ft4:15 PM 9.9 ft | 10:04 AM 0.7 ft10:50 PM -0.1 ft | 10.0 ft |
| Mon, Nov 2Range 9.6 ft | 4:57 AM 8.6 ft5:20 PM 9.6 ft | 11:10 AM 0.7 ft11:51 PM 0.0 ft | 9.6 ft |
| Tue, Nov 3Range 8.6 ft | 6:01 AM 8.7 ft6:25 PM 9.3 ft | 12:16 PM 0.7 ft | 8.6 ft |
| Wed, Nov 4Range 8.9 ft | 7:03 AM 9.0 ft7:28 PM 9.1 ft | 12:51 AM 0.2 ft1:20 PM 0.5 ft | 8.9 ft |
| Thu, Nov 5Range 8.9 ft | 8:00 AM 9.2 ft8:27 PM 8.9 ft | 1:48 AM 0.3 ft2:20 PM 0.3 ft | 8.9 ft |
| Fri, Nov 6Range 9.4 ft | 8:53 AM 9.5 ft9:22 PM 8.8 ft | 2:41 AM 0.4 ft3:15 PM 0.1 ft | 9.4 ft |
| Sat, Nov 7Range 9.6 ft | 9:40 AM 9.6 ft10:11 PM 8.6 ft | 3:30 AM 0.5 ft4:05 PM 0.0 ft | 9.6 ft |
| Sun, Nov 8Range 9.7 ft | 10:24 AM 9.6 ft10:56 PM 8.5 ft | 4:16 AM 0.7 ft4:50 PM -0.1 ft | 9.7 ft |
| Mon, Nov 9Range 9.6 ft | 11:05 AM 9.6 ft11:37 PM 8.3 ft | 4:58 AM 0.9 ft5:33 PM 0.0 ft | 9.6 ft |
| Tue, Nov 10Range 9.4 ft | 11:43 AM 9.5 ft | 5:39 AM 1.1 ft6:13 PM 0.1 ft | 9.4 ft |
| Wed, Nov 11Range 9.0 ft | 12:16 AM 8.1 ft12:22 PM 9.3 ft | 6:18 AM 1.2 ft6:54 PM 0.3 ft | 9.0 ft |
| Thu, Nov 12Range 8.8 ft | 12:56 AM 8.0 ft1:03 PM 9.2 ft | 6:58 AM 1.4 ft7:35 PM 0.4 ft | 8.8 ft |
| Fri, Nov 13Range 8.4 ft | 1:37 AM 7.9 ft1:45 PM 9.0 ft | 7:40 AM 1.5 ft8:19 PM 0.6 ft | 8.4 ft |
Conditions at Plum Island Sound (south end)
From the National Weather Service forecast for this spot and the nearest water temperature reading, with today's sunrise and sunset.
Any date, past or future
Plan another date
Pick a date to see the tide curve, the highs and lows and sunrise and sunset at Plum Island Sound (south end).
Choose a date above to draw its tide chart.
About Plum Island Sound (south end) tides
Plum Island Sound (south end) is a NOAA harmonic tide station (8441241): its predictions come from the tidal constituents NOAA derived from water levels measured at this spot. Heights are in feet above MLLW (Mean Lower Low Water), the datum of US nautical charts, so they line up with charted depths.
In the next 30 days, Plum Island Sound (south end) has two highs and two lows on 26 days and three turns on 4 days, and the daily range runs from 6.4 to 11.6 ft. That is a semidiurnal tide: two highs and two lows a day, each pair close in height.
Use the curve above to time a harbor entrance, a beach walk, fishing a moving tide or clearing a shallow bar, and remember that wind, air pressure and river flow can push the real water level above or below the prediction. The daily tidal range in the tables shows how much water moves each day: bigger ranges around the new and full moon mean stronger currents.
The latest water temperature near Plum Island Sound (south end) is about 58°F, from NDBC buoy 44029, 17 mi away, at 11:00 PM EDT on Wed, Oct 14. Water temperature shapes where fish hold and feed, and tells you what to wear in the water, so check it alongside the tide before you head out.
Frequently asked
What time is high tide in Plum Island Sound (south end) today?+
Today (Thursday, October 15), high tide at Plum Island Sound (south end) is at 3:04 AM (8.1 ft), 3:15 PM (9.1 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Plum Island Sound (south end) today?+
Today, low tide at Plum Island Sound (south end) is at 9:11 AM (1.4 ft), 9:47 PM (0.6 ft).
What tidal datum do these Plum Island Sound (south end) tide heights use?+
All heights are given in feet relative to MLLW (Mean Lower Low Water), the standard NOAA chart datum for US tidal waters. A tide of 0.0 ft equals the chart datum; negative tides fall below it.
How accurate are these tide predictions?+
Plum Island Sound (south end) is a NOAA harmonic station (8441241), so these are NOAA's harmonic predictions for this spot, which are very accurate for the astronomical tide. Real water levels can still differ with wind, air pressure and river flow, so check conditions before you get underway.
What is the water temperature at Plum Island Sound (south end)?+
The latest water temperature near Plum Island Sound (south end) is about 58°F, from NDBC buoy 44029, 17 mi away, at 11:00 PM EDT on Wed, Oct 14. Water temperature drives fish behavior and tells you what to wear in the water, so it's worth checking alongside the tide.
Nearby tide stations
Bridge clearances near Plum Island Sound (south end)
Vertical clearance and drawbridge opening schedules for the bridges closest to Plum Island Sound (south end). Check them against your air draft before you head out.

