Plum Island Tide Times and Tide Chart, MA

Today's tide

0 ft2 ft4 ft6 ft8 ftNOW 7:191:14 AMLow · 1.2 ft7:26 AMHigh · 6.9 ft1:31 PMLow · 1.8 ft7:42 PMHigh · 7.5 ft

Predicted tide height at Merrimack River Entrance for Tuesday, October 20, in feet above Mean Lower Low Water (MLLW). Shaded areas are night.

Today's tides

ft above MLLW

Low1:14 AM1.2 ft
High7:26 AM6.9 ft
Low1:31 PM1.8 ft
High7:42 PM7.5 ft

Tide times for Plum Island
Tide	Time	Height
Low	1:14 AM	1.2 ft
High	7:26 AM	6.9 ft
Low	1:31 PM	1.8 ft
High	7:42 PM	7.5 ft

Sunrise

7:03 AM

First light 6:34

Sunset

5:54 PM

Last light 6:23

Moon

69%

Waxing gibbous

Tide range

6.3 ft

Mean 8.0 ft

Best windows today

Plan the week →

Fishing
8:00 to 9:00 PM
Today's best window (6:00 to 7:00 AM) has passed. Dawn light with the incoming tide around the 7:26 AM high. Second window 6:00 to 7:00 PM.
Tidepools & shelling
Next: Wed 1:00 to 4:00 PM
Earlier today: 1:00 to 2:00 PM
Today's best window (1:00 to 2:00 PM) has passed.
Surfing
Next: Wed 5:00 to 6:00 PM
Earlier today: 3:00 to 5:00 PM
Today's best window (3:00 to 5:00 PM) has passed.
Shallow boat launch
Avoid 12:00 to 2:00 AM
Water drops under 1.5 ft from 12:00 to 2:00 AM. Plan to be back on the trailer before then.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

October calendar →

High and low tides for the next 7 days, heights in ft
Day	Tide 1	Tide 2	Tide 3	Tide 4	Range, ft
TodayTue 20	L1:14a1.2	H7:26a6.9	L1:31p1.8	H7:42p7.5	6.3
WedOct 21	L2:08a1.1	H8:19a7.2	L2:28p1.5	H8:37p7.7	6.6
ThuOct 22	L2:57a0.9	H9:08a7.6	L3:19p1.1	H9:28p7.8	6.9
FriOct 23	L3:43a0.8	H9:53a8.0	L4:07p0.6	H10:15p8.0	7.4
SatOct 24	L4:25a0.6	H10:35a8.5	L4:52p0.1	H11:00p8.2	8.4
SunOct 25	L5:06a0.4	H11:16a8.9	L5:37p−0.3	H11:45p8.3	9.2
MonOct 26	L5:48a0.3	H11:58a9.3	L6:22p−0.7		10.0

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 8440452.

Nearby stations

Currents

Merrimack River entrance

Current predictions are delayed. Try again soon.

Current predictions for Merrimack River entrance, 0.5 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum: Mean lower low water
Predictions: NOAA, from this station's own tide records
Live gauge: None
Coordinates: 42.817° N, 70.820° W
Time zone: Eastern, UTC−4
Station ID: NOAA 8440452

About the tides at Plum Island

Expect two roughly equal high tides a day at Merrimack River Entrance, each arriving about 50 minutes later than the day before. With a mean range of about 8.0 ft, the shoreline here changes a lot between high and low water. That is larger than most Massachusetts stations on this site. From the average lower low to the average higher high, the difference is 8.7 ft. Looking a year ahead, predictions peak at 10.1 ft on July 6 and bottom out at −1.4 ft on January 23.

Predictions for Plum Island come from this station's own tide records. There is no live sensor, so the table shows forecast only. NOAA measured the tide here in 1989 to set up these predictions. The nearest other station is Newburyport, 3 mi away, where high tide comes about 7 min later. For tidal currents, see Merrimack River entrance.

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Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.

Plum Island tide times