Plum Island tide times

Merrimack River Entrance, MAMerrimack River EntranceNOAA 8440452Wednesday, September 30 · EDTWed Sep 30Predictions onlyChange station
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Today at Plum Island the next low tide is at 9:05 PM (−0.5 ft) and the next high tide is at 2:38 PM (9.4 ft). Tomorrow's first low is at 9:15 AM. Spring tides peak today, so expect bigger highs and lower lows.

Predicted now
2.9 ft ↑
Rising 2.2 ft per hour
Next high
2:38 PM
In 4 h 03 min · 9.4 ft
Next low
9:05 PM
In 10 h 30 min · −0.5 ft
Tide range today
9.9 ft
Spring tides Wednesday
Predictions only. No live gauge at this station.

Today's tide

PredictedNightHeight above MLLW
−2 ft0 ft2 ft4 ft6 ft8 ft10 ftNOW 10:352:24 AMHigh · 8.4 ft8:26 AMLow · 0.3 ft2:38 PMHigh · 9.4 ft9:05 PMLow · −0.5 ft
Tide chart for Plum Island, today. High 8.4 ft at 2:24 AM, low 0.3 ft at 8:26 AM, high 9.4 ft at 2:38 PM, low −0.5 ft at 9:05 PM.

Predicted tide height at Merrimack River Entrance for Wednesday, September 30, in feet above Mean Lower Low Water (MLLW). Shaded areas are night.

Today's tides

ft above MLLW
  • High2:24 AM8.4 ft
  • Low8:26 AM0.3 ft
  • High2:38 PM9.4 ft
  • Low9:05 PM−0.5 ft
Tide times for Plum Island
TideTimeHeight
High2:24 AM8.4 ft
Low8:26 AM0.3 ft
High2:38 PM9.4 ft
Low9:05 PM−0.5 ft
Sunrise
6:40 AM
First light 6:12
Sunset
6:28 PM
Last light 6:56
Moon
82%
Waning gibbous
Tide range
9.9 ft
Spring tides Wed

Best windows today

Plan the week →
  • Fishing
    5:00 to 10:00 PM

    Today's best window (6:00 to 8:00 AM) has passed. Dawn light with the outgoing tide around the 8:26 AM low.

  • Tidepools & shelling
    Next: Thu 7:00 to 11:00 AM
    Earlier today: 7:00 to 10:00 AM

    Today's best window (7:00 to 10:00 AM) has passed.

  • Surfing
    10:00 AM to 12:00 PM

    Mid tide from 10:00 AM to 12:00 PM. No wind sensor at this station.

  • Shallow boat launch
    Avoid 7:00 to 10:00 AM

    Under 1.5 ft around low water. Launch before 7:00 AM.

Plan the week

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

Next 7 days

September calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayWed 30H2:24a8.4L8:26a0.3H2:38p9.4L9:05p−0.59.9 spring tide
ThuOct 1H3:14a8.1L9:15a0.5H3:29p9.3L9:59p−0.39.7 spring tide
FriOct 2H4:09a7.8L10:10a0.7H4:27p9.1L10:59p−0.19.2
SatOct 3H5:10a7.6L11:11a0.9H5:29p8.98.0
SunOct 4L12:02a0.1H6:14a7.5L12:17p1.0H6:35p8.78.7
MonOct 5L1:08a0.2H7:20a7.5L1:25p0.9H7:42p8.78.5
TueOct 6L2:12a0.2H8:24a7.8L2:32p0.7H8:47p8.78.5

Spring tides Wednesday to Thursday. Lows drop to −0.5 ft, the best shelling days this week. Spring and neap tides

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

  • Slack2:49 AM
  • Max ebb4:31 AM 1.4 kn
  • Slack9:13 AM
  • Max flood12:01 PM 2.8 kn
  • Slack3:02 PM
  • Max ebb5:08 PM 1.5 kn
  • Slack9:55 PM

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. From the average lower low to the average higher high, the difference is 8.7 ft. Over the next two weeks the biggest daily range, 9.9 ft, comes today, and the smallest, 8.0 ft, on Saturday.

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 9 min later. For tidal currents, see Merrimack River entrance.

Height unitsftmAdd this tide widget to your site. It's free.Week plannerPrintable September calendar

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.