Plum Island, Merrimack River Entrance Tides Today
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Plum Island, Merrimack River Entrance runs a mean tidal range of about 7.8 ft. This month the highest water, 10.0 ft, comes on the afternoon of Nov 26, and the lowest, a -1.2 ft minus tide, on the evening of Nov 26.
| High tide | 6:02 AM | 7.9 ft |
| Low tide | 12:12 PM | 0.8 ft |
| High tide | 6:24 PM | 8.4 ft |
Today on the water at Plum Island, Merrimack River Entrance
Today at Plum Island, Merrimack River Entrance: high tide at 6:02 AM (7.9 ft) and 6:24 PM (8.4 ft), low tide at 12:12 PM (0.8 ft). The National Weather Service forecast for Tuesday is partly sunny with S winds 5 mph, 66°F. Sunrise is at 6:18 AM and sunset at 4:34 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Mostly Cloudy | W 6 mph | 50°F |
| Tuesday | Partly Sunny | S 5 mph | 66°F |
Forecast: National Weather Service point forecast for this location.
Where Plum Island, Merrimack River Entrance is
Plum Island, Merrimack River Entrance sits at 42.8167° N, 70.8200° W on the Gulf of Maine, at Newburyport, MA, in Essex County. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1989 until 1989, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Seavey Island (NOAA 8419870), 18.6 mi away, and high and low water here run on average about 10 min later than there. The nearest weather station is Greenland, Great Bay Reserve, NH, a shore station reporting wind and, at most sites, water temperature, 16.7 mi away.
The tide at Plum Island, Merrimack River Entrance
Plum Island, Merrimack River Entrance has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 8.7 ft, and 8.0 ft between the average high and the average low, a large tide. On an average day the higher high tops the lower high by 0.4 ft and the lower low sits 0.3 ft below the other low. For the water around it: Gulf of Maine tides are semidiurnal and large, 9 ft at Boston rising past 18 ft toward the Bay of Fundy.
About this station
- High tide reaches Plum Island, Merrimack River Entrance about 4.0 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Plum Island, Merrimack River Entrance from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 8.7 ft above it and mean sea level 4.3 ft. These datums are controlled from NOAA's Newburyport, Merrimack River, Ma gauge. Source: NOAA CO-OPS station 8440452, established 1989, gauge removed 1989. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near Plum Island, Merrimack River Entrance
- Newburyport: 2.7 mi, tides about 15 min later
- Salisbury Point: 4.7 mi, tides about 38 min later
- Plum Island Sound (south end): 7.5 mi, tides at about the same time
- Merrimacport: 8.5 mi, tides about 75 min later
- Essex: 13.0 mi, tides at about the same time
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Plum Island, Merrimack River Entrance this month: Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28, Nov 29. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Plum Island, Merrimack River Entrance this month: Nov 1, Nov 7, Nov 8, Nov 9, Nov 10, Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28 …. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Plum Island, Merrimack River Entrance, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌗 | 6:08–8:08 AM 6:33–8:33 PM | 11:06–1:06 AM 12:56–2:56 PM | 47 |
| Wed Nov 4 🌗 | 6:56–8:56 AM 7:21–9:21 PM | 12:21–2:21 AM 1:18–3:18 PM | 61 |
| Thu Nov 5 🌘 | 7:42–9:42 AM 8:07–10:07 PM | 1:33–3:33 AM 1:39–3:39 PM | 73 |
| Fri Nov 6 🌘 | 8:27–10:27 AM 8:52–10:52 PM | 2:43–4:43 AM 2:00–4:00 PM | 83 |
| Sat Nov 7 🌘 | 9:12–11:12 AM 9:37–11:37 PM | 3:53–5:53 AM 2:22–4:22 PM | 91 |
| Sun Nov 8 🌘 | 9:58–11:58 AM 10:23–12:23 AM | 5:01–7:01 AM 2:48–4:48 PM | 97 |
| Mon Nov 9 🌑 | 10:46–12:46 PM 11:11–1:11 AM | 6:09–8:09 AM 3:18–5:18 PM | 99 |
Predictions & observations: NOAA CO-OPS station 8440452. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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