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Poponesset Island, Poponesset Bay Tide Times

Massachusetts · Station 8447742 · Updated Sep 19, 2026

Poponesset Island, Poponesset Bay runs a mean tidal range of about 2.2 ft. This month the highest water, 2.7 ft, comes on the afternoon of Sep 30, and the lowest, a -0.1 ft minus tide, on the evening of Sep 29.

Nearest gauge measuring live water level: Oceanographic Institution (8447930), about 12 mi away, high and low tides here run on average about 270 min later.

Predictedno live gauge
Next high tide 1.9 ft at 8:06 AM
Low 0.4 ft · 1:38 AMHigh 1.9 ft · 8:06 AMLow 0.6 ft · 1:48 PMHigh 2.1 ft · 8:16 PM
Predicted
Today's tides
Low tide1:38 AM0.4 ft
High tide8:06 AM1.9 ft
Low tide1:48 PM0.6 ft
High tide8:16 PM2.1 ft

Monthly tide calendar

Flood & low finder

🌊 Biggest flood tides at Poponesset Island, Poponesset Bay this month: Sep 1, Sep 2, Sep 8, Sep 10, Sep 11, Sep 12, Sep 13, Sep 27, Sep 28, Sep 29, Sep 30. 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 Poponesset Island, Poponesset Bay this month: Sep 1, Sep 9, Sep 10, Sep 11, Sep 12, Sep 13, Sep 27, Sep 28, Sep 29, Sep 30. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.

September 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1H:2.4L:0.1H:2.5L:-0.0
2H:2.3L:0.1H:2.5L:0.0
3🌗H:2.2L:0.2H:2.5
4🌗L:0.1H:2.2L:0.3H:2.5
5🌗L:0.1H:2.1L:0.3H:2.5
6🌗L:0.1H:2.1L:0.3H:2.5
7L:0.1H:2.1L:0.3H:2.5
8L:0.0H:2.2L:0.2H:2.6
9L:-0.0H:2.3L:0.1
10H:2.6L:-0.1H:2.4L:-0.0
11🌑H:2.6L:-0.1H:2.5L:-0.1
12🌑H:2.6L:-0.1H:2.6L:-0.1
13🌑H:2.5L:-0.0H:2.5L:-0.1
14H:2.4L:0.1H:2.5L:0.0
15H:2.3L:0.2H:2.4L:0.1
16H:2.2L:0.3H:2.4L:0.2
17H:2.1L:0.5H:2.3
18🌓L:0.3H:2.0L:0.5H:2.2
19🌓L:0.4H:1.9L:0.6H:2.1
20🌓L:0.4H:1.9L:0.6H:2.1
21🌓L:0.4H:1.9L:0.6H:2.2
22L:0.4H:2.0L:0.5H:2.2
23L:0.3H:2.1L:0.4H:2.3
24L:0.2H:2.2L:0.3
25🌕H:2.4L:0.1H:2.3L:0.1
26🌕H:2.4L:0.1H:2.4L:0.0
27🌕H:2.5L:0.0H:2.5L:-0.1
28🌕H:2.5L:0.0H:2.6L:-0.1
29H:2.5L:0.0H:2.7L:-0.1
30H:2.4L:0.1H:2.7L:-0.1

Best fishing times (solunar)

Major and minor solunar windows for Poponesset Island, Poponesset Bay, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).

DayMajor windowsMinor windowsScore
Today 🌓6:28–8:28 PM
6:53–8:53 AM		2:08–4:08 PM
10:51–12:51 AM		41
Sun Sep 20 🌓7:17–9:17 PM
7:42–9:42 AM		2:47–4:47 PM
—		54
Mon Sep 21 🌓8:05–10:05 PM
8:30–10:30 AM		3:20–5:20 PM
11:53–1:53 AM		67
Tue Sep 22 🌔8:51–10:51 PM
9:16–11:16 AM		3:47–5:47 PM
12:57–2:57 AM		77
Wed Sep 23 🌔9:35–11:35 PM
10:00–12:00 PM		4:11–6:11 PM
2:02–4:02 AM		86
Thu Sep 24 🌔10:18–12:18 AM
10:43–12:43 PM		4:33–6:33 PM
3:08–5:08 AM		93
Fri Sep 25 🌕—
—		4:54–6:54 PM
4:14–6:14 AM		96

Predictions & observations: NOAA CO-OPS station 8447742. 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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