TidalMap

Riverside Tide Times

Massachusetts · Station 8440889 · Updated Sep 19, 2026

Riverside runs a mean tidal range of about 5.3 ft. This month the highest water, 6.7 ft, comes on the afternoon of Sep 30, and the lowest, a -0.2 ft minus tide, on the evening of Sep 12.

Nearest gauge measuring live water level: Seavey Island (8419870), about 26 mi away, high and low tides here run on average about 142 min later.

Predictedno live gauge

Next low tide 0.7 ft at 2:48 AM

Predicted

Today's tides
Low tide	2:48 AM	0.7 ft
High tide	7:35 AM	4.7 ft
Low tide	2:58 PM	1.1 ft
High tide	8:00 PM	5.6 ft

Monthly tide calendar

Flood & low finder Flood tide ≥ ft Low tide ≤ ft

🌊 Biggest flood tides at Riverside this month: Sep 1, Sep 2, Sep 3, Sep 4, Sep 5, 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 Riverside this month: Sep 9, Sep 10, Sep 11, Sep 12, Sep 13, 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:5.9L:0.5H:6.3

2L:0.2H:5.7L:0.6H:6.4

3🌗L:0.3H:5.5L:0.7H:6.4

4🌗L:0.3H:5.3L:0.7H:6.4

5🌗L:0.3H:5.1L:0.7H:6.3

6🌗L:0.3H:4.9L:0.6H:6.2

7L:0.2H:4.9L:0.5H:6.2

8L:0.0H:4.9L:0.2H:6.1

9L:-0.1H:5.1L:0.1

10H:6.1L:-0.2H:5.3L:-0.1

11🌑H:6.0L:-0.2H:5.6L:-0.2

12🌑H:5.9L:-0.1H:5.8L:-0.2

13🌑H:5.8L:0.0H:6.0L:-0.1

14H:5.6L:0.2H:6.1L:0.0

15H:5.5L:0.4H:6.1

16L:0.2H:5.3L:0.6H:6.0

17L:0.4H:5.1L:0.9H:5.9

18🌓L:0.6H:4.9L:1.0H:5.7

19🌓L:0.7H:4.7L:1.1H:5.6

20🌓L:0.8H:4.6L:1.1H:5.5

21🌓L:0.8H:4.6L:1.0H:5.5

22L:0.7H:4.6L:0.9H:5.5

23L:0.6H:4.8L:0.7H:5.6

24L:0.5H:5.0L:0.6

25🌕H:5.7L:0.4H:5.3L:0.4

26🌕H:5.8L:0.4H:5.7L:0.2

27🌕H:5.8L:0.4H:6.1L:0.1

28🌕H:5.9L:0.4H:6.4L:-0.0

29H:5.8L:0.4H:6.6L:-0.0

30H:5.7L:0.5H:6.7L:-0.0

Best fishing times (solunar)

Major and minor solunar windows for Riverside, 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 🌓	6:31–8:31 PM 6:56–8:56 AM	2:16–4:16 PM 10:48–12:48 AM	41
Sun Sep 20 🌓	7:20–9:20 PM 7:45–9:45 AM	2:54–4:54 PM —	54
Mon Sep 21 🌓	8:07–10:07 PM 8:32–10:32 AM	3:26–5:26 PM 11:51–1:51 AM	67
Tue Sep 22 🌔	8:53–10:53 PM 9:18–11:18 AM	3:52–5:52 PM 12:56–2:56 AM	77
Wed Sep 23 🌔	9:37–11:37 PM 10:02–12:02 PM	4:15–6:15 PM 2:02–4:02 AM	86
Thu Sep 24 🌔	10:20–12:20 AM 10:45–12:45 PM	4:36–6:36 PM 3:09–5:09 AM	93
Fri Sep 25 🌕	— —	4:57–6:57 PM 4:16–6:16 AM	96

Predictions & observations: NOAA CO-OPS station 8440889. 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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