TidalMap

Merrimacport Tide Times

Massachusetts · Station 8440369 · Updated Aug 5, 2026

Merrimacport runs a mean tidal range of about 6.6 ft. This month the highest water, 8.3 ft, comes on the morning of Aug 12, and the lowest, a -0.4 ft minus tide, on the morning of Aug 13.

Nearest gauge measuring live water level: Seavey Island (8419870), about 22 mi away — high and low tides here run on average about 85 min later.

Predictedno live gauge

Next high tide 7.6 ft at 6:27 PM

Predicted

Monthly tide calendar

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

🌊 Biggest flood tides at Merrimacport this month: Aug 7, Aug 8, Aug 9, Aug 10, Aug 12, Aug 13, Aug 14, Aug 15. 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 Merrimacport this month: Aug 10, Aug 11, Aug 12, Aug 13, Aug 14, Aug 15, Aug 16. These drain the flats and expose the oyster rock — prime for sight-fishing and clamming.

August 2026

Sun

Mon

Tue

Wed

Thu

Fri

Sat

1H:7.6L:0.3H:6.8L:0.8

2H:7.6L:0.3H:7.0L:0.7

3H:7.4L:0.4H:7.3L:0.6

4H:7.2L:0.5H:7.5

5🌗L:0.6H:7.0L:0.6H:7.6

6🌗L:0.5H:6.7L:0.7H:7.7

7🌗L:0.4H:6.5L:0.8H:7.8

8L:0.3H:6.3L:0.8H:7.9

9L:0.1H:6.3L:0.6H:8.1

10L:-0.1H:6.4L:0.4H:8.2

11L:-0.2H:6.5L:0.2

12🌑H:8.3L:-0.4H:6.8L:0.1

13🌑H:8.3L:-0.4H:7.0L:-0.1

14🌑H:8.2L:-0.4H:7.2L:-0.1

15🌑H:7.9L:-0.3H:7.3L:-0.0

16H:7.6L:-0.1H:7.4L:0.1

17H:7.2L:0.2H:7.4L:0.3

18H:6.8L:0.5H:7.3

19🌓L:0.5H:6.5L:0.8H:7.1

20🌓L:0.7H:6.1L:1.1H:7.0

21🌓L:0.9H:5.9L:1.3H:6.9

22🌓L:1.0H:5.7L:1.4H:6.8

23L:1.0H:5.6L:1.3H:6.9

24L:0.9H:5.7L:1.2H:7.0

25L:0.8H:5.8L:1.1H:7.1

26L:0.7H:6.1L:0.9

27🌕H:7.3L:0.5H:6.3L:0.8

28🌕H:7.4L:0.4H:6.7L:0.6

29🌕H:7.5L:0.3H:7.0L:0.4

30H:7.5L:0.3H:7.3L:0.3

31H:7.5L:0.3H:7.6L:0.2

Best fishing times (solunar)

Major and minor solunar windows for Merrimacport — 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 🌗	4:54–6:54 AM 5:19–7:19 PM	10:08–12:08 AM 12:26–2:26 PM	34
Thu Aug 6 🌗	5:50–7:50 AM 6:15–8:15 PM	10:47–12:47 AM 1:45–3:45 PM	40
Fri Aug 7 🌗	6:50–8:50 AM 7:15–9:15 PM	— 3:02–5:02 PM	53
Sat Aug 8 🌘	7:53–9:53 AM 8:18–10:18 PM	11:37–1:37 AM 4:13–6:13 PM	66
Sun Aug 9 🌘	8:58–10:58 AM 9:23–11:23 PM	12:39–2:39 AM 5:12–7:12 PM	76
Mon Aug 10 🌘	10:01–12:01 PM 10:26–12:26 AM	1:52–3:52 AM 5:58–7:58 PM	85
Tue Aug 11 🌘	11:00–1:00 PM 11:25–1:25 AM	3:11–5:11 AM 6:35–8:35 PM	92

Predictions & observations: NOAA CO-OPS station 8440369. 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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