TidalMap

Mare Island Tide Times

California · Station 9415218 · Updated Aug 5, 2026

Mare Island runs a mean tidal range of about 4.1 ft. This month the highest water, 6.5 ft, comes on the morning of Aug 12, and the lowest, a -0.8 ft minus tide, on the morning of Aug 11.

Nearest gauge measuring live water level: Martinez-Amorco Pier (9415102), about 7 mi away — high and low tides here run on average about 35 min earlier.

Predictedno live gauge

Next high tide 6.1 ft at 6:06 PM

Predicted

Monthly tide calendar

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

🌊 Biggest flood tides at Mare Island this month: Aug 6, Aug 7, Aug 8, Aug 9, Aug 10, Aug 12, Aug 13, Aug 14. 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 Mare Island this month: Aug 9, Aug 10, Aug 11, Aug 12, Aug 13, Aug 14. 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:5.6L:0.1H:5.0L:2.0

2H:5.3L:0.4H:5.3L:1.8

3H:4.8L:0.8H:5.6L:1.5

4H:4.3L:1.3H:5.9

5🌗L:1.3H:3.9L:1.9H:6.1

6🌗L:1.0H:3.7L:2.5H:6.2

7🌗L:0.6H:3.9L:2.9H:6.2

8L:0.1H:4.2L:3.0H:6.3

9L:-0.3H:4.5L:2.9H:6.4

10L:-0.6H:4.7L:2.6H:6.5

11L:-0.8H:4.9L:2.3

12🌑H:6.5L:-0.8H:5.1L:1.9

13🌑H:6.4L:-0.6H:5.3L:1.6

14🌑H:6.1L:-0.3H:5.4L:1.3

15🌑H:5.8L:0.1H:5.6L:1.2

16H:5.3L:0.6H:5.7L:1.1

17H:4.9L:1.2H:5.8

18L:1.0H:4.4L:1.8H:5.8

19🌓L:1.0H:4.2L:2.3H:5.7

20🌓L:0.9H:4.1L:2.7H:5.6

21🌓L:0.7H:4.2L:3.0H:5.5

22🌓L:0.5H:4.4L:3.0H:5.5

23L:0.3H:4.6L:2.9H:5.6

24L:0.1H:4.7L:2.7H:5.7

25L:0.0H:4.8L:2.5H:5.7

26L:0.0H:4.8L:2.3

27🌕H:5.7L:0.1H:4.9L:2.0

28🌕H:5.7L:0.2H:5.0L:1.7

29🌕H:5.5L:0.5H:5.2L:1.4

30H:5.3L:0.7H:5.6L:1.2

31H:4.9L:1.1H:5.9L:1.0

Best fishing times (solunar)

Major and minor solunar windows for Mare Island — 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 🌗	5:27–7:27 AM 5:52–7:52 PM	10:52–12:52 AM 12:49–2:49 PM	33
Thu Aug 6 🌗	6:23–8:23 AM 6:48–8:48 PM	— 2:04–4:04 PM	42
Fri Aug 7 🌗	7:24–9:24 AM 7:49–9:49 PM	11:36–1:36 AM 3:18–5:18 PM	55
Sat Aug 8 🌘	8:28–10:28 AM 8:53–10:53 PM	12:30–2:30 AM 4:27–6:27 PM	67
Sun Aug 9 🌘	9:32–11:32 AM 9:57–11:57 PM	1:34–3:34 AM 5:25–7:25 PM	78
Mon Aug 10 🌘	10:35–12:35 PM 11:00–1:00 AM	2:47–4:47 AM 6:13–8:13 PM	86
Tue Aug 11 🌘	11:33–1:33 PM 11:58–1:58 AM	4:02–6:02 AM 6:52–8:52 PM	92

Predictions & observations: NOAA CO-OPS station 9415218. 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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