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Threemile Slough Tide Times

California · Station 9415236 · Updated Aug 5, 2026

Threemile Slough runs a mean tidal range of about 2.9 ft. This month the highest water, 4.7 ft, comes on the morning of Aug 11, and the lowest, a -0.2 ft minus tide, on the morning of Aug 12.

Nearest gauge measuring live water level: Port Chicago, Suisun Bay (9415144), about 19 mi away — high and low tides here run on average about 113 min later.

Predictedno live gauge
Next low tide 1.0 ft at 2:54 PM
Low 0.9 ft · 3:38 AMHigh 2.8 ft · 9:28 AMLow 1.0 ft · 2:54 PMHigh 4.3 ft · 8:59 PM
Predicted

Monthly tide calendar

Flood & low finder

🌊 Biggest flood tides at Threemile Slough this month: Aug 5, Aug 6, Aug 7, Aug 8, Aug 10, Aug 11, Aug 12, Aug 13. 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 Threemile Slough this month: Aug 1, 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
1L:1.4H:3.9L:-0.0H:3.5
2L:1.2H:3.7L:0.1H:3.7
3L:1.0H:3.4L:0.3H:3.9
4L:0.9H:3.1L:0.6H:4.2
5🌗L:0.9H:2.8L:1.0H:4.3
6🌗L:0.8H:2.7L:1.4H:4.5
7🌗L:0.6H:2.8L:1.7H:4.6
8L:0.3H:3.0L:1.9H:4.7
9L:0.1H:3.2L:1.9
10H:4.7L:-0.1H:3.4L:1.8
11H:4.7L:-0.2H:3.5L:1.6
12🌑H:4.7L:-0.2H:3.6L:1.4
13🌑H:4.5L:-0.1H:3.7L:1.2
14🌑H:4.3L:-0.0H:3.8
15🌑L:1.0H:4.0L:0.2H:3.8
16L:0.8H:3.6L:0.4H:3.9
17L:0.7H:3.3L:0.7H:3.9
18L:0.7H:3.0L:1.0H:3.9
19🌓L:0.7H:2.8L:1.4H:3.9
20🌓L:0.6H:2.8L:1.7H:3.9
21🌓L:0.5H:2.9L:1.9H:3.9
22🌓L:0.3H:3.1L:2.0H:3.9
23L:0.2H:3.3L:1.9
24H:3.9L:0.1H:3.4L:1.8
25H:4.0L:0.0H:3.4L:1.6
26H:4.0L:0.0H:3.4L:1.4
27🌕H:4.0L:0.0H:3.5L:1.2
28🌕H:4.0L:0.1H:3.5L:1.0
29🌕H:3.8L:0.2H:3.7L:0.8
30H:3.7L:0.4H:3.9
31L:0.7H:3.5L:0.6H:4.1

Best fishing times (solunar)

Major and minor solunar windows for Threemile Slough — 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 🌗5:25–7:25 AM
5:50–7:50 PM		10:50–12:50 AM
12:47–2:47 PM		33
Thu Aug 6 🌗6:21–8:21 AM
6:46–8:46 PM		—
2:02–4:02 PM		42
Fri Aug 7 🌗7:21–9:21 AM
7:46–9:46 PM		11:34–1:34 AM
3:16–5:16 PM		55
Sat Aug 8 🌘8:25–10:25 AM
8:50–10:50 PM		12:27–2:27 AM
4:24–6:24 PM		67
Sun Aug 9 🌘9:30–11:30 AM
9:55–11:55 PM		1:32–3:32 AM
5:23–7:23 PM		78
Mon Aug 10 🌘10:32–12:32 PM
10:57–12:57 AM		2:44–4:44 AM
6:11–8:11 PM		86
Tue Aug 11 🌘11:31–1:31 PM
11:56–1:56 AM		4:00–6:00 AM
6:50–8:50 PM		92

Predictions & observations: NOAA CO-OPS station 9415236. 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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