TidalMap

Korths Harbor, San Joaquin River Tide Times

California · Station 9415229 · Updated Aug 5, 2026

Korths Harbor, San Joaquin River runs a mean tidal range of about 2.0 ft. This month the highest water, 4.1 ft, comes on the morning of Aug 10, and the lowest, a -0.1 ft minus tide, on the morning of Aug 11.

Nearest gauge measuring live water level: Port Chicago, Suisun Bay (9415144), about 26 mi away — high and low tides here run on average about 190 min later.

Predictedno live gauge

Next low tide 1.2 ft at 4:02 PM

Predicted

Monthly tide calendar

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

🌊 Biggest flood tides at Korths Harbor, San Joaquin River this month: Aug 6, Aug 8, Aug 9, 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 Korths Harbor, San Joaquin River this month: Aug 10, Aug 11, Aug 12, Aug 13. 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:1.2H:2.9L:0.1H:2.5

2L:1.0H:2.6L:0.3H:2.7

3L:0.9H:2.4L:0.6H:2.9

4L:0.7H:2.1L:0.9H:3.2

5🌗L:0.6H:1.9L:1.2H:3.4

6🌗L:0.4H:1.9L:1.4H:3.7

7🌗L:0.3H:1.9L:1.6

8H:3.9L:0.2H:2.0L:1.7

9H:4.1L:0.1H:2.1L:1.7

10H:4.1L:-0.0H:2.3L:1.6

11H:4.1L:-0.1H:2.4L:1.4

12🌑H:4.0L:-0.1H:2.5L:1.2

13🌑H:3.7L:-0.0H:2.7

14🌑L:1.0H:3.3L:0.1H:2.8

15🌑L:0.8H:2.9L:0.3H:2.9

16L:0.7H:2.6L:0.6H:3.0

17L:0.6H:2.2L:0.8H:3.1

18L:0.6H:2.0L:1.1H:3.1

19🌓L:0.6H:1.9L:1.4H:3.2

20🌓L:0.6H:1.8L:1.5H:3.2

21🌓L:0.6H:1.8L:1.7

22🌓H:3.3L:0.5H:1.9L:1.7

23H:3.3L:0.5H:2.0L:1.6

24H:3.4L:0.3H:2.0L:1.5

25H:3.4L:0.2H:2.1L:1.4

26H:3.3L:0.2H:2.3L:1.2

27🌕H:3.2L:0.1H:2.4L:1.0

28🌕H:3.1L:0.2H:2.6

29🌕L:0.8H:2.9L:0.3H:2.7

30L:0.6H:2.7L:0.5H:2.9

31L:0.5H:2.5L:0.8H:3.1

Best fishing times (solunar)

Major and minor solunar windows for Korths Harbor, San Joaquin River — 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 🌗	5:24–7:24 AM 5:49–7:49 PM	10:49–12:49 AM 12:46–2:46 PM	33
Thu Aug 6 🌗	6:20–8:20 AM 6:45–8:45 PM	— 2:02–4:02 PM	42
Fri Aug 7 🌗	7:21–9:21 AM 7:46–9:46 PM	11:33–1:33 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 🌘	9:29–11:29 AM 9:54–11:54 PM	1:31–3:31 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 🌘	11:30–1:30 PM 11:55–1:55 AM	3:59–5:59 AM 6:49–8:49 PM	92

Predictions & observations: NOAA CO-OPS station 9415229. 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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