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CabezonRetention openBar · California
Potatopatch Shoal
37.82°N · 122.58°W · Bar · San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge
Species here · tap to switch
Best score today · 7 PM · Cabezon
- Now
- 5410 AM PDT
- Best window
- 6-9 PMFlood tide
- Tide now
- Flooding5.2 ft ▲
Data from: NOAA CO-OPS + NDBC + ECMWF + Open-Meteo Marine · Waterlands engine
Notify me when Potatopatch Shoal scores 75+
Checked every morning against the 14-day forecast. Free by push and email.
14-day forecast
Best days to fish
24-hour conditions · rolling from now
Conditions · 10 AM · now
Tide & current
NOAA CO-OPS
100Tide: FloodingCurrent: 0.3 kn floodWind & pressure
ECMWF
89Wind: 2 kt WSWPressure: SteadyWater temp & sky
NDBC + Open-Meteo Marine
28Water temp: 63°F, warmLight: Partly cloudySolunar: Near a majorSeas: 5.2 ftSeason & habitat · Cabezon
Species seasonality
68Season: PeakHabitat: Poor fitDepth: In rangeRegulations: Retention open
Current regulations
What you can keep here today
San Francisco Groundfish Management Area
Cabezon
Retention open- Daily limit
- 10 per day (10 rockfish, cabezon and greenlings combined)
- Possession
- Not published
- Size
- No minimum size limit.
- Season
- Apr 1 to Dec 31, 2026
- Annual quota
- Not published
- Other
- Shore-based anglers and spear divers are exempt from groundfish seasons and depth limits. All groundfish fishing is prohibited at Cordell Bank. RCG complex: all rockfish, cabezon, and kelp and rock greenlings combined. A descending device must be aboard when fishing from a boat.
From CDFW Summary of Recreational Groundfish Fishing Regulations (updated June 23, 2026), read Sep 13
Other species here
- Albacore tuna Retention open (25 per day)
- Barred sand bass Retention open (4 per day (5 kelp bass, barred sand bass and spotted sand bass combined))
- California halibut Retention open (2 per day)
- Chinook salmon Retention open (2 per day (2 salmon combined))
- Coho salmon Closed (No retention)
- Kelp bass Retention open (5 per day (5 kelp bass, barred sand bass and spotted sand bass combined))
- Kelp greenling Retention open (10 per day (10 rockfish, cabezon and greenlings combined))
- Leopard shark Retention open (3 per day)
- Lingcod Retention open (2 per day)
- Mahi-mahi Retention open (10 per day)
- Pacific bluefin tuna Retention open (2 per day)
- Pacific halibut Retention open (1 per day)
- Rockfish Retention open (10 per day (10 rockfish, cabezon and greenlings combined))
- Sablefish Retention open (10 per day)
- Striped bass Retention open (2 per day)
- Surfperch Retention open (20 per day)
- White seabass Retention open (3 per day)
- Yellowfin tuna Retention open (10 per day)
- Yellowtail Retention open (10 per day)
Source: CDFW · synced today
Seasonality · 52-week view · this week ringed
When Cabezon is best here
Peak season for Cabezon · 1 more week at peak
- Peak
- Shoulder
- Off
- This week
Spot profile
Potatopatch Shoal
- Depth
- 25-30 ftFlat bottom
- Structure
- Shoal · Outer · ExposedShoal · flat bottom
- Season
- Peak seasonCabezon
NOAA NCEI DEM, sampled Sep 14 on a 3.4 m grid. Depths are feet below NAVD 88, not chart datum (MLLW), so they can differ from a chart by a few feet. Not for navigation.
About this spot
Fishing Potatopatch Shoal
Potatopatch Shoal is a bar in San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge, California. Depth is 25-30 ft, with a flat bottom. Its profile reads shoal, outer water and exposed.
Waterlands scores 11 species here; the best right now are surfperch, Pacific halibut and cabezon. It is peak season now for surfperch, cabezon, rockfish and striped bass, and shoulder season for Pacific halibut, kelp greenling, Chinook salmon and lingcod. Surfperch peak in May and from July through September. Pacific halibut peak from May through July. Cabezon peak from May through September.
Tackle & technique
- Cabezon
- Cabezon sit in rock crevices, kelp beds and jetty boulders from the intertidal zone to about 100 feet and feed mostly on crabs and small fish. Fish a fish-finder rig with sand shrimp, squid or crab right on the bottom in the rocks, or drag a lead-head grub slowly through the kelp. Expect snags, and do not eat the roe, which is toxic.
- Surfperch
- Surfperch feed in the troughs and holes within about 30 feet of the waterline, just outside the first set of breakers. Cast a two-hook high-low or Carolina rig with size 4 to 2 hooks and a 1 to 6 ounce pyramid sinker and let the surge work it through the trough. Fish the incoming tide on beaches with a steep drop, and switch to jetties, pilings and bays when the surf is too big.
- Pacific halibut
- Halibut sit on sand and gravel bottoms near drop-offs, bars and pinnacles, most often in 90 to 500 feet in Alaska and on the shelf off Washington, Oregon and far northern California. Anchor up-current of a likely edge and fish herring, squid, octopus or a salmon head on a circle hook with 24 to 32 ounces of weight, or bounce a large jig on the bottom. The best bite usually comes in the hour around slack tide.
Nearby spots
Other spots within an easy run
- Centissima Reef63
Bar · 1.6 mi
Top: CabezonPeak season- Cabezon 63
- Rockfish 62
- Lingcod 57
2 kt WSWL 3:56 PM · 2.2 ftH 9:44 PM · 5.8 ft
- Sears Rock63
Bar · 1.7 mi
Top: CabezonPeak season- Cabezon 63
- Rockfish 62
- Lingcod 57
2 kt WSWL 3:56 PM · 2.2 ftH 9:44 PM · 5.8 ft
- Four Fathom Bank58
Bar · 0.8 mi
Top: Pacific halibutShoulder season- Pacific halibut 58
- Surfperch 57
- Rockfish 55
2 kt WSWL 3:56 PM · 2.2 ftH 9:44 PM · 5.8 ft
- Bonita Channel55
Channel · 1.2 mi
Top: Pacific halibutShoulder season- Pacific halibut 55
- Surfperch 53
- Cabezon 52
2 kt WSWL 3:56 PM · 2.2 ftH 9:44 PM · 5.8 ft
Scores and forecasts are for planning only and can be wrong. Conditions on the water change fast; check the marine forecast before you go. Regulations change during the season, so confirm limits and closures with CDFW before you keep a fish.