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RockfishRetention openBay · California
Maintop Bay
37.70°N · 123.01°W · Bay · 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 · 11 AM · Rockfish
- Now
- 621 PM PDT
- Best window
- 5-9 PMFlood tide
- Tide now
- Ebbing3.4 ft ▼
Data from: NOAA CO-OPS + NDBC + ECMWF + Open-Meteo Marine · Waterlands engine
Notify me when Maintop Bay 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 · 1 PM · now
Tide & current
NOAA CO-OPS + Open-Meteo Marine
93Tide: EbbingCurrent: WeakWind & pressure
ECMWF
97Wind: 11 kt NWPressure: SteadyWater temp & sky
NDBC + Open-Meteo Marine
28Water temp: 58°F, warmLight: Partly cloudySolunar: Between periodsSeas: 7.5 ftSeason & habitat · Rockfish
Species seasonality
85Season: PeakHabitat: Usable structureDepth: In rangeRegulations: Retention open
Current regulations
What you can keep here today
San Francisco Groundfish Management Area
Rockfish
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. Within the 10-fish RCG limit: no more than 1 copper rockfish, 2 canary rockfish, and 2 vermilion/sunset rockfish. RCG complex: all rockfish, cabezon, and kelp and rock greenlings combined. A descending device must be aboard when fishing from a boat. Yelloweye, cowcod, bronzespotted and quillback rockfish may not be kept.
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))
- Cabezon Retention open (10 per day (10 rockfish, cabezon and greenlings 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)
- 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 Rockfish is best here
Peak season for Rockfish · 1 more week at peak
- Peak
- Shoulder
- Off
- This week
Spot profile
Maintop Bay
- Depth
- 25-100 ftDrop-off
- Structure
- Bay · Outer · ExposedBay · drop-off
- Season
- Peak seasonRockfish
NOAA NCEI DEM, sampled Sep 14 on a 464 m grid. Depths are feet below mean sea level, not chart datum (MLLW), so they can differ from a chart by a few feet. Not for navigation.
About this spot
Fishing Maintop Bay
Maintop Bay is a bay in San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge, California. Depth is 25-100 ft, with a drop-off. Its profile reads bay, outer water and exposed.
Waterlands scores 11 species here; the best right now are rockfish, lingcod and surfperch. It is peak season now for rockfish, surfperch, cabezon and striped bass, and shoulder season for lingcod, Chinook salmon, Pacific halibut and California halibut. Rockfish peak from May through September. Lingcod peak from April through May and from October through November. Surfperch peak in May and from July through September.
Tackle & technique
- Rockfish
- Rockfish live on rocky reefs, pinnacles and kelp from the shoreline out past 300 feet, with black and blue rockfish schooling mid-water over shallow reefs and copper, quillback, yelloweye and vermilion sitting tight to deeper bottom. Drift over the structure with a shrimp fly above a lead-head grub or metal jig, or a squid strip, and reel up a few cranks after touching bottom to cut snags. Use a descending device to release any fish brought up from deep water.
- Lingcod
- Lingcod ambush prey from rock outcrops, reef edges and kelp where current runs, most often in 30 to 300 feet, and males move shallow to guard nests in winter. Drift over the reef bouncing a lead-head swimbait or metal jig on the bottom, or fish herring or squid on a heavy leader, since their teeth cut light line. From jetties and rocky shore, work bait or jigs along the rocks on the incoming tide.
- 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.
Nearby spots
Other spots within an easy run
- Fisherman Bay62
Bay · 0.4 mi
Top: RockfishPeak season- Rockfish 62
- Lingcod 56
- Surfperch 45
11 kt NWL 3:47 PM · 2.2 ftH 9:22 PM · 5.2 ft
- The Jordan56
Channel · 0.2 mi
Top: RockfishPeak season- Rockfish 56
- Lingcod 54
- Chinook salmon 44
11 kt NWL 3:47 PM · 2.2 ftH 9:22 PM · 5.2 ft
- Fanny Shoal36
Bar · 10 mi
Top: Pacific halibutShoulder season- Pacific halibut 36
- Chinook salmon 35
- Cabezon 30
14 kt NNWL 3:47 PM · 2.2 ftH 9:22 PM · 5.2 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.