Waterlands

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California halibutRetention open

Bay · California

Dowest Slough

38.02°N · 121.84°W · Bay · San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge

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Best score today · 11 PM · California halibut

83/100Great
Now
6512 PM PDT
Best window
11 PM-12 AMFlood tide
Tide now
Flooding2.4 ft ▲

Data from: NOAA CO-OPS + NDBC + ECMWF · Waterlands engine

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24-hour conditions · rolling from now

Conditions · 12 PM · now

Time12PNOW
Score65Great
Tide2.4 ft ▲Flooding
CurrentFlood1.2 kn · toward ESE
Wind3 kn Ngusts 11 · steady
Air temp79°Warm
WeatherClear0% cloud
Water68°FObserved

Current regulations

What you can keep here today

San Francisco Groundfish Management Area

IN EFFECT NOW

California halibut

Retention open
Daily limit
2 per day
Possession
2 in possession
Size
Minimum 22 in, total length
Season
No closed season on file
Annual quota
Not published

From CDFW 2026 California Ocean Sport Fishing Regulations booklet (last updated July 17, 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))
  • 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)

Seasonality · 52-week view · this week ringed

When California halibut is best here

Shoulder season for California halibut · 5 more weeks at shoulder

California halibut season by week of the year. Shoulder season for California halibut · 5 more weeks at shoulder.
  • Peak
  • Shoulder
  • Off
  • This week

California halibut in California

Spot profile

Dowest Slough

Depth
10-45 ftNearest water
Structure
Bay · Inner · ProtectedBay · slope
Season
Shoulder seasonCalifornia halibut

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 Dowest Slough

Dowest Slough is a bay in San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge, California. Depth in the nearest water is 10-45 ft, with a slope. Its profile reads bay, inner water and protected.

Waterlands scores 11 species here; the best right now are surfperch, leopard shark and striped bass. It is peak season now for surfperch, striped bass, cabezon and rockfish, and shoulder season for leopard shark, California halibut, white seabass and kelp greenling. Surfperch peak in May and from July through September. Leopard shark peak from May through August. Striped bass peak from June through July and from September through October.

Tackle & technique

California halibut
California halibut are ambush feeders that lie on sand or mud bottom, mostly in water shallower than 100 feet and often inside bays, harbors and estuaries. Drift or slow-troll a live anchovy or sardine on a sliding sinker rig, or bounce a swimbait along the bottom over flats, channel edges and sandy areas near structure. Keep the bait within a foot or two of the bottom and give a fish time to turn the bait before setting the hook.
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.
Leopard shark
Leopard sharks cruise shallow mudflats, sloughs and channel edges in bays, most often in less than 15 feet of water, and follow the flooding tide onto the flats to feed on crabs, worms, clams and small fish. Anchor or fish from shore or a pier with a sliding sinker rig and a chunk of squid, mackerel or ghost shrimp on the bottom. The bite is often better into the evening and at night.

Nearby spots

Other spots within an easy run

  • Antioch Point

    Cape · 1.0 mi

    70
    Top: Striped bassPeak season
    • Striped bass 70
    • Rockfish 67
    • Cabezon 64

    3 kt NH 2:14 PM · 3.4 ftL 7:54 PM · 1.1 ft

  • New York Slough

    Channel · 1.0 mi

    68
    Top: Striped bassPeak season
    • Striped bass 68
    • Leopard shark 66
    • California halibut 64

    3 kt NH 2:11 PM · 3.4 ftL 7:51 PM · 1.1 ft

  • Point Beenar

    Cape · 0.5 mi

    67
    Top: RockfishPeak season
    • Rockfish 67
    • Striped bass 65
    • Cabezon 64

    3 kt NH 2:14 PM · 3.4 ftL 7:54 PM · 1.1 ft

  • Middle Slough

    Channel · 1.1 mi

    63
    Top: California halibutShoulder season
    • California halibut 63
    • Striped bass 63
    • Lingcod 61

    3 kt NH 2:11 PM · 3.4 ftL 7:51 PM · 1.1 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.