Quick answer: Closed right now. The 2026–27 recreational Dungeness crab season opens on Saturday, November 7, 2026 — the first Saturday in November — and runs through June 30, 2027 south of the Mendocino/Sonoma county line and July 30 north of it. The daily bag limit is 10 crab with a 5¾-inch minimum size, and traps need a $2.98 Recreational Crab Trap Validation. Domoic acid closures and whale-entanglement trap restrictions can override those dates at any time, zone by zone.

No California fishery gets interrupted more often than Dungeness crab. The dates say one thing; domoic acid and whales frequently say another. Here’s how to read the whole picture.

The baseline season

The recreational season opens on the first Saturday in NovemberSaturday, November 7, 2026 for the 2026–27 season.

AreaRecreational seasonLimits
South of the Mendocino/Sonoma county lineNov 7, 2026 – Jun 30, 202710 crab/day, 5¾” minimum
North of the Mendocino/Sonoma county lineNov 7, 2026 – Jul 30, 202710 crab/day, 5¾” minimum

Measured across the shell (carapace) at its widest point, excluding the points. Ten crab is the combined daily bag and possession limit per person. Traps — but not hoop nets or snares — also need a $2.98 Recreational Crab Trap Validation. Source: live CDFW regional regulations, September 5, 2026.

You will also see a different date reported every autumn for “crab season”: that is the commercial fishery, which runs on its own schedule and opens later.

The November 7 opener, and why it slips →

Why the dates are only half the story

Domoic acid. A naturally occurring algal toxin accumulates in crab some years, and CDPH/CDFW respond with zone-based delays or closures — sometimes take is allowed with an advisory to discard the viscera (“crab butter”). These closures are announced by county line and can appear mid-season. CDFW runs a Domoic Acid Fishery Closure Information Line at (831) 649-2883.

Whale entanglement. Under California’s Risk Assessment Mitigation Program (RAMP), when humpback whales concentrate in crabbing grounds, CDFW restricts or bans crab traps for recreational crabbers in affected fishing zones — often in the crucial November window. Hoop nets and crab snares usually remain legal during trap restrictions, which is a distinction that saves trips.

The practical consequence: “Is crab open?” has a different answer depending on your zone, your gear, and the week. The opener you read about in a news article may not apply to the trap you planned to drop.

Gear rules worth knowing

Track openers, delays and zones in Creel

Creel shows Dungeness crab status for your region — open, closed or restricted — with the bag limit, size minimum and season dates, plus CDPH health advisories and CDFW in-season changes surfaced automatically as they post. That means the domoic acid delay or the trap restriction shows up in the same card as the season dates, updated daily. Offline-cached, so it works at the ramp before sunrise.

Crab closures are health-critical: eating crab from a closed zone can cause amnesic shellfish poisoning. Always verify current zone status with CDFW/CDPH before crabbing.

Frequently asked questions

What is the best month for Dungeness crabs?

Early season — November and December — typically produces the fullest, heaviest crabs before winter storms and fishing pressure thin the easy pickings. That is also when domoic acid delays are most likely, so check status before the first drop.

Why is the Dungeness crab season delayed some years?

Two reasons: domoic acid (a natural algal toxin that makes crab meat unsafe and triggers health closures) and whale entanglement risk, which delays or restricts the use of crab traps when humpbacks are still feeding in the fishing grounds.

Is it safe to eat Dungeness crab right now?

When the season is open, crab from open zones is safe — closures exist precisely to keep contaminated crab off your table. During domoic acid advisories, CDPH sometimes allows take but recommends discarding the viscera (crab butter). Check current CDPH advisories for your zone.

Can you crab from a boat you also fish commercially?

Sport crabbing from a registered commercial Dungeness vessel is allowed as long as commercial and sport activity do not happen on the same day.