Bluefin & Yellowfin Tuna

About the California tuna fishery

California's tuna fishery is centered on the warm offshore water off Southern California, with San Diego serving as the launch point for the deepest, most productive trips. The two species that drive the fishery are Pacific bluefin tuna and yellowfin tuna. Bluefin are the prize: powerful, deep-fighting fish that in recent years have grown to enormous sizes within reach of day boats, while yellowfin are the classic warm-water tuna that show in good numbers when the offshore temperature breaks line up.

What makes San Diego special is geography. The canyons, banks and offshore high spots within range of the fleet hold bait and warm water through the warmer months, so boats can reach feeding tuna on everything from a long full-day run to a multi-week trip down the Baja coast. The fishery is weather- and water-driven, which means it swings year to year, but when conditions line up the bite can be world-class.

Tuna are a migratory, pelagic species, so you are not fishing a fixed spot the way you would for bottom fish. Crews run offshore reading temperature breaks, current edges, bird schools, breaking fish, kelp paddies and sonar marks. That hunting element is part of the appeal and part of why local knowledge and a good captain matter so much on a tuna trip.

Where & when to catch tuna in California

San Diego is the heart of it. Boats depart from the Point Loma and Mission Bay landings and head offshore to find the fish. The high season for California tuna runs roughly April through October, with the offshore bite building through spring, peaking in summer, and tapering through fall as the water cools. Bluefin in particular tend to peak in July, when warm water and bait line up close enough for day boats to reach them.

The right trip type depends on how far the fish are. Early and late in the season, or when the bite is well offshore, overnight and multi-day long-range trips out of San Diego are the way to reach them. In the heart of summer, fish can be close enough for a long full-day run. Use the table below as a general guide to seasonal timing.

What to expect on a tuna trip

A tuna trip is not a sit-and-relax outing. Expect a long run offshore before you ever drop a line, time spent searching while the crew hunts bait and breaking fish, and intense, all-hands stretches when the boat stops on a school. When the bite is on, things move fast, and being ready to cast or drop the moment the captain calls it is how you get bit.

Techniques vary with conditions. Live-bait fishing with sardines or anchovies on a fly-lined or sinker rig is a staple, especially around kelp paddies and on stopped schools. Crews also throw surface iron (heavy metal jigs), poppers and stickbaits for breaking fish, and fish the sinker rig or yo-yo iron deeper when tuna are holding down. Heavier outfits with serious drag are the norm because these fish pull hard and can run a long time.

• Long offshore runs — much of the day can be travel and searching before the first stop.
• Live bait (sardines, anchovies) fly-lined or weighted is the bread-and-butter approach.
• Surface iron, poppers and stickbaits come out for breaking and feeding fish.
• Heavy tackle and strong drag — bluefin especially test gear and angler.
• Listen to the crew: rigging, hooks and presentation are dialed to the day's conditions.

Trip types & what tuna fishing costs

Tuna trips span the full range of California sportfishing, from a long full day to a multi-week long-range expedition, and the price scales with the distance and time. Offshore full-day trips out of San Diego commonly run in the low hundreds per person, while a dedicated full-day bluefin trip is a premium product — the boat-average cost for a San Diego full-day bluefin trip is around $2,830, which is why many anglers split a private charter or buy a single seat on an open-party run.

Open-party booking is the budget-friendly path: you buy one seat, show up about an hour early, and fish alongside other anglers on the same boat. A private charter means you reserve the whole boat for your group. Both are common for tuna; open party gets you offshore for far less, while private gives you control of the trip and the rail space.

How to find a last-minute tuna deal

Tuna trips are exactly the kind of fishing where last-minute deals appear, because boats want full rails on every departure. When an open-party offshore or overnight trip has a few unsold seats close to departure, operators discount them to fill the boat — and that is your opening to get offshore for less.

Mixed Bag Sportsman watches for those openings so you do not have to. Browse current tuna deals, and when you click through you go straight to the charter operator's own booking page to reserve through them. Mixed Bag earns a commission when you book through our link or coupon, at no extra cost to you, and every deal we post is reviewed by the site owner before it goes live.

If you want first crack at the best windows, set up deal alerts so new San Diego tuna openings hit your inbox. The hottest July bluefin trips and prime summer offshore dates can sell out quickly, so being early is the whole game.

• Watch open-party and overnight trips — open seats near departure are where discounts show up.
• Be flexible on dates; midweek departures and shoulder-season trips tend to deal best.
• Set deal alerts so new San Diego tuna openings reach you first.
• Have your California fishing license and Ocean Enhancement stamp ready so you can book on short notice.