San Diego Offshore Fishing

Shark Fishing
San Diego

Mako, thresher, blue shark, and a handful of inshore species — Southern California is one of the great shark fisheries on the planet, right off our coast.

Mako shark caught on a Brothers Sport Fishing offshore charter off San Diego
Species Guide

Meet the Sharks

Southern California is one of the great shark fisheries on the planet, with a mix of pelagic speedsters, reef-edge ambushers, and the occasional protected species you tag and release for the photo. The local lineup:

  • Shortfin Mako50–150 lbs avg The most famous game shark on the coast. Makos leap clean out of the water on the strike and rank among the most active fighters in saltwater. Pound for pound, the hottest pelagic battle available.
  • Thresher50–150 lbs avg Long upper tail lobe that the fish actually uses as a weapon, slapping schools of baitfish to stun them before circling back. A genuinely prehistoric hunting tactic.
  • Blue SharkCatch & Release Slender, deep blue back, and long pectoral fins built for offshore cruising. Common around the offshore grounds and almost always released.
  • Soupfin (Tope), Sevengill & Leopard Smaller coastline species. Soupfin gets its name from old Chinese fin-soup demand. Sevengill is a primitive species with seven gill slits instead of the typical five. Leopard is the spotted shallow-water fish that surfers spot in summer.
  • Hammerhead & Great WhiteProtected — Release Both protected in California. Hookups happen, but every fish goes back in the water for a clean release.

If you like big animals that hit hard and look prehistoric, this is your trip.

Protected Species ProtocolCalifornia protects hammerheads and great whites. If one of those comes up on the line, the captain coordinates a quick, safe release at the rail — no photo in the water, fish goes back healthy.

Shark on deck — Brothers Sport Fishing offshore charter, San Diego
Biology & Records

What Makes Them So Special

These fish are biological time capsules. The group has been swimming the planet's oceans for more than 400 million years, predating trees, dinosaurs, and most life as we know it.

400M+
Years on Earth

Sharks predate trees, dinosaurs, and most complex life. They have outlasted every mass extinction event in Earth's history.

11 mph
Mako Measured Burst

Bio-loggers on wild mako measured burst speeds near 11 mph, with cruising around 4 mph. The fastest confirmed speed of any shark species by field measurement.

50%
Thresher Tail Length

The thresher's upper tail lobe can equal half the fish's total body length. High-speed video confirms it whips this overhead to stun prey before feeding.

7
Sevengill Gill Slits

Most modern sharks have five gill slits. The sevengill keeps the older, ancestral blueprint — a holdover from an ancient lineage unchanged for tens of millions of years.

Partially warm-blooded and built for speed. Both mako and thresher are partially endothermic — their circulatory systems hold muscle temperature above the surrounding water, giving them extra speed and stamina unavailable to most cold-water predators. That is why a mako fight feels different from anything else on the rail. Read the bio-logger speed study →
Fishing Grounds

Where to Find Them Off Our Coast

These predators move with the bait, the temperature, and the structure. Brothers Sport Fishing captains work three zones depending on the target species.

Local Coastline Within 10 miles

  • Sevengill, leopard, and soupfin patrol shallower water and bay mouths
  • Good nearshore variety for anglers who want coastline fishing
  • Leopard sharks active spring through summer close to shore

Offshore Grounds 30–100 miles out

  • Prime mako, blue shark, and thresher territory in warm-water breaks
  • Chum slick technique works best in deep blue water far from the coast
  • Bluefin and yellowfin tuna often share the same offshore zones
Season Mako & Thresher: Peak May through October, with warm-water (El Niño) years extending the bite into November and December.   Nearshore Species: Leopard, soupfin, and sevengill run year-round in shallower coastline water.
Gear & Setup

Tackle, Bait & Technique

This kind of fishing rewards patience, smell, and serious gear. Brothers Sport Fishing captains run full chum operations — you supply the focus, the boat supplies everything else.

Standard Shark Offshore Setup
Rod Heavy conventional, 6 to 7 feet
Reel Two-speed conventional with at least 400 yards of 65–80 lb braid
Leader 6 to 10 feet of 250 lb monofilament or wire — built to handle teeth and tail
Hooks 8/0 to 12/0 non-stainless circle hooks for safer releases
Bait Whole mackerel, bonito, or barracuda — fresh and bloody beats frozen every time
Chum Constant slick of ground fish and oil run off the back of the boat

Drift Fishing the Chum Slick

The captain finds the right water temperature and color break, kills the engines, and you wait. The slick can take 30 minutes to an hour to bring a fish up from depth. When a fin shows up, the rods come tight one after another.

When the Bite Comes

Makos often free-jump on the strike, clearing the water by 10 feet or more. Wire your leader, let the circle hooks set themselves, and fight the fish steadily until the leader hits the rod tip. The captain and mate handle the rail work — you handle the rod.

Safety at the Rail

The bite is the easy part. The danger is at the rail: teeth, tails, and gills in motion. Brothers Sport Fishing crews wire every leader, gaff carefully, and manage the fish at the boat until you have your photo and the catch is secured or safely back in the water.

On the Water

Shark Action Off San Diego

A look at what happens when the chum slick does its job and a big pelagic shark finds the boat.

Get on the Water

Your Shark Charter Options

These trips need time on the water and the right boat positioning. Three trip types do the job — from the offshore zone to the Coronados reef edges.

Photo Coming Soon
Full Day — Coronados

Coronado Islands Charter

A 12-hour day across the international line, working the reef edges and current lines south of the border for a mixed-bag day with mako, thresher, and coastal species.

View This Charter
Photo Coming Soon
Full Day — Deep Blue

Offshore Charter

Best for chasing the bigger pelagics that hold in deep blue water alongside tuna and dorado. The chum slick runs all day — a full offshore experience with sharks as the primary target.

View This Charter

Also in the mix

Most trips here come with side action. Plan on running into bluefin and yellowfin tuna on the offshore grounds and trophy yellowtail at the Coronados.

Common Questions

Frequently Asked Questions

California allows angler harvest of mako, thresher, blue shark, and several smaller coastline species under current size and bag rules. Hammerhead and great white are protected and must be released immediately. The captain keeps current on regulations — rules in this fishery do update, and the boat always runs to the latest legal standard.

Mako and thresher peak May through October, with warm-water years extending the bite into November or December. Leopard and soupfin run nearshore year-round. During an El Niño, warm water pushes the offshore species surprisingly close — some of the biggest mako years on record have come out of strong warm-water cycles.

The bite is the easy part. The danger is at the rail: teeth, tails, and gills in motion on a moving boat. Brothers Sport Fishing crews wire every leader, gaff carefully, and manage the fish at the boat until you have your photo and the catch is secured or safely back in the water. Experienced deckhands make the difference between a clean operation and a close call.

Local boats land 200 to 300 pound makos and threshers regularly, with occasional 400+ pound trophies in big-bait years. The California sport fishing records for both species are held by fish caught within range of San Diego. Larger protected sharks — hammerheads, great whites — get released without weight or measurement.

Yes. A chum slick is the heart of the technique. Captains run a constant slick of ground fish and oil off the back of the boat to draw the bite from miles away. The slick can take 30 minutes to an hour to bring a fish in. Once one comes in, others often follow — shark trips can go from zero activity to multiple rods bent at once very quickly.

Ready for the Big One?

Private shark charters from Mission Bay — May through October and warm-water years beyond.

Text or Call +1 619-289-3352