Pacific Sailfish
The signature catch of Costa Rica and the fish that puts Tamarindo on the map. Pacific sailfish are the most abundant billfish in these waters — fast, acrobatic, and absolutely stunning when they go airborne with that sail fully flared.
Sailfish here average 80–120 lbs and fight hard for their size. They hit trolled ballyhoo or live bait, and the strike is explosive — a flash of purple and silver screaming away from the boat at 60+ mph. Expect to fight them on 30–50 lb stand-up tackle. Most boats release 2–5 sails per trip during peak season.
Peak season: December – April | Average size: 80–120 lbs | Status: Catch & release only
Technique: Trolling with ballyhoo, live bait (goggle-eyes, blue runners), or teasers with pitch baits.
Blue Marlin
The ultimate prize in offshore fishing. Blue marlin off Tamarindo average 200–400 lbs, with fish over 500 lbs caught every season. These are the apex predators of the Pacific — powerful, intelligent, and capable of hour-long battles that leave experienced anglers shaking.
Blue marlin hunt the temperature breaks and current edges 20–40 miles offshore. They hit large trolling lures, skirted ballyhoo, and live bonito. When a blue lights up and charges the spread, it's a moment you'll never forget — that massive bill slashing through the water, the explosion on the lure, and then pure chaos.
Peak season: May – November | Average size: 200–400 lbs | Status: Catch & release only
Technique: Trolling large lures, skirted ballyhoo, or live bonito along current edges and temperature breaks.
Roosterfish
If there's one fish that defines Tamarindo's inshore fishing, it's the roosterfish. Named for the spectacular dorsal comb of seven elongated spines that stands up when the fish is fired up, roosters are found nowhere else in the world outside the Eastern Pacific — from Baja to Peru, with Costa Rica at the epicenter.
Roosterfish patrol the sandy beaches, rocky points, and river mouths within a mile of shore. They hit live sardines, blue runners, and mullet — and the take is violent. A 40-lb rooster will dump 200 yards of line on the first run, pulling like a freight train just below the surface. They average 20–50 lbs here, with trophies pushing 80+.
Peak season: May – October | Average size: 20–50 lbs | Status: Catch & release only
Technique: Slow-trolling live bait along beaches and rocky structure, or casting poppers and swimbaits.
Mahi-Mahi (Dorado)
Mahi-mahi are the crowd-pleasers of offshore fishing — beautiful, aggressive, acrobatic, and delicious. They're one of the fastest-growing fish in the ocean, reaching 20–30 lbs in their first year, and they fight with reckless abandon: jumping, tail-walking, and greyhounding across the surface.
In Tamarindo, mahi stack up around floating debris, weed lines, and current edges 10–25 miles offshore. When you find a school, the action can be nonstop — it's not uncommon to hook doubles and triples on the same pass. Bulls (males) average 15–30 lbs here, with occasional fish pushing 50+.
Peak season: May – October | Average size: 15–30 lbs | Status: Can keep (great eating)
Technique: Trolling small lures or ballyhoo, casting to floating debris, or live-baiting near weed lines.
Yellowfin Tuna
Pure muscle. Yellowfin tuna are the hardest-fighting fish pound-for-pound in the Pacific, and the waters off Tamarindo hold them year-round. They school around seamounts, floating objects, and baitfish concentrations 20–40 miles offshore. When a tuna hits, there's no mistake — it simply goes down, and you hold on.
Tamarindo produces yellowfin in the 30–80 lb range consistently, with fish over 100 lbs caught several times per season near the offshore seamounts. They're also arguably the best eating fish in the ocean — fresh yellowfin sashimi straight from the boat is a life-changing experience.
Peak season: Year-round (best May – September) | Average size: 30–80 lbs | Status: Can keep (world-class sashimi)
Technique: Chunking, trolling cedar plugs, or live-baiting near seamounts and porpoise schools.
Inshore & Reef Species
You don't need to go 20 miles offshore to have an incredible day. Tamarindo's inshore waters are stacked with fighters that'll bend your rod and fill your cooler.
🐟 Cubera Snapper
The bruiser of the reef. Cubera snapper hit live bait hard and then try to bury you in the rocks. They average 15–40 lbs around Tamarindo's structure and reefs, with occasional 60+ lb trophies. Outstanding eating — firm white meat that's perfect grilled or in ceviche. Best months: year-round, peaking in the rainy season.
🐟 Snook
Found in the river mouths, estuaries, and mangrove edges near Tamarindo — especially the San Francisco estuary between Tamarindo and Langosta. Snook are ambush predators that hit lures and live bait with shocking aggression. They average 8–20 lbs here and are prized table fare. Best months: September – January during the rains.
🐟 Jack Crevalle
If you want nonstop action, jack crevalle deliver. These powerful, thick-bodied fish school in the surf zone and around rocky structure year-round. They average 10–25 lbs, hit everything from topwater poppers to live sardines, and fight well above their weight class. Great for kids and first-timers — the bites are constant.
Bonus species: Wahoo (offshore, 20–60 lbs, fast and elusive), rainbow runners, amberjack, grouper, sierra mackerel, and tripletail round out the lineup depending on season and conditions.
Species by Trip Type
🔵 Offshore Big Game
- Sailfish — peak Dec–Apr, 80–120 lbs
- Blue Marlin — peak May–Nov, 200–400+ lbs
- Striped Marlin — peak Oct–Dec, 100–200 lbs
- Yellowfin Tuna — year-round, 30–100+ lbs
- Mahi-Mahi — peak May–Oct, 15–50 lbs
- Wahoo — peak Nov–Feb, 20–60 lbs
🟢 Inshore Light Tackle
- Roosterfish — peak May–Oct, 20–80+ lbs
- Jack Crevalle — year-round, 10–25 lbs
- Snook — peak Sep–Jan, 8–20 lbs
- Rainbow Runner — year-round, 5–15 lbs
- Sierra Mackerel — dry season, 3–8 lbs
🟡 Bottom & Reef
- Cubera Snapper — year-round, 15–60+ lbs
- Red Snapper — year-round, 5–20 lbs
- Grouper — year-round, 10–40 lbs
- Amberjack — year-round, 15–50 lbs
- Tripletail — rainy season, 5–15 lbs
Catch & Release in Costa Rica
Costa Rica is a global leader in sport fishing conservation. All billfish (sailfish, marlin) and roosterfish are strictly catch-and-release by law. This policy, enforced by INCOPESCA (the Costa Rican Institute of Fisheries and Aquaculture), has kept these waters among the most productive in the world.
Reputable charters use circle hooks to minimize injury, practice proper handling techniques, and get fish released quickly. If you want to take something home for dinner, mahi-mahi, tuna, snapper, and wahoo are all excellent eating — and your captain will fillet and bag them for you at the dock.