From billfish that'll test every ounce of your strength to inshore fighters that'll empty your reel before you know what happened. Here's what swims in these waters — and how to catch it.
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.
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.
The heaviest of the marlin species found off Tamarindo — and the stuff of legend. Black marlin are ambush predators built like freight trains, with rigid pectoral fins and raw power that makes blue marlin look cooperative. The Costa Rica all-tackle record for black marlin — a staggering 956 lbs — was caught on Tamarindo Reef, just 10 minutes from the beach.
Black marlin patrol the reef structures and seamounts closer to shore than blues, which means you don't always need a full-day offshore trip to encounter one. They hit large live baits (bonito, skipjack) and big trolling lures. When a black strikes, it typically goes deep and bulldogs — fewer jumps than a blue, but brutal sustained power.
Peak season: December – April (esp. April–May) | Average size: 300–600 lbs | Status: Catch & release only
Technique: Trolling large skirted lures or live bonito/skipjack near reef structures and current edges.
The acrobat of the marlin family. Striped marlin are the most athletic billfish you'll encounter — lighter and faster than blues or blacks, with a habit of going fully airborne and tail-walking across the surface. They're present year-round off Tamarindo, making them a reliable billfish target even outside peak sailfish season.
Stripes average 100–200 lbs and feed aggressively on baitballs near the surface. They'll light up in vivid purple and blue stripes when excited — one of the most visually stunning fish in the ocean. A striped marlin on light tackle (20–30 lb) is one of the best fights in offshore fishing.
Peak season: October – December | Average size: 100–200 lbs | Status: Catch & release only
Technique: Trolling ballyhoo, live bait, or small skirted lures. Also responds well to pitch baits with teasers.
Speed is the word with wahoo. These torpedo-shaped fish are one of the fastest in the ocean — capable of bursts above 60 mph — and they hit trolled lures with a single violent strike before screaming line off the reel. The first run is often 200+ yards before you can clear the other rods.
Off Tamarindo, wahoo run 20–60 lbs with fish over 80 lbs caught each season during the dry season window. They patrol current edges, reef drop-offs, and temperature breaks in the 5–20 mile range. Captains target them by high-speed trolling at 14–16 knots using konas, ballyhoo with wire leaders, and diving lures. The wire leader is non-negotiable: wahoo have razor-sharp teeth and will bite through mono instantly.
Wahoo also make exceptional table fare — white, firm, mild flesh that's outstanding grilled, as sashimi, or smoked. Many anglers who didn't come specifically for wahoo end up saying it was the highlight of their trip.
Peak season: November – February (dry season) | Average size: 20–60 lbs | Status: Can keep (excellent eating)
Technique: High-speed trolling at 14–16 knots with wire leaders, konas, or rigged ballyhoo along current breaks and reef edges.
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 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.
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.
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.
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.
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.
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: Rainbow runners, amberjack, grouper, sierra mackerel, and tripletail round out the lineup depending on season and conditions. Wahoo — a prized dry-season target — now has its own full section above.
Not every fish is here every month. This is when to plan your trip based on what you want to catch.
| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sailfish | ⭐ | ⭐ | ⭐ | ⭐ | ● | ● | ● | ⭐ | ||||
| Blue Marlin | ● | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ● | ● | ||||
| Black Marlin | ● | ● | ● | ⭐ | ⭐ | ● | ● | |||||
| Striped Marlin | ● | ● | ● | ● | ● | ● | ● | ● | ● | ⭐ | ⭐ | ⭐ |
| Roosterfish | ● | ● | ● | ● | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ● | ● |
| Mahi-Mahi | ● | ● | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ● | |||
| Yellowfin Tuna | ● | ● | ● | ● | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ● | ● | ● |
| Wahoo | ⭐ | ⭐ | ● | ● | ⭐ | ⭐ | ||||||
| Cubera Snapper | ● | ● | ● | ● | ● | ⭐ | ⭐ | ⭐ | ⭐ | ● | ● | ● |
| Snook | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | |||||||
| Jack Crevalle | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
⭐ = Peak season · ● = Present/catchable · Blank = Rare or absent
Costa Rica's Pacific coast hosts some of the most prestigious billfish tournaments in the world. While the biggest events (Los Sueños Triple Crown, Bisbee's Costa Rica Offshore, IGFA Open) run out of Quepos and Marina Pez Vela, Tamarindo's charter fleet regularly competes — and places.
The tournament season runs January through April, coinciding perfectly with peak sailfish activity. Formats are conservation-first: all billfish are catch-and-release with digital scoring. Teams compete on release points, not kill weight. This approach has kept Costa Rica's waters among the most productive in the world.
For visiting anglers, tournament season means the fleet is dialed in, captains are competing for bragging rights, and conditions are at their best. Even if you're not entering a tournament, booking during this window (December–April) puts you on the water when the fish are thick and the crews are sharp.
Here's the good news: getting licensed to fish in Costa Rica is simple, and your charter company handles almost all of it. But it's worth understanding how it works so you're not surprised at the dock.
Do I need a fishing license? Yes. Under Costa Rica Law 8436, every person aboard a sport fishing vessel must carry a valid recreational fishing permit issued by INCOPESCA (Instituto Costarricense de Pesca y Acuicultura). This applies to tourists and residents alike.
How much does it cost? As of 2026, the fees are approximately $15 USD for an 8-day license, $30 for one month, and $50 for one year. Most reputable charter companies include this in the trip price — confirm when booking.
How do I get one? Your captain or charter company will obtain it through the INCOPESCA online portal (incopesca.go.cr) using your passport number. You don't need to do anything in advance — just have your passport handy at the dock. Some operators complete this before you even show up.
All billfish are protected by law: Pacific sailfish, blue marlin, black marlin, striped marlin, and roosterfish must be released alive. Violations carry significant fines and can result in your captain losing their license. Responsible charters use circle hooks to minimize injury and get fish back in the water quickly.
Mahi-mahi, yellowfin tuna, wahoo, snapper, grouper, jack, and sierra mackerel are all legal to keep within bag limits. Your captain will fillet and bag everything at the dock. Many local restaurants will cook your fresh catch the same evening.
INCOPESCA sets daily bag limits per angler. Generally: 10 fish per person per day for inshore species, with specific limits on certain reef fish. Your captain knows the current rules — ask before the trip if you plan to bring home a full cooler.
Bottom line: Don't stress about the paperwork. Book with a licensed charter, provide your passport number when asked, and fish legally. Responsible sport fishing has kept Costa Rica's waters world-class for decades.
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.
Understanding the geography around Tamarindo is key to targeting specific species. The coastline between Playa Flamingo to the north and Playa Grande to the south creates a diverse ecosystem with distinct zones that hold different fish.
Offshore (15–40 miles): The deep blue water where the continental shelf drops off is billfish country. Sailfish concentrate along temperature breaks — sharp boundaries where warm surface water meets cooler upwelling. Your captain reads water color (cobalt blue = warm, greenish = nutrient-rich upwelling) and sea surface temperature charts to find these edges. Blue marlin patrol the seamounts further offshore, especially the underwater peaks 25–35 miles out where baitfish concentrate. Yellowfin tuna school around the same structures, often mixed with spinner dolphins that captains use as visual indicators.
Nearshore (5–15 miles): The transition zone holds mahi-mahi around floating debris, weed lines, and current eddies. Wahoo cruise the reef edges and current breaks in this zone, often at high speed — they're one of the fastest fish in the ocean, capable of 60+ mph bursts. Striped marlin also frequent this range, particularly during the October–December peak when they follow baitball migrations along the coast.
Inshore (0–5 miles): The rocky points between Playa Tamarindo and Playa Langosta are prime roosterfish habitat. The San Francisco Estuary — the river mouth between Tamarindo and Langosta — is a snook hotspot during the rainy season when freshwater runoff pushes shrimp and baitfish into the surf zone. The reef structures off Playa Grande hold cubera snapper, grouper, and amberjack year-round. During green season, the beach breaks between Tamarindo and Playa Avellanas become roosterfish highways as schools of sardines hug the shoreline.
The Playa Flamingo marina, about 25 minutes north, serves as the primary deep-water port for larger sportfishing vessels that can't beach-launch from Tamarindo. If you're booking a 35+ foot sportfisher for a full-day offshore run, it may depart from Flamingo rather than the Tamarindo beach. The extra drive is worth it for the boat quality and range.
One of the best parts of a fishing day in Tamarindo is eating what you caught. Once your captain fillets and bags your mahi-mahi, yellowfin tuna, snapper, or wahoo at the dock, you've got several outstanding options for turning that fresh catch into dinner.
Pangas Beach Club on Playa Langosta will cook your fish for roughly $10–15 per person — they'll grill it, prepare it as ceviche, or do a blackened preparation with their house sides. It's one of the most beautiful restaurant settings in Tamarindo, right on the sand with sunset views. Bring your fish cleaned and filleted in a cooler within a couple hours of landing.
Nogui's in Tamarindo center has been a local institution for decades. They'll prepare your fish simply and well — grilled with garlic butter, or fried with patacones (fried plantains). Casual, affordable, and the kind of place where you'll see charter captains eating lunch.
For a more upscale preparation, Seasons by Shlomy will transform your yellowfin tuna into sashimi-grade presentations that rival anything you'd find in a major city. It's pricier, but if you caught a beautiful yellowfin, this is where to bring it.
If you're staying somewhere with a kitchen, fresh mahi-mahi is incredibly easy to cook well. A simple pan-sear with lime, garlic, and cilantro — five minutes per side — is one of the best meals you'll ever have. Yellowfin tuna sashimi with soy sauce and wasabi, straight from the boat to your cutting board, is a life-changing experience. Your captain will tell you which cuts are sashimi-grade and how to slice them.
Sailfish are the signature catch — Tamarindo is one of the top sailfish destinations in the world. During peak season (December–April), boats regularly release 5–15 sailfish per day. For a fight-to-size ratio, roosterfish are hard to beat — they're powerful inshore fighters unique to the Pacific coast. If you want to take dinner home, mahi-mahi and yellowfin tuna are excellent eating and plentiful year-round.
It depends on the species. All billfish (sailfish, marlin) and roosterfish are strictly catch-and-release by Costa Rican law, enforced by INCOPESCA. You can keep mahi-mahi, yellowfin tuna, wahoo, snapper, and grouper — your captain will fillet and bag them at the dock. Many local restaurants will even cook your fresh catch for you.
Size varies dramatically by species. Sailfish average 80–120 lbs, blue marlin run 250–600+ lbs (with occasional 1,000-pounders), and yellowfin tuna reach 60–200 lbs. Inshore, roosterfish hit 20–60 lbs, and snook run 10–30 lbs. Even "small" species like jack crevalle (15–35 lbs) put up a serious fight on light tackle.
Yes — bull sharks, blacktip sharks, and occasionally hammerheads are present in Tamarindo waters. They're more commonly encountered inshore near river mouths and estuaries. While not typically targeted by sport fishing charters, they sometimes show up as bycatch. Costa Rica has strict shark finning laws, and responsible charters release sharks unharmed.
The Costa Rica all-tackle record for black marlin — a 956-lb monster — was caught on Tamarindo Reef, just minutes from the beach. The broader Guanacaste coast (including nearby Flamingo and Papagayo) has produced IGFA records for Pacific sailfish, blue marlin, and roosterfish. At the inaugural IGFA Open at Marina Pez Vela (same coast), over 988 billfish were caught, with the winning team releasing 48 sailfish in a single day. Tamarindo is one of the top 5 billfish destinations on the planet.