Jaco Fishing Report – April 2026

April is one of those months when Jaco makes fishing look easy. I do not say that every month. Some months you grind. Some months you run, search, adjust, and still have to earn every bite. April 2026 was different. The water was blue, the ocean was mostly calm, visibility was excellent, and there was enough life offshore that even first-timers had a real shot at a good day.

If you came to Jaco in April and went fishing, chances are you saw action. Mahi mahi were around in numbers. Sailfish were active offshore, especially in the 15 to 25 mile range. Yellowfin tuna were easier to find when the birds were working. Roosterfish stayed consistent inshore around rocks and points. The Los Sueños fleet also had some blue marlin reports mixed in, which is always good to hear even when not every boat gets one.

Quick April 2026 bite summary

• Water: blue, calm, and clean.
• Mahi mahi: strong numbers, multiple fish per trip common.
• Sailfish: active offshore, especially 15–25 miles out.
• Yellowfin tuna: under birds when bait was pushed up.
• Roosterfish: consistent around rocks and points.
• Marlin: some blue marlin reports from the Los Sueños fleet.
• Best for: first-timers who want action and comfortable sea conditions.

The water was the first good sign

In April, we had the water color captains want to see. Blue water. Good visibility. Clean current edges. When the ocean looks like that off Jaco and Herradura, everyone on the boat starts paying attention.

Blue water does not catch fish by itself, but it gives you confidence. It helps offshore species feed better. It makes it easier to spot birds, floating debris, bait showers, and surface movement. It also makes the day more comfortable for guests.

The dry season sea conditions helped too. We had calm mornings, easier runs offshore, and more days where guests could enjoy fishing without fighting the ocean. That matters for families, first-timers, and anyone nervous about getting offshore.

Mahi mahi were in numbers

The main action in April came from mahi mahi, also called dorado here. We had multiple-catch days regularly. Some trips found them on debris. Some found them under birds. Some found them along current lines where bait was stacked.

This is the kind of bite that makes a boat feel alive. One rod goes off, then another. Someone is clearing lines, someone is laughing, someone is trying to understand how a fish that colorful came out of the ocean.

Mahi mahi are perfect for mixed groups. They fight hard, they jump, they look beautiful in photos, and they are one of the best fish to bring back for dinner. In April, the fish were not just random singles. We saw enough numbers that the dorado bite became one of the strongest parts of the month.

Sailfish were active offshore

Sailfish stayed active in April, especially offshore between 15 and 25 miles. That range mattered. Some days we did not need to run forever, but we did need enough time and distance to reach the better water.

This is why full day trips are usually the better call for sailfish. A half day can catch fish, but when the sailfish are sitting farther offshore, you do not want to spend half the trip running and then have to turn around just when the water starts looking right.

In April, the better sailfish days came when we had clean water, bait, and calm conditions. Trolling through the right water gave us chances. Some days the bites came fast. Other days we had to stay patient.

Yellowfin tuna under birds

Tuna was fun in April because the birds helped us. When yellowfin are pushing bait, the birds tell the story before the fish do.

We looked for birds working tight and low. Not lazy birds. Not birds just floating around. Real working birds. When we found that, we had shots at tuna. Some days they were easy to find. Other days they moved fast and made us work.

In April, the yellowfin were part of why offshore trips felt so good. Even if someone booked hoping for mahi or sailfish, finding tuna under birds added another level to the day.

Roosterfish stayed consistent inshore

While the offshore bite got a lot of attention, inshore fishing was also solid in April. Roosterfish were consistent around rocky structure, points, and areas with bait movement.

Inshore fishing around Herradura can be a smart call in April for guests who do not want a long offshore run. If you are staying in Jaco with kids, or if your group wants a shorter private charter, roosterfish gives you a real target close to home.

Blue marlin reports from Los Sueños

There were some blue marlin reports from the Los Sueños fleet in April. That does not mean every boat caught marlin, and it does not mean a guest should book one trip and assume marlin is automatic.

But when marlin are being reported by the fleet, captains pay attention. It tells us the right kind of water is around. It tells us bait is there. It tells us the offshore conditions are good enough for big fish to be present.

Why April is great for first-timers

If someone has never been offshore fishing in Costa Rica, April is one of the best months to try. The reason is not just fish. It is the whole setup: calmer sea, cleaner water, better weather, and several species active at the same time.

A first-timer does not always need a giant marlin to have a great day. They need action. They need a safe, comfortable boat. They need a captain who knows when to change the plan. April gives us mahi, tuna, sailfish, roosterfish, and the chance at bigger surprises.

Half day or full day in April?

In April, both can work. A half day is good if you want a shorter trip, have kids, or want to stay closer around Herradura and nearby inshore water. You can also catch mahi on a half day when the bite is close enough.

A full day is better if you want sailfish, tuna, marlin chances, or more consistent offshore action. The extra time lets us reach better water, stay on birds longer, and work multiple areas if the first one does not produce.

If April is your only fishing day in Costa Rica, I would do the full day. You are already here during one of the best months. Give yourself the better shot.

Final thoughts on April 2026

April 2026 was a strong month for Jaco fishing. Mahi mahi came in numbers, sailfish were active offshore, tuna showed under birds, roosterfish stayed consistent inshore, and marlin made some noise in the Los Sueños fleet.

Send us a WhatsApp before you book, tell us your dates and what you want to catch, and we will tell you straight whether a standard boat from Herradura or a premium boat from Los Sueños Marina makes the most sense.

A few local notes from April

April is also when guests sometimes get overconfident because the ocean looks easy. Calm water and blue color are a gift, but you still have to fish correctly. The boats that paid attention to birds, floating debris, and bait did better than boats that just dragged lines through empty water because the conditions looked pretty.

If you are planning April, book earlier than you think. It is one of the busier travel months around Jaco, Herradura, and Los Sueños, and the good boats do not stay open forever. I would rather have a guest lock in the right boat early than wait until the last minute and be forced into whatever is left.