April 2025 Florida Keys Fishing Report: Offshore Fishing in Marathon, FL

By: Bob Garan April 2025

Looking to find out what’s biting in the Florida Keys this April? Our latest fishing report from Marathon, FL brings you a full breakdown of our most recent offshore charter. From chasing mahi-mahi near the reef to deep dropping for grouper, here’s what the day looked like out on the water with Blue Skies Charter.

Preparing for Our Offshore Trip

We launched early morning from Marathon under ideal spring conditions—clear skies, light winds, and a solid crew ready to go. Our destination: the offshore waters of the Florida Keys, a prime zone for deep sea fishing in spring.

This trip focused on a mix of techniques: trolling for mahi-mahi, jigging for tuna, and deep dropping for grouper and snapper.

Trolling Near the Reef: Chasing Mahi-Mahi

We started by trolling along the reef line. It didn’t take long before we hooked into a solid mahi-mahi, which gave us the type of fight the Florida Keys are known for.

 

Bright colors, fast runs, and a clean gaff shot made this the perfect start to the day—and a great example of why mahi mahi fishing in Marathon Florida draws so many repeat visitors.

Angler holding a freshly caught fish on a Blue Skies fishing charter

Deep Dropping for Grouper

Next, we switched gears and dropped deep using heavy rigs and fresh bait. Within minutes, we landed our first Yellowedge Grouper. This species is a popular target for Florida Keys fishing guides, especially during spring.

This catch was a highlight for the day and a reminder of how productive the bottom fishing is just offshore from Marathon, FL.

Tuna Fishing at the Hump

To finish off, we headed to the Marathon Hump, a reliable spot for Blackfin Tuna. Vertical jigging brought steady action, with three solid tunas landed before heading back in.

It was a fitting end to a well-rounded day of offshore fishing in Marathon FL.

Final Catch & Conditions

Final Catch:

  • Mahi-Mahi 
  • Yellowedge Grouper
  • Blackfin Tuna 

The weather was perfect: calm seas and plenty of sun. Fishing was productive across all techniques and zones.

Angler holding a freshly caught fish on a Blue Skies fishing charter

Book Your Private Fishing Trip in Marathon, Florida

If you’re ready to explore the waters of the Florida Keys, our private fishing charters in Marathon, FL offer a premium experience. Whether it’s mahi-mahi, grouper, or tuna, we deliver results with professionalism and local expertise.

Thinking about your next trip?

If you’re looking for something more private, more tailored, and far from the usual, we’d be glad to help you plan your next day offshore—something that fits exactly what you’re looking for.