Costa Rica Fishing Report: September 2025 – Los Sueños "Green Season"…
Browse All

Costa Rica Fishing Report - September 15, 2025

Date Published:
sept 15, 2025
Costa Rica Fishing Report - September 15, 2025

Costa Rica Fishing Report - September 15, 2025

Ready to experience the thrill of world-class sportfishing on the pristine waters of Los Sueños, Costa Rica? September 2025 promises an exciting blend of vibrant marine life and unique "Green Season" advantages. Join Adventure Tours Costa Rica for an unforgettable day where calm seas meet active bites.

September's Secret: Calm Seas & Active Fish in Jacó & Los Sueños

While September falls within Costa Rica’s renowned "Green Season," this month holds a special secret for anglers: some of the calmest waters of the year. Average wind speeds typically remain below 5 MPH, ensuring a comfortable and smooth ride out to the prime fishing grounds from Los Sueños Marina.

Underneath the surface, the conditions are equally inviting. Average water temperatures in the Los Sueños and Jacó areas hover in the low 80s Fahrenheit, creating an ideal environment for a diverse array of highly sought-after species. Our experienced captains know these waters intimately and leverage these conditions for successful charters.

Yellowfin Tuna: Ready for the Fight

Fishing Trip at Los Suenos

With Costa Rica's landmark Tuna Reform continuing to bolster tuna populations, September 2025 is an excellent time to target impressive Yellowfin Tuna. While the average size may show a slight seasonal decline, it's not uncommon for our elite fishing charters to land Yellowfin weighing well over a hundred pounds, providing an exhilarating battle for any angler.

Marlin & Sailfish: Still Thrilling the Pacific Coast

Even though September is technically considered the "off-season" for the larger concentrations of Blue, Black, and Striped Marlin, the Pacific Coast of Costa Rica lives up to its reputation for consistently fruitful waters. Our expert crews operating from Los Sueños Marina are still regularly encountering these magnificent billfish. It's a testament to the rich biodiversity of these offshore waters that an epic battle with a Marlin or Pacific Sailfish is always on the menu, even during the Green Season.

Fishing in the Rain? Embrace the "Green Season" Advantage

September is often noted as the rainiest month in Costa Rica, but don't let that deter your fishing plans! "Rainy days" typically mean short, refreshing showers, often in the afternoon, with average precipitation around 0.01 inches. More importantly, these cloudy conditions can be a significant advantage for anglers.

Overcast skies, prevalent for approximately 78% of the day in September, tend to make fish more active and eager to feed. This increased feeding activity translates to more bites and a greater chance for a successful fishing experience. Our captains are seasoned professionals who prioritize your safety and comfort, ensuring you're well-equipped and expertly guided through any weather. Just bring light rain gear and get ready for the bite!

Inshore vs. Offshore: Tailoring Your Fishing Adventure

Charter at Los Suenos

Understanding the difference between inshore and offshore fishing is key to planning your perfect trip:

  • Inshore Fishing: Typically conducted on smaller, agile charter boats, inshore trips target the reefy and rocky areas near Los Sueños Marina. Here, you'll actively hunt for hard-fighting species like **Roosterfish**, **Snapper**, **Grouper**, and **Snook**. Live bait is often preferred, making for a dynamic and engaging experience close to the coast.
  • Offshore Fishing: For the ultimate deep-sea adventure, larger vessels take you several miles out into the Pacific. Armed with dead bait for trolling, you'll target magnificent billfish such as **Blue Marlin** or **Pacific Sailfish**, along with larger **Yellowfin Tuna** and **Dorado (Mahi-Mahi)**. Our crews are experts at reading the ocean and may even suggest bottom fishing if conditions and depth (around 100 feet) are ideal for species like amberjack or snapper.

Ready for the inshore or offshore fishing excursion of your life? Our team at Adventure Tours Costa Rica will help you select the perfect charter boat and experienced crew for your adventure, ensuring a personalized and unforgettable trip.


Book Your September 2025 Fishing Adventure Today!

Don't miss the unique opportunities that September fishing in Los Sueños offers. Experience calmer seas, active bites, and the expertise of Adventure Tours Costa Rica's premier captains and crews. Your trophy catch awaits!

Contact Us to Plan Your Trip | Read More Fishing Reports

Frequently Asked Questions About September Fishing in Los Sueños

  • Is September a good month for fishing in Costa Rica?
    Absolutely! While it's part of the Green Season, September often brings calmer winds and water, along with increased fish activity due to more overcast conditions. It's a fantastic time for both inshore and offshore species.
  • What species can I expect to catch in September?
    You can expect to target Yellowfin Tuna, Dorado (Mahi-Mahi), and even Marlin and Pacific Sailfish offshore. Inshore, Roosterfish, Snapper, and Snook are popular catches.
  • What should I wear for a September fishing trip?
    We recommend light, breathable clothing, a hat, sunglasses, and reef-safe sunscreen. Given the chance of rain, a light waterproof jacket or poncho is also advisable. Bring secure, non-slip shoes and a change of clothes for after the trip.
  • Do your charters provide all the necessary gear?
    Yes, all our fishing charters are fully equipped with top-of-the-line rods, reels, tackle, and bait. Our expert crew will handle all the rigging and provide guidance, so you just need to focus on fishing!