Best Fishing Season in Jaco, Costa Rica – What to Catch & When
Jaco, Costa Rica, is a dream destination for anglers, with year-round fishing and a rotating cast of game fish that includes sailfish, marlin, tuna, mahi-mahi, and roosterfish. Whether you’re planning a deep-sea adventure or an inshore half-day trip, understanding the fishing seasons can help you choose the best time to visit.
At Jaco Costa Rica Fishing Charters, we fish every month of the year, and this guide will show you when the action peaks for each species and style of fishing.

📅 Month-by-Month Fishing Calendar for Jaco
| Month | Offshore Highlights | Inshore Highlights |
|---|---|---|
| January | Peak sailfish, marlin possible | Roosterfish, snapper |
| February | Peak sailfish, great weather | Roosterfish, jacks |
| March | Sailfish, marlin show up, calm seas | Roosterfish, mackerel |
| April | Tuna, dorado, and sailfish return | Roosterfish, snook |
| May | Tuna bite heats up, dorado, and marlin are possible | Snapper, roosterfish |
| June | Big yellowfin tuna, dorado, blue marlin | Roosterfish, snook |
| July | Tuna, marlin, dorado | Roosterfish, cubera snapper |
| August | Peak tuna & marlin, good weather | Snook, roosterfish |
| September | Tuna, dorado, striped & blue marlin | Roosterfish, snapper |
| October | Big marlin, mahi-mahi, fewer boats out | Roosterfish, jacks |
| November | Tuna, dorado, sailfish return | Snook, roosterfish |
| December | Sailfish season begins, great mix of species | Roosterfish, snapper |
🎯 Peak Season by Species
✅ Sailfish: December – April
- Dry season is prime time for sailfish near Jaco and Los Sueños
- Calm seas and high visibility offshore
- Double-digit releases are possible during peak months
✅ Marlin: August – November
- Blue, black, and striped marlin show up near FADs and sea mounts
- Fewer boats = less pressure and more opportunity
- Book full-day or multi-day offshore trips for the best success
✅ Yellowfin Tuna: May – October
- Found in large schools with spinner dolphins
- Some fish reach 100+ lbs
- Best caught trolling or chunking live bait
✅ Mahi-Mahi (Dorado): May – November
- Especially good after heavy rains and around floating debris
- Bright colors and fast strikes
- Great table fare
✅ Roosterfish: Year-round (best May – November)
- Iconic inshore species known for strong fights and photo-worthy fins
- Found along rocky coastlines and river mouths
- Catch and release only
✅ Snapper (Cubera, Mullet): Year-round
- Best on incoming tides near reefs
- Targeted with live bait or jigs
- Excellent eating and great for family trips
🌤️ Weather Considerations
Jaco has two main seasons:
☀️ Dry Season (Dec–April):
- Calm seas, clear skies
- Peak time for offshore fishing (sailfish & marlin)
- Popular with tourists, so book charters early
🌧️ Green Season (May–November):
- Mornings are typically calm; afternoon showers are common
- Excellent for tuna, dorado, and inshore action
- Fewer crowds and lower prices
Fishing is productive 12 months a year — it just depends on what species you’re targeting.
👨👩👧👦 Who Should Fish When?
- First-time anglers: Feb–April or June–August (calm weather + good variety)
- Hardcore offshore anglers: Aug–Nov for marlin & tuna, Dec–April for sailfish
- Inshore & family trips: Year-round, with peak roosterfish May–Nov
- Cruise guests or short visits: Go for half-day inshore trips during any season
📩 Book Your Jaco Fishing Trip Based on the Season
At Jaco Costa Rica Fishing Charters, we help you choose the best trip based on the time of year, your skill level, and your fishing goals. Whether you’re here in peak sailfish season or chasing big tuna in the green season, we’ll match you with the right boat and captain.
📧 Email: [email protected]
🌐 Website: www.jacocostaricafishingcharters.com
📞 Call or WhatsApp: +506-8888-4723