September in Cabo San Lucas. The sun is hot, the seas are warm, and the fish? Let’s just say, Cabo fishing charters targeting marlin and tuna in September are in their prime.
Picture this: you’re 10 miles offshore, the sky just turning gold with sunrise. Teasers skip across the wake behind a tournament-rigged sportfisher. Suddenly—boom—a striped marlin tail-walks across the surface. Minutes later, the reel starts screaming again as a 100-pound yellowfin peels line into the horizon.
That’s not a dream. That’s Blue Sky Cabo Fishing and Tours in September. Whether you’re planning a serious sportfishing adventure or a bucket-list vacation, this month gives you everything—tuna, marlin, dorado, wahoo, and more, all in one unforgettable window.
Let’s explore what makes Cabo fishing charters targeting marlin and tuna in September such a thrill, and why Blue Sky Cabo is the charter of choice for thousands of five-star anglers.
Why September is Prime Time for Marlin and Tuna in Cabo
September lands squarely in the “sweet spot” of Cabo’s offshore fishing calendar. The water temperature hovers around 82–86°F, ocean currents deliver rich nutrients and baitfish, and a full cast of pelagic species line up to feed.
For marlin hunters and tuna fanatics, it’s a month of high stakes and big rewards. With less tourist traffic and more aggressive fish, September offers some of the best chances of the year to hook into something massive.
What Species Can You Catch in September?
While this article focuses on marlin and tuna, part of what makes September so epic is the full spectrum of species you might encounter while out on the water.
1. Blue and Striped Marlin
- Where: Gordo Banks, Golden Gate Bank, 95 Spot, 1150 Spot
- Tactics: Slow trolling live skipjack, teasers and dredges, drone scouting
- Why September: Peak season. Warm water currents bring marlin close to the banks. Blues can hit 300–600 lbs.
2. Yellowfin Tuna
- Where: Outer banks, thermal edges, around floating debris
- Tactics: Helium kite fishing, balloon baits, cedar plugs, drone-deployed live baits
- Why September: Tuna schools run large and fast—30 to 150 pounds. Early morning and dusk bites are explosive.
3. Dorado (Mahi Mahi)
- Location: Floating logs, kelp paddies, nearshore current breaks
- Why They Matter: Aggressive, colorful, and great eating—dorado bring added fun and surprise
4. Wahoo
- Location: Deep drop-offs, points, and bluewater edges
- Why September Rocks: Wahoo get aggressive in warmer water, especially with the new moon current swings
5. Roosterfish & Snapper (Inshore Action)
- Inshore Bonus: Early morning runs along the East Cape can land you big roosters and snapper on light tackle
- Why It’s Relevant: Perfect for combo charters—start nearshore, then go deep for tuna and marlin
How the Moon Phase Affects Your Catch in September
Lunar cycles matter, especially when targeting pelagics like marlin and tuna.
- Full Moon: Excellent time for marlin. They feed heavily at night, then again at dawn. Tuna often bite deeper.
- New Moon: Great for tuna—bait stays near the surface longer. Early morning action is hot.
- Quarter Moons: Consistent tides. Ideal for dorado and wahoo, with more steady feeding windows.
Blue Sky Cabo Captains use Terrafin satellite charts and moon/tide forecasting to build custom strategies for every charter. Your trip isn’t luck—it’s designed to succeed.
Where Are the Best Fishing Spots Around Cabo in September?
When you book Cabo fishing charters targeting marlin and tuna in September, your playground includes the Sea of Cortez, Pacific Ocean, and underwater canyons surrounding the Baja tip.
Gordo Banks
Hotspot for monster tuna and blue marlin. Depths rise quickly, creating an ambush zone for big pelagics.
Golden Gate Bank
This Pacific-side structure draws striped marlin, tuna, and the occasional sailfish.
1150 Spot & 95 Spot
Deepwater banks where blue marlin roam. Excellent for trolling and kite fishing.
Land’s End to Chileno Bay
Perfect combo zone for dorado, wahoo, and even inshore roosterfish.

Blue Sky Cabo: The Top-Rated Marlin & Tuna Charter Experience
You can’t talk about the best Cabo fishing charters targeting marlin and tuna in September without mentioning Blue Sky Cabo Fishing and Tours. We’ve earned our reputation by doing things differently—and doing them better.
What Sets Blue Sky Cabo Apart?
- Privately Owned Boats (not brokered): 32’, 35’, 43’, 50’, and 60’ options
- Tournament-Grade Equipment: Dredges, teasers, drone baits, helium kite rigs
- English-Speaking, Expert Crews with decades of pelagic hunting experience
- All-Inclusive Comfort: Breakfast, open bar, optional gourmet lunch
- Starlink WiFi, Bluetooth Sound, and full media production of your trip
- Photos & HD Video using GoPros, Insta360, drones, and Ray-Ban Meta glasses
- On-Dock Manager: Greeting you at departure and return for personalized service
- Real-Time Satellite Data: Terrafin sea temps, chlorophyll, and current overlays to get you on fish fast
What Guests Are Saying
“Caught my first blue marlin and two big tuna in the same trip. This crew hustles! Drone bait drops were amazing to watch.”
— ⭐⭐⭐⭐⭐ TripAdvisor
“I booked a 50′ Viking with my friends for a bachelor trip. Blue Sky didn’t just deliver—they made it legendary.”
— ⭐⭐⭐⭐⭐ Google Review
“The highlight video blew my mind. They sent it to us 48 hours later and it looked like a Nat Geo episode.”
— ⭐⭐⭐⭐⭐ Facebook Review
“Named one of the Top 5 Fishing Charter Companies in North America.”
— 🏆 USA Today
With thousands of 5-star reviews across platforms, Blue Sky Cabo is the charter to trust when it comes to chasing marlin and tuna in September.
Insider Travel Tips for Cabo Fishing in September
- Pack Light Clothing – It’s hot and humid, but mornings offshore are crisp
- Polarized Sunglasses & SPF – Don’t leave the dock without them
- Charter Multiple Days – Conditions change daily. More days = more hookups
- Add the Media Package – You’ll regret not capturing these moments
- Consult the Moon – We help you book the best lunar windows for your target species
September Booking Essentials
Planning Cabo fishing charters targeting marlin and tuna in September? You’re not alone—this month is a favorite among seasoned anglers and big game tournament teams doing recon.
Lock in your trip early with Blue Sky Cabo for the best availability.
- Book now at www.cabofishings.com
- Departing daily from IGY Marina, Cabo San Lucas
- Rated 5 Stars on TripAdvisor, Google, Facebook, and featured by USA Today
Final Cast: September Delivers Marlin, Tuna, and More
Now that you know what to expect, the question isn’t if you should fish in September—it’s how many days can you fish.
Between monster yellowfin tuna, striped and blue marlin, aggressive dorado, and blazing-fast wahoo, Cabo fishing charters targeting marlin and tuna in September offer nonstop action and high-adrenaline strikes. And when you fish with Blue Sky Cabo, you’re not just another charter—you’re part of our crew.
This isn’t a tour. It’s an adventure. Let’s make it legendary.