When To Book a Bahamas Deep Sea Fishing Trip — A Month-By-Month Guide
Anglers ask the same question every year: when is the best time to book a Bahamas deep sea fishing trip? The honest answer is that there is no off-season in our waters — but every month favors a different fish. This guide walks through what we target, when, and why, so you can plan a Harbour Island charter around the bite you actually want.
The short version
- Mahi-mahi: March – August (peak May – July)
- Tuna (yellowfin & blackfin): April – September
- Wahoo: November – February
- Sailfish: Year-round, peak December – March
- Blue marlin: May – August
- Bottom fishing (snapper, grouper): Year-round
Winter (November – February): wahoo season
Cooler water pushes wahoo onto the Harbour Island ledges in serious numbers. These are fast, hard-hitting fish — high-speed trolling at 12-15 knots produces strikes, and a single 60+ lb wahoo can fill a cooler. This is also the strongest stretch of the year for sailfish, which show up reliably along the deeper drop-offs.
Winter weather is usually settled with light easterlies, but cold fronts every 10 – 14 days can knock out a day. Book a 3 – 4 day window if you want guaranteed time on the water.
Spring (March – May): the transition
Spring is the most diverse fishing of the year. Wahoo are still around early. Mahi show up by mid-March and build through April. Tuna start by April. Sailfish are still aggressive. If your group cannot agree on what to chase — book spring.
Summer (June – August): mahi, tuna, marlin
This is the peak of pelagic season. Mahi run shallow on weed lines, tuna stack up on the deep ledges, and blue marlin show through July and August. Sea conditions are typically the calmest of the year. Summer is also our busiest season — book 4 – 6 weeks ahead, longer if you need a specific date around July 4th or the Bahamian Independence holiday.
Fall (September – October): the locals' secret
Fewer visitors, plenty of fish. Mahi linger into September, tuna stay active, and the wahoo bite starts building again by late October. Trade-off: you are inside hurricane season, so flexibility on dates matters. We watch the forecast hard and will reschedule rather than send you out in marginal weather.
Half day or full day?
If you want the best shot at trophy pelagics, a full day matters — we can run further to the deeper blue-water edges and work multiple structures. A half-day still produces fish, especially in the mahi months when the bite is closer to the dock. We rig the boat the same either way.
How far ahead to book
Holiday weeks (Thanksgiving, Christmas / New Year, Easter, July 4th) sell out 3 – 6 months ahead. Summer weekends fill up 4 – 6 weeks ahead. Off-season midweek dates often have availability inside 7 days, especially if you are flexible on the half-day vs full-day call.
Ready to plan a trip?
The fastest way to lock in a date is to send us your party size, target species, and rough window — we will confirm what is realistic for that week. Browse the fleet, read about our offshore charters, or message Captain Tré directly.