Fishing Seasons in Islamorada: The Complete Guide for 2026

Fishing Seasons in Islamorada: The Complete Guide for 2026 Reading Time: 8 minutes

Islamorada sits between the Atlantic Ocean and Florida Bay in the Upper Florida Keys, and it has earned its nickname – the “Sport Fishing Capital of the World.” Situated between Key Largo and Marathon, this stretch of islands offers access to both the Atlantic Ocean and the Gulf of Mexico.

An aerial view of Islamorada, Florida, showing a bridge connecting the Keys.

The unique geography provides diverse fishing environments, including flats, backcountry, reefs, and offshore waters. With the Gulf Stream riding close to shore, the Islamorada Humps rising from the deep just 15 miles out, and miles of wadeable flats on the Florida Bay side, this area packs more variety into a single zip code than most entire coastlines.

That variety means there’s no dead season here. Every month brings its own targets. Winter is Sailfish, summer is Mahi Mahi, fall is Wahoo, and Blackfin Tuna bite all year. Whether you’re planning a fishing charter in Islamorada around a specific species or just looking for the best window to visit, this guide breaks down Islamorada’s fishing seasons month by month so you know exactly what to expect.

What can I expect from Islamorada’s fishing seasons?

An angler in a blue shirt and hat holds a Bonefish above the water while leaning over the edge of a boat on the Islamorada flats. — Photo courtesy of Sunup Sundown Sportfishing

Islamorada’s fishing calendar stays busy year-round thanks to warm subtropical waters and quick access to the Gulf Stream. The table below shows how each major species performs month by month, from the winter Sailfish run to the summer Mahi Mahi blitz and the fall Wahoo bite.

Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sailfish	Great	Great	Good	Fair	Weak	Weak	Weak	Weak	Weak	Fair	Good	Great
Mahi Mahi	Weak	Weak	Weak	Fair	Great	Great	Good	Good	Fair	Fair	Weak	Weak
Tarpon	Weak	Weak	Fair	Good	Great	Great	Good	Fair	Fair	Fair	Weak	Weak
Blackfin Tuna	Good	Good	Good	Great	Great	Great	Good	Good	Good	Good	Good	Good
Wahoo	Great	Great	Fair	Fair	Fair	Fair	Fair	Fair	Fair	Good	Great	Great
King Mackerel	Great	Great	Great	Fair	Weak	Weak	Weak	Weak	Fair	Good	Good	Great
Yellowtail Snapper	Good	Good	Good	Good	Great	Great	Great	Great	Good	Good	Good	Good
Mutton Snapper	Fair	Fair	Great	Great	Great	Good	Fair	Fair	Fair	Fair	Fair	Fair
Gag Grouper	Closed*	Closed	Closed	Closed	Good	Great	Great	Closed	Closed	Closed	Closed	Closed
Black Grouper	Closed*	Closed	Closed	Closed	Good	Great	Great	Good	Good	Good	Good	Good
Permit	Good	Good	Good	Great	Great	Fair	Good	Good	Great	Great	Good	Good
Bonefish	Fair	Fair	Good	Good	Good	Good	Great	Great	Great	Good	Good	Fair
Swordfish	Good	Good	Good	Good	Great	Great	Great	Great	Good	Good	Good	Good
Cobia	Great	Great	Great	Fair	Weak	Weak	Weak	Weak	Weak	Weak	Good	Good
Snook	Good	Good	Good	Good	Great	Great	Great	Great	Great	Good	Good	Good
Barracuda	Great	Great	Great	Good	Good	Good	Good	Good	Good	Good	Good	Good

*Grouper closed to harvest as per Atlantic/Monroe County regulations

Seasonal Harvest Regulations

This seasonality chart shows when local species are active, but not necessarily open to harvest. For legal seasons and catch limits, always refer to the latest regulations posted by the FWC. Specific rules to watch out for pertain to Permit, Snook, Hogfish, and various Groupers. All Bonefish and Tarpon fishing in Florida is catch-and-release.

Keep in mind that Islamorada falls within the Florida Keys National Marine Sanctuary, and certain areas – including Sanctuary Preservation Areas – prohibit fishing entirely.

What fish are in season in Islamorada right now?

No matter when you’re reading this, something is biting in Islamorada. The reviews below show what anglers have been catching recently on Islamorada fishing charters – a real-time snapshot of what’s happening on the water.

Recent Islamorada Catches

Fresh fishing reports from anglers

Islamorada Fishing Seasons by Month

The heart of this guide is right here – a month-by-month breakdown of what’s biting in Islamorada, where to find it, and how to catch it. Each month covers offshore, reef, and flats or backcountry action so you can plan the right trip for your targets.

January

Two people in hats and sun shirts are holding a Snook on a boat during Islamorada's winter fishing season. — Photo courtesy of Sunup Sundown Sportfishing

January is prime time for Sailfish in Islamorada. Cold fronts push bait south, concentrating fish along the reef line in 80–400 feet of water, and kite fishing takes center stage. King Mackerel and Wahoo also patrol the reef edge, while Blackfin Tuna hold steady at the Humps.

In the backcountry, cooler water temps around 74°F push Snook and Redfish into channels and deeper mangrove pockets. Cobia begin showing up on the flats, following Stingrays along the sandy bottom. It’s also a solid month for Yellowtail Snapper on the reef – night trips are especially productive.

February

A fly angler sitting on a skiff boat holding a Spotted Seatrout that he caught while flats fishing in Islamorada. — Photo courtesy of Sunup Sundown Sportfishing

The Sailfish bite stays strong in February, and many of Islamorada’s biggest sailfishing tournaments take place this month. Cold fronts often trigger solid Wahoo fishing as well, especially around the full moon. King Mackerel run thick along the reef, and Cobia fishing picks up as more rays move through the flats and channels.

On the bottom, Mutton Snapper start to feed more aggressively as water temps creep toward 74–76°F. This is also a great month for Barracuda on the reef and flats. Backcountry anglers can target Snook, Redfish, and Speckled Trout in the mangrove-lined creeks of Florida Bay.

March

A man in a cap and sunglasses sits on a boat deck in Islamorada, holding a Cobia across his knees. — Photo courtesy of Bean Sportfishing

March is a transition month – and one of the most exciting on the Islamorada fishing calendar. Sailfish taper slightly but are still catchable, while the spring push of Mahi Mahi and Blackfin Tuna starts to build offshore. King Mackerel are still running, and Cobia hit their peak along the flats.

This is also the beginning of Tarpon season. Early fish show up in the backcountry and around local bridges. Mutton Snapper are heating up on the reef as their spring spawning aggregation builds.

April

Two men out on the open water during Islamorada's Tuna fishing season, one of them holding a Blackfin Tuna in his hands. — Photo courtesy of A Fishing Guru

April brings a surge of variety. Tarpon become more consistent through the bridges and channels, and offshore the first Mahi Mahi of the season begin appearing under weedlines and floating debris. Sailfish are still around – some years April can produce great late-season fish.

Blackfin Tuna fishing is strong at the Islamorada Humps, and Mutton Snapper are in full spawning mode on the reef. On the flats, Permit are active before heading offshore to spawn, offering shots on sight-cast live crab. Grouper season opens on the reef in May, so April is the last month of the shallow-water Grouper closure.

May

Two men on a center console boat holding up a large Tarpon that they caught during the summer fishing season in Islamorada, FL. — Photo courtesy of A Fishing Guru

May might be the single most diverse month on Islamorada’s fishing calendar. The Tarpon migration peaks this month, with fish over 100 lb stacking up at bridges like Channel 2 and Channel 5. Guides fish live bait and fly in the basins and channels.

Offshore, Mahi Mahi are in full swing under the weedlines. Blackfin Tuna run strong at the Humps, and Mutton Snapper spawning aggregations make reef fishing outstanding. Grouper season opens – anglers can start keeping Gag and Black Grouper on the reef. Swordfish deep-drop trips are consistently productive as warmer currents push bait into the 1,500–1,700′ depths off the continental shelf.

June

Three men on a boat hold up a large Mahi Mahi between them, showing off their catch in Islamorada. — Photo courtesy of Renegade Fishing Charters

Summer settles in, and the water calms down. Calm seas mean longer runs, more variety, and smoother days on the water. Mahi Mahi are at or near peak, with big bulls cruising the weedlines offshore.

Tarpon are still around, though the peak has passed. On the flats, Bonefish begin their summer run – remember, Bonefish are catch-and-release only in Florida. Yellowtail Snapper fishing is excellent on the reef, and Grouper fishing is in full swing. The West Hump holds large Blackfin Tuna during early June.

July

A man fishing the Islamorada flats kneels in shallow water, smiling as he holds a Bonefish tin both hands. — Photo courtesy of Sunup Sundown Sportfishing

July is peak reef and Snapper season. Water temps climb to around 86°F, and Yellowtail Snapper are everywhere – night fishing with chum on the reef is a local favorite. Mahi Mahi are still biting offshore, though the schools start to scatter compared to June.

On the flats, Bonefish fishing is excellent. Warm, shallow grass flats draw them in on rising tides, and this is prime time for fly fishing in the Florida Keys. Snook are active in the mangroves, and Permit start returning to the flats after their spawn. Deep sea fishing in Islamorada remains strong, with Swordfish and Blackfin Tuna available on dedicated trips.

August

Three men on a boat near Islamorada hold a large Swordfish across their chests on a sunny day during the summer fishing season. — Photo courtesy of Renegade Fishing Charters

August brings the calmest seas of the year. Water temps peak near 87°F, and slick-calm mornings are common – ideal for deep-drop trips. Swordfish fishing is outstanding, with drops to 1,500+ feet producing fish in the 50–600 lb range.

Mahi Mahi are still around but more scattered offshore. Yellowtail Snapper and Grouper stay strong on the reef, and the flats produce Bonefish at their peak. Permit are back on the flats and feeding. Fewer anglers are on the water in August, so if you don’t mind the heat, it’s a rewarding month.

September

A man holding up two Permit fish by their tails as he grins on a boat on the Islamorada flats. — Photo courtesy of Sunup Sundown Sportfishing

September is the locals’ month. Tourist crowds thin out, rates dip, and the fishing stays strong. Yellowtail Snapper and Grouper are reliable on the reef. Offshore can be hit or miss, but early fall Mahi Mahi show up around debris, and Blackfin Tuna stay steady at the Humps.

The flats come alive. Bonefish are at peak numbers, and Permit fishing is excellent – many anglers consider fall the best season for sight-casting Permit on the flats. Snook are active in the backcountry. This is a great month for a flats fishing trip if you want fewer boats and prime conditions.

October

A man in sunglasses and a blue long-sleeve shirt’s holding a Crevalle Jack fish on a boat during the Islamorada fishing season, a bridge and the coastline just behind him. — Photo courtesy of A Fishing Guru

October is when the seasonal transition hits. Water temps drop from the mid-80s into the low 80s, and that shift triggers movement across the board. Wahoo begin showing up around the full moon phases, with schoolie Mahi Mahi still offshore and solid Snapper action on the reef.

King Mackerel start running along the reef edge again. Blackfin Tuna stay reliable at the Humps. On the flats, Jack Crevalle, Permit, and Bonefish are still in great shape, and Redfish get more active as cooler water pushes through Florida Bay. Fishing pressure is light, and early Sailfish start showing up by late October.

November

Two men on a boat holding a large Wahoo caught during the Islamorada fishing season. — Photo courtesy of Renegade Fishing Charters

November is what locals call “everything season.” Cool fronts start rolling through, pushing pelagics closer to shore. Wahoo fishing builds steadily, especially around the full moon – the two weeks leading up to the November full moon can produce exceptional results. Blackfin Tuna, King Mackerel, and early Sailfish are all biting.

Cobia start appearing on the flats again, following rays in the shallows. Yellowtail Snapper stay consistent on the reef. Snook and Redfish are reliable in the backcountry. It’s an outstanding all-around month with lighter crowds and pleasant weather.

December

Three people on a boat deck out on the bluewater are holding a large Sailfish they caught during the Islamorada fishing season. — Photo courtesy of Renegade Fishing Charters

December marks the return of Sailfish season in full force. Kite season begins, and Sailfish start chasing ballyhoo along the reef edge. King Mackerel and Wahoo are both biting well, and Blackfin Tuna remain steady offshore.

Cobia are active on the flats, and Snook hold in backcountry channels. Cooler water pushes Redfish into the shallower reaches of Florida Bay – some of the largest Redfish of the year show up in the backcountry during December cold fronts. It’s a strong start to the winter fishing season in Islamorada.

Islamorada Fishing Seasons: Your Turn to Cast

Two men leaning over the edge of a boat holding a large Tarpon in the water during the Islamorada fishing season. — Photo courtesy of Sunup Sundown Sportfishing

Islamorada isn’t just a destination – it’s a year-round fishery that rewards anglers no matter when they show up. From winter Sailfish to summer Mahi Mahi, from spring Tarpon to fall Wahoo, and from Swordfish in the deep to Bonefish on the flats, there’s always a reason to fish here. The key is matching your trip dates to the species you want most.

Islamorada Fishing Seasons FAQs

What is the best month to fish in Islamorada?

There’s no single best month – it depends on what you’re after. For the widest variety, April through June is hard to beat: Tarpon migration overlaps with Mahi Mahi season offshore, Blackfin Tuna at the Humps, and the tail end of Sailfish. If you prefer fewer crowds and consistent action, September through November is a local favorite. The water is warm, the flats are loaded with Bonefish and Permit, and by November Wahoo and early Sailfish are biting offshore.

Can you fish in Islamorada year-round?

Yes. Islamorada’s subtropical location and proximity to the Gulf Stream mean something is always biting. Blackfin Tuna at the Humps and Swordfish in the deep are true 12-month fisheries. Whatever month you pick, the Humps hold Tuna, overnight Swordfish trips run whenever the weather opens a window, and Yellowtail Snapper hold on the reef. Even winter – the “slowest” season inshore – delivers world-class Sailfish action offshore.

Do I need a fishing license for Islamorada?

On a licensed charter, the captain’s license covers all passengers – you don’t need to buy your own. If you’re fishing from shore, a kayak, or your own boat, anyone 16 or older needs a Florida saltwater fishing license. Florida also offers several free fishing days throughout the year – check FWC for current dates.

When is Sailfish season in Islamorada?

Sailfish are present year-round, but the prime window is December through March. Kite fishing – suspending live Goggle-eyes, Blue Runners, or Threadfin Herring from a kite so they skip on the surface – is the dominant technique. Cold fronts that push bait along the reef edge create the best conditions. Several high-profile Sailfish tournaments run in January and February, drawing anglers from around the world. Water temps during peak season hover around 74–76°F.

If you’re ready to plan your Islamorada fishing trip, FishingBooker makes it easy to find the right charter. Browse fishing charters in Islamorada, filter by trip type and group size, and pick the one that fits your targets and your schedule.

The concept and outline of this article were created by people engaged by FishingBooker. Artificial intelligence tools were used to flesh out and reformat information into a blog article. Before being published, this article was edited and fact-checked by FishingBooker staff.

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