There isn’t one best month to fish Southwest Florida, because the water from Fort Myers Beach down to Naples and Chokoloskee holds different species at their best at different times, and two of the region’s biggest inshore fish, snook and gag grouper, have closed seasons that change what you can legally keep depending on the calendar. Here’s what’s actually regulated month by month, and the general seasonal patterns for the species that aren’t.
Three FWC rules matter more than anything else for planning a trip around Fort Myers, Pine Island, Estero, or Naples.
Snook in the region FWC calls the Charlotte Harbor Region, which covers state waters from near the Venice Municipal Airport south to near Vanderbilt Beach Road in Collier County, close for harvest December 1 through the end of February, and again May 1 through September 30. That leaves two open harvest windows: March 1 through April 30, and October 1 through November 30. Catch and release fishing for snook is legal whenever the season is closed. FWC’s slot for this region is not less than 28 inches or more than 33 inches total length, with a bag limit of one fish per person per day. Snook also require a snook permit on top of a recreational saltwater fishing license, and FWC notes that snook permit sales are final with no refunds even if the season is closed where you planned to fish.
Redfish in the same Charlotte Harbor Region are open year-round, with a slot of not less than 18 inches or more than 27 inches total length, a bag limit of one fish per person per day, and a two fish per vessel limit.
Gag grouper in Gulf state waters, outside Monroe County, opened under a 2026 executive order for a single window: September 1 through September 30, 2026, closing at 12:01 a.m. on October 1. FWC’s general limits for the species are a 24 inch total length minimum and a bag limit of two fish per person within a four grouper aggregate. Outside that September window, gag grouper harvest in Gulf state waters is closed for the rest of the year under this order.
Spotted seatrout moved to a nine-region system under the management approach FWC adopted in 2026. Fort Myers, Cape Coral, Pine Island Sound, Estero Bay and Charlotte Harbor sit in the Charlotte Harbor Region; Naples south through Marco Island, the Everglades and Monroe County sit in the Southwest Region. Both regions carry identical seatrout rules, so the practical answer is the same either way: open year-round, a slot of not less than 15 inches or more than 19 inches total length, one fish over 19 inches per vessel or, fishing from shore, per person, and a daily bag limit of three fish per person.
This is snook’s closed season in the Charlotte Harbor Region, so catch and release only for that species. It’s also when sheepshead fishing peaks locally as cooler water pushes fish onto pilings, seawalls and dock structure in tighter, more concentrated groups, a pattern covered in more detail on our sheepshead fishing guide. Redfish and spotted seatrout stay open and catchable on the flats throughout winter since neither species carries a seasonal closure here.
Snook harvest reopens March 1 and stays open through April, making this one of the two legal harvest windows for the species all year in this region. Redfish and trout remain open as they are year-round.
Snook harvest closes again May 1 and stays closed through the summer. Redfish and trout fishing continues uninterrupted. Anglers around Boca Grande and Charlotte Harbor generally report tarpon activity picking up through this stretch as fish move into the passes, though the exact timing varies year to year and isn’t something FWC tracks as a regulation, so treat it as a general pattern rather than a fixed date.
Snook remain closed for harvest. This is also peak heat, and inshore species tend to feed heaviest early and late in the day rather than through the middle of it. Redfish and trout stay open under their year-round rules.
Gag grouper’s single 2026 harvest window falls entirely in September, open September 1 through September 30 in Gulf state waters outside Monroe County. Snook harvest is still closed through September 30. This is the one month of the year where the gag grouper decision actually matters for a Southwest Florida trip, since outside this window keeping one is not legal here.
Snook harvest reopens October 1 for the calendar year’s second window and runs through November 30, closing again December 1. Gag grouper harvest closes for the remainder of the year on October 1 under the 2026 executive order. Redfish and trout stay open under their standing year-round rules straight through the rest of the year.
If a single species is the reason for the trip, the calendar matters. Snook can only be legally harvested in this region during two windows, March 1 through April 30 and October 1 through November 30, per FWC’s Charlotte Harbor Region rule. Gag grouper has exactly one harvest month in 2026 under the current executive order. Redfish and spotted seatrout, by contrast, are legal targets in this region every month of the year within their standing slot and bag limits, which makes them the two species worth building a trip around regardless of season.
See our season and regulation calendar for the full current picture across every species this site covers, our regulations page for complete current limits, and our Southwest Florida fishing license guide for what residents and visitors need before heading out. Our snook season guide covers that species’ closures in more depth.