King mackerel in Sebastian, Florida

King mackerel run off Sebastian Inlet in the warm months: the weekly reports of the Sebastian Inlet District mention kingfish from late April through late September, with the fullest detail in July and September.

The district posts its fishing report each week under a heading such as Week of July 12, and the report pages carry the week and day but not the year. Read together, the kingfish notes on Sebastian Inlet reports form a clear arc. The earliest is the week of April 26, when the featured angler brought up a kingfish at the inlet on a greenie (week of April 26). In the week of May 23 the report said kingfish had been in the area for boats trolling large-lipped lures and drone spoons (week of May 23). By the week of July 5 there was a decent bite on kingfish in the 75 to 120-foot area around the bait pods (week of July 5).

Late summer brings the fish closer. The week of July 12 report described kingfish crashing schools of pogies just north of the Inlet in 20 to 30 feet of water (week of July 12). In September the fall mullet run moves down the Brevard and Indian River County beaches, and the week of September 13 report put the best kingfish action at 40 to 70 feet, with more fish closer to shore chasing mullet (week of September 13).

Kingfish reach Sebastian Inlet in summer because the species migrates north in warm months and south in winter, according to NOAA Fisheries.

The Atlantic stock spends winter far to the south. NOAA Fisheries reports that both the South Atlantic and Gulf stocks gather in a winter mixing zone in Monroe County, south of the Florida Keys, between November and March. That timing matches the empty winter months in the Sebastian Inlet reports. The same agency says king mackerel spawn on the outer continental shelf from May through October, and the Florida Museum of Natural History puts most spawning between May and September, the same window in which the district reports talk about kings off the Indian River County and Brevard County coast.

Bait is the other driver. The Sebastian Inlet District reports tie nearly every kingfish note to bait schools: glass minnow and pogy pods in July and August, then the fall mullet run in September. The week of September 26 report opens with the fall mullet run and lists kingfish being caught in 60 to 90 foot depths, with larger fish at 180 feet (week of September 26). NOAA Fisheries describes king mackerel as carnivores feeding on fish, squid and shrimp, and the Florida Museum lists mullet, Spanish sardines and anchovies among preferred prey, which explains why kings follow those schools past Sebastian Inlet.

Most kingfish noted in Sebastian Inlet District reports were caught in 40 to 130 feet of water and weighed 8 to 20 pounds, with occasional fish of 30 to 40 pounds.

Depth notes vary by week. The week of September 7 report said kingfish were still a good bet on the inshore and offshore reefs in 60 to 130 feet on trolled plugs and live baits (week of September 7). The week of September 12 report said the kingfish are everywhere from 70 to 90-foot depths at the reefs and ledges, with kings averaging 8 to 18 pounds (week of September 12). The week of August 30 report put kingfish from just offshore all the way out to 130 feet, averaging 8 to 12 pounds with some 30-pounders (week of August 30).

The biggest numbers came with the mullet. The week of September 13 report said the fish were averaging 10 to 20 pounds and some were upwards of 40 pounds, taken by slow trolling live mullet and pogies or large plugs and drone spoons off Sebastian Inlet. In the week of July 5, most fish were 8 to 15 pounds, with some up to 30 pounds, on sardines, live pilchards and live mullet.

Kings occasionally come within reach of the Sebastian Inlet State Park beaches. The week of July 14 report recorded king mackerel and cobia caught from the beach when the mullet are around (week of July 14), and the week of August 2 report placed a few smoker kingfish in the surf zone around the bait pods while a lot of small kingfish were being caught most everywhere offshore (week of August 2).

Off Sebastian Inlet, king mackerel fall under the Atlantic state waters rule: a 24-inch fork length minimum and a daily bag limit of 2 per harvester, with the season open year-round (FWC).

The Florida Fish and Wildlife Conservation Commission sets a higher bag of 3 per harvester only in Gulf state waters and Monroe County, so the Brevard and Indian River County coast near Sebastian uses the Atlantic number. Legal gear is hook and line and spearing only (FWC). NOAA Fisheries adds that gillnets are prohibited in Florida state waters and that state rules are fairly consistent with federal ones.

Management may change. As of October 10, 2026, the FWC king mackerel page notes that the South Atlantic Fishery Management Council is holding port meetings along the Atlantic coast on the king and Spanish mackerel fisheries, and that the input will directly affect future management. Anglers who fish from the Sebastian Inlet jetties also work beside an active channel: the Sebastian Inlet District asks them to yield to vessels and never cast at passing boats.

A small king mackerel caught at Sebastian Inlet can carry spots like a Spanish mackerel, but its lateral line dips sharply and the front of its first dorsal fin is gray, according to NOAA Fisheries.

The distinction matters at Sebastian Inlet because both species show up in the same summer reports, and the Spanish mackerel limits differ. The Florida Museum of Natural History describes the king mackerel as the largest species of mackerel in the Atlantic, usually 19.7 to 35.4 inches long, with a maximum reported size of 72.4 inches and 99 pounds and maximum recorded ages of 14 years for females and 11 for males. NOAA Fisheries gives a growth figure of up to 5.5 feet and 100 pounds and a life span of more than 20 years.

Names vary as well. The Florida Museum lists king mackerel, kingfish, carite and cavalla among its common names, and the Sebastian Inlet District reports use kingfish, kings and smoker kingfish, the last for especially large fish, interchangeably when describing the catch off Sebastian Inlet.

Sebastian anglers can read live wind data from NDBC station SIPF1 on the Sebastian Inlet State Park north jetty and wave data from buoy 41114 off Fort Pierce (NDBC).

The National Data Buoy Center lists SIPF1 as owned and maintained by the Florida Institute of Technology, a weather station on the north jetty. The nearest wave reading comes from station 41114, Fort Pierce, a Scripps Institution of Oceanography waverider south of Sebastian Inlet.

Weather ends the season. In the week of September 26 report, the Sebastian Inlet District printed its last offshore note until spring, explaining that at that time of year getting out there is largely dependent on the weather and seas, with little going on except sailfish and kings. The inlet itself shapes the trip: the district FAQ says the north jetty was extended to 1,000 feet in length after work completed in 2003, the south jetty is 575 feet long, and the inlet is one of only five navigable channels that connect the Indian River Lagoon to the Atlantic Ocean.