South Walton, Destin and Okaloosa Island beaches all reported high numbers of jellyfish, while a Navarre beach official says things are calm in his area.
Scattered numbers of jellyfish have been seen drifting across the Gulf Coast.
David Vaughan, beach safety director for the South Walton Fire District, reported the largest swarms.
"People are getting lit," he said. "We had a big breeding season apparently, and they just kind of hung around for the better part of the end of the summer."
While Vaughan's district has basically flown purple flags warning of dangerous marine life every day since July 4, it doesn't appear that South Walton's floating visitors had moved east.
"No problem with jellyfish here," said Ruth Corley, spokeswoman for the Bay County Sheriff's Office. "Hopefully it won't happen."
Officials in other areas, including Destin and Okaloosa Island, reported jellyfish numbers that they said weren't out of the ordinary.
"The jellyfish are still around," said Corey Hill, a lieutenant with the Destin Fire Control District Beach Safety Division. "This weekend, (numbers) decreased actually ... but now they're back."
He and Okaloosa Beach Safety Chief Rich Huffnagle said ocean currents determine how many pests end up at each beach. They added that southern winds draw jellyfish to the coast.
"The Gulf has them, they're usually in the deeper waters, but currents are the driving force," Huffnagle said. "We've had years where it's just been loaded all summer long."
Austin Turnbull, beach safety director for Navarre Beach Fire Rescue, said jellyfish numbers have declined since earlier in the year.
When told that that they must have left Navarre Beach to go bother other areas, Turnbull replied, "They can stay over there. ... I don't like them.
"We've had a few, but it hasn't been as bad as it was a couple weeks ago," he said.
Turnbull, and other officials, said it was up to lifeguards to determine the levels of threat each morning. The most common species of jellyfish reported in the area was sea nettles, which can sting.