Conditions

Fort Myers Red Tide: Status, Season & How to Check

Red tide is real but intermittent. Here is how to know in three minutes whether it will affect your beach day.

Last updated August 15, 2026Reviewed by Michael Torres, Adventure & Wildlife Editor

We do not publish live cell counts. Red tide changes daily and a stale number is worse than none. Use the official sources below, which are updated by the agencies that do the sampling.

Check live conditions

FWC Red Tide Current Status(opens in a new tab)

The official Florida Fish and Wildlife sampling map, updated twice weekly.

NOAA Gulf of Mexico HAB Forecast(opens in a new tab)

Respiratory irritation forecast by beach for the next 24–48 hours.

Visit Beaches (Mote Marine)(opens in a new tab)

Crowd-sourced hourly beach conditions including dead fish and coughing reports.

Lee County Beach Conditions(opens in a new tab)

County advisories, closures, and cleanup status.

What red tide actually is

Red tide on Florida's Gulf Coast is a bloom of Karenia brevis, a naturally occurring single-celled alga that produces brevetoxins. Those toxins kill fish and become airborne in sea spray, which is why the main symptom for visitors is respiratory irritation rather than anything from the water itself.

Blooms usually begin 10–40 miles offshore and are only a problem when wind and current carry them to the beach. That is why one Sanibel beach can be unpleasant while another five miles away is perfectly clear.

Seasonal risk by month

Red tide risk by season in Lee County
Months	Risk	What typically happens
January–March	Moderate	Blooms that formed in autumn can persist; westerly winds push them shoreward.
April–June	Low	Historically the cleanest stretch of the year on Lee County beaches.
July–September	Low to moderate	Blooms can initiate offshore but rarely reach the beach yet.
October–December	Highest	The classic bloom season. Most major Southwest Florida events peak in this window.

What to do if red tide hits your trip

Move, don't cancel

Blooms are patchy. Drive 10–20 minutes north or south and conditions are frequently completely different.

Switch to bayside water

Back bays, the Caloosahatchee, and the estuaries behind Lovers Key are usually unaffected — kayaking still works.

Go inland for a day

Six Mile Cypress Slough, the Edison & Ford Winter Estates, and the Shell Museum are all indoor or inland options.

Ask your hotel

Beachfront properties monitor conditions hourly and will tell you honestly — a bad beach day is bad for them too.

Frequently asked questions

Is there red tide in Fort Myers right now?

Red tide conditions change every few days, so always check the FWC status map and Mote Marine's Visit Beaches report on the morning of your beach day. Neither Fort Myers nor Sanibel has red tide most of the time — the average beach is clear the large majority of the year.

What does red tide feel like?

At the beach, red tide usually presents as a scratchy throat and a dry, persistent cough within minutes of arriving, sometimes with dead fish along the tide line and a faint discoloration of the water. Symptoms stop shortly after you leave the beach.

Is it safe to swim during red tide?

Swimming during a red tide bloom is not recommended. Most healthy people experience only skin and eye irritation, but anyone with asthma, COPD, or another chronic respiratory condition should stay away from affected beaches entirely.

Which Fort Myers beaches are least affected by red tide?

Blooms are patchy and can hit one beach while sparing another a few miles away. Bay-side and inland-water spots — Lovers Key's back bay, the Caloosahatchee waterfront downtown, and the Sanibel bayside — are typically much less affected than open Gulf beaches.

Can you eat seafood during red tide?

Restaurant seafood is safe: commercial shellfish harvesting is closed during blooms and finfish are tested. Do not eat shellfish you have collected yourself from affected water.