Red Tide Update
Published on September 30, 2025
Wednesday, September 24, 2025
Provided by: Collier County Pollution Control
Current conditions:
Below are the most recent sample results. No reports of respiratory irritation or fish kills have been received.
Forecast:
No red tide impacts are expected at this time.
To get the red tide respiratory forecast, please visit https://habforecast.gcoos.org. To get the current beach conditions, please visit https://visitbeaches.org.
The next sample collection will be Monday, Sept. 29, 2025. Results may be available late Tuesday, Sept. 30, 2025.
To report dead fish, call the Florida Fish and Wildlife Fish Kill Hotline at (800) 636-0511. To speak to a health professional regarding red tide symptoms, call the Florida Poison Information Center toll free at (800) 222-1222.
To view current Health Alerts issued by the Collier County Department of Health, please visit the https://collier.floridahealth.gov/alerts.html.
For more red tide information, visit www.collier.gov/redtidestatus.
To access the statewide red tide sampling map, please visit https://gis.myfwc.com/redtidecurrentstatus/
To access the most recent NOAA satellite imagery showing the location of red tide, please visit https://coastalscience.noaa.gov/science-areas/habs/hab-forecasts/gulf-of-mexico/florida-satellite-imagery/.
To get red tide respiratory forecasts updated every 3 hours, visit https://habforecast.gcoos.org/
Collier County Red Tide Update
|
Sample Date
|
Location
|
*Results
|
Sampling Agency
|
|
9/22/2025
|
Barefoot Beach
|
NOT PRESENT
|
Pollution Control
|
|
9/22/2025
|
Vanderbilt Beach
|
NOT PRESENT
|
Pollution Control
|
|
9/22/2025
|
Seagate Beach
|
NOT PRESENT
|
Pollution Control
|
|
9/22/2025
|
Naples Pier
|
NOT PRESENT
|
Pollution Control
|
|
9/22/2025
|
South Marco Beach
|
NOT PRESENT
|
Pollution Control
|
*KEY TO RED TIDE LEVELS—Table provided by Florida
Wildlife Research Institute (FWRI)
|
|
Description
|
Karenia brevis cells/L
|
Possible Effects (Karenia brevis only)
|
|
NOT PRESENT – BACKGROUND
|
0 – 1,000
|
None anticipated
|
|
VERY LOW
|
>1,000 – 10,000
|
Possible respiratory irritation; shellfish harvesting closures ≥ 5,000 cells/L
|
|
LOW
|
>10,000 – 100,000
|
Respiratory irritation; possible fish kills and bloom chlorophyll probably detected by satellites at upper range
|
|
MEDIUM
|
>100,000 – 1,000,000
|
Respiratory irritation and probable fish kills
|
|
HIGH
|
>1,000,000
|
As above plus discoloration
|