Lee County·Southwest Florida·Gulf Coast
Sanibel Island Beach water quality history
This page gives swimmers deeper historical context for Sanibel Island Beach: recent readings, spike frequency, and how often the displayed station history has reached poor territory.
Current picture
GOOD on the latest sample at 10 CFU/100mL.
Recent-sample context
1 poor samples and 1 non-good samples in the displayed history.
Rain still matters
Stormwater can make this page stale faster than the normal testing schedule, especially after heavy rain.
Poor samples shown
1
out of 12 displayed samples.
Latest poor sample
June 22, 2026
This is the last time the displayed history shows a poor result.
Displayed-sample risk
8%
share of poor samples in the displayed history.
Water Quality History — Latest Samples
Sample source: Sanibel Island Beach
Values in CFU/100mL. Green = Good (≤35.4), Yellow = Moderate (35.5–70.4), Red = Poor (≥70.5)
Nearby Beaches With Lower Risk
Nearby alternatives →Fort Myers Beach
Lee County · Gulf Coast · 5 mi away
Nearby-station context from LYNN HALL PARK, about 0.6 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Bonita Beach
Lee County · Gulf Coast · 13 mi away
No poor samples in the displayed history · risk 0%
Delnor-Wiggins Pass State Park
Collier County · Gulf Coast · 16 mi away
No poor samples in the displayed history · risk 0%
Barefoot Beach Preserve
Collier County · Gulf Coast · 17 mi away
No poor samples in the displayed history · risk 0%
Naples Beach
Collier County · Gulf Coast · 25 mi away
No poor samples in the displayed history · risk 0%
Lovers Key State Park
Lee County · Gulf Coast · 10 mi away
No poor samples in the displayed history · risk 0%
Recent Warning-Sign Samples
Full history →June 22, 2026
164 CFU/100mL · POOR
How To Use This Page
This page gives swimmers deeper historical context for Sanibel Island Beach: recent readings, spike frequency, and how often the displayed station history has reached poor territory.
Use this view as a decision aid, not a guarantee. The latest sample, visible runoff, and recent weather still matter more than any single list or chart.
If you want the main same-day answer instead, go back to the Sanibel Island Beach beach page.
Data from FL DOH Healthy Beaches Program. This is an independent project, not official real-time clearance — check with Florida DOH for official conditions.