Lee County·Southwest Florida·Gulf Coast
Should you swim at Captiva Island Beach after rain?
This page is built for the day when a beach looks tempting but recent rain makes the normal badge harder to trust. The displayed readings belong to SOUTH SEAS PLANTATION, about 0.3 miles away, and were not collected at Captiva Island Beach.
Current picture
MODERATE at SOUTH SEAS PLANTATION, the nearby station about 0.3 miles away, at 42 CFU/100mL.
Recent-sample context
1 poor samples and 2 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.
Wait window
72 hours
Use that as the default buffer after heavy rain before trusting routine samples too much.
Latest poor sample
July 20, 2026
A recent poor sample is a stronger reason to be conservative after runoff.
Displayed-sample spike risk
8%
Lower is better when weather makes your same-day decision harder.
Lower-Risk Nearby Options After Rain
Rain guide →Boca Grande Beach
Charlotte County · Gulf Coast · 16 mi away
No poor samples in the displayed history · risk 0%
Fort Myers Beach
Lee County · Gulf Coast · 16 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 · 25 mi away
No poor samples in the displayed history · risk 0%
Palm Island Beach
Charlotte County · Gulf Coast · 25 mi away
No poor samples in the displayed history · risk 0%
Barefoot Beach Preserve
Collier County · Gulf Coast · 28 mi away
No poor samples in the displayed history · risk 0%
Delnor-Wiggins Pass State Park
Collier County · Gulf Coast · 28 mi away
No poor samples in the displayed history · risk 0%
Water Quality History — Latest Samples
Sample source: SOUTH SEAS PLANTATION (nearby station for Captiva Island Beach)
Values in CFU/100mL. Green = Good (≤35.4), Yellow = Moderate (35.5–70.4), Red = Poor (≥70.5)
Recent Warning-Sign Samples
Full history →September 8, 2026
42 CFU/100mL · MODERATE
July 20, 2026
111 CFU/100mL · POOR
How To Use This Page
This page is built for the day when a beach looks tempting but recent rain makes the normal badge harder to trust. The displayed readings belong to SOUTH SEAS PLANTATION, about 0.3 miles away, and were not collected at Captiva Island Beach.
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 Captiva 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.