Sarasota County·Sarasota / Bradenton·Gulf Coast
Siesta Key Beach water quality history
This page gives swimmers deeper historical context for Siesta Key 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 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.
Poor samples shown
1
out of 12 displayed samples.
Latest poor sample
August 10, 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: Siesta Key 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 De Soto Park Beach
Pinellas County · Gulf Coast · 27 mi away
No poor samples in the displayed history · risk 0%
Turtle Beach
Sarasota County · Gulf Coast · 4 mi away
No poor samples in the displayed history · risk 0%
Nokomis Beach
Sarasota County · Gulf Coast · 12 mi away
No poor samples in the displayed history · risk 0%
Coquina Beach
Manatee County · Gulf Coast · 16 mi away
No poor samples in the displayed history · risk 0%
Holmes Beach
Manatee County · Gulf Coast · 18 mi away
Nearby-station context from MANATEE PUBLIC BEACH NORTH, about 0.3 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Anna Maria Island Beach
Manatee County · Gulf Coast · 21 mi away
Nearby-station context from BAYFRONT PARK NORTH, about 0.4 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Recent Warning-Sign Samples
Full history →September 8, 2026
52 CFU/100mL · MODERATE
August 10, 2026
169 CFU/100mL · POOR
Keep Exploring Nearby
How To Use This Page
This page gives swimmers deeper historical context for Siesta Key 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 Siesta Key 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.