Pinellas County · Tampa Bay Area · Gulf Coast
Is it safe to swim at Caladesi Island State Park today?
Latest DOH sample is GOOD
The latest Florida DOH sample at Caladesi Island State Park measured 4 CFU/100mL, which is in the good range. That is a positive sign, but it is still a sample from Monday, May 11, 2026 rather than a live reading.
Latest sample on page
Monday, May 11, 2026
This is the latest DOH beach-water sample we found for Caladesi Island State Park.
Bacteria reading
4 CFU/100mL
The EPA beach action value is 70.5 CFU/100mL. Lower is better.
12-month risk context
0% poor results
Use the current sample first, then use the 12-month track record as context.
This page helps you make a better beach decision, not just read a badge. If it has rained heavily since Monday, May 11, 2026, lean conservative even if the latest sample looks fine.
Start with the sample date
The number on this page is only as fresh as the last sample. If the date feels old for your trip, be more skeptical.
Use history as a tie-breaker
Two beaches can both look good today, but the one with fewer past spikes is usually the safer bet on an uncertain weather day.
Rain beats the badge
Stormwater runoff can change conditions faster than Florida's routine testing schedule, especially near inlets, canals, and urban drains.
Caladesi Island State Park beach conditions and water quality today
If you searched for Caladesi Island State Park water quality or beach conditions today, the latest Florida DOH sample shown on this page is 4 CFU/100mL from Monday, May 11, 2026. This site currently classifies that sample as GOOD.
Latest sample on this page: Monday, May 11, 2026
This sample is 2 days older than the freshest update currently on this site.
How Caladesi Island State Park compares nearby today
Caladesi Island State Park currently ranks #2 of 4 monitored nearby beaches on this page based on current status, 12-month risk, and sample freshness.
If you want the stronger backup right now, compare Picnic Island Beach first.
Compare Caladesi Island State Park with Picnic Island BeachYour best next step from this page
Compare Picnic Island Beach next
Picnic Island Beach currently looks like the stronger nearby alternative on this page.
Use Pinellas County as your local backup map
This beach currently leads the county, so the county page is the fastest way to find second-choice backups.
Plan from Tampa
If you are deciding from a city trip, the city guide makes it easier to compare distance, current status, and fallback options together.
Use the right page for the decision you're making
These deeper views help when you need more than the same-day badge.
Track record
Open Caladesi Island State Park history
Use this when today's badge looks okay but you want to confirm that Caladesi Island State Park is usually one of the steadier options.
Backup plan
Compare Picnic Island Beach and other backups
Use this first if Caladesi Island State Park gives you pause and you want the strongest nearby alternative ranked by current status, risk history, and distance.
Weather risk
Use the after-rain view for Caladesi Island State Park
This sample is already 2 days behind the freshest site data. If rain hit after this sample, start with the stricter after-rain view.
Warning signs
Check recent spikes before you go
Use this when you want to confirm whether Caladesi Island State Park has shown any recent non-good readings, not just the current badge.
Historically one of the steadier options
Caladesi Island State Park has a strong 12-month track record in this dataset. That makes a dry-weather good sample more reassuring, but it still does not override recent rain, runoff, or brown water.
Most recent poor sample shown here: No poor samples are shown in the last 12 months on this page.
Freshest sample anywhere on this site: May 13, 2026
Sample source details
- Source station
- HONEYMOON ISLAND BEACH
- Station ID
- 40855
- Data source
- Florida DOH Healthy Beaches Program via Water Atlas API
Monitoring station names can differ from beach signs or local nicknames. Use this source detail when you want to match the page back to the underlying Florida DOH sample record.
Water Quality History — Last 12 Months
Values in CFU/100mL. Green = Good (≤35.4), Yellow = Moderate (35.5–70.4), Red = Poor (≥70.5)
If it rained recently, treat this page as stale faster
Florida DOH testing is routine, not continuous. Heavy rain can push bacteria higher through runoff before the next posted sample catches it. For Caladesi Island State Park, wait at least 72 hours after heavy rain and be extra careful around inlets, canals, storm drains, or brown water. Read the rain guide.
About Caladesi Island State Park
Accessible only by ferry or kayak, Caladesi Island has been voted America's best beach, offering unspoiled white sand and clear Gulf waters.
Where Caladesi Island State Park sits in Pinellas County
Caladesi Island State Park currently ranks as the strongest monitored beach in Pinellas County by current status, 12-month risk, and sample freshness.
Compare with Honeymoon Island State ParkWhere Caladesi Island State Park sits in Tampa Bay Area
Caladesi Island State Park currently ranks #2 of 12 monitored beaches in the Tampa Bay Area group by current status, 12-month risk, and sample freshness.
Compare with Picnic Island BeachKeep Exploring This Coastline
Use the county, regional, and city guide pages to compare more beaches before you commit to one stop.
Compare Nearby Beaches Before You Go
These nearby beaches are sorted by current status, historical spike rate, and sample recency so you can compare backup options before you drive.
Read Before You Go
Is It Safe to Swim After Rain?
Wait times, runoff risk, and when to skip the water
Understanding Advisories
What the badges, thresholds, and warnings really mean
Cleanest Beaches in Florida
Compare the strongest historical track records
How Bacteria Testing Works
How sampling works and why “latest” is not the same as live
Disclaimer: Water quality data is sourced from the Florida Department of Health Healthy Beaches Program. Conditions can change rapidly. This website provides informational guidance only — always check with Florida DOH for official beach conditions. Safe to Swim Florida is an independent project and is not affiliated with any government agency.