Pinellas County · Tampa Bay Area · Gulf Coast

Should you swim at Fort De Soto Park 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.

GOOD Latest sample: May 11, 2026 4 CFU/100mL 8% poor-sample history

Main Beach Page History Alternatives After Rain Recent Spikes

Current picture

GOOD on the latest sample at 4 CFU/100mL.

Long-term 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.

Wait window

72 hours

Use that as the default buffer after heavy rain before trusting routine samples too much.

Latest poor sample

January 14, 2026

A recent poor sample is a stronger reason to be conservative after runoff.

Long-term spike risk

8%

Lower is better when weather makes your same-day decision harder.

Lower-Risk Nearby Options After Rain

St. Pete Beach

Pinellas County · Gulf Coast · 7 mi away

Tested May 11, 2026 4 CFU/100mL

No poor samples in the displayed history · risk 0%

Picnic Island Beach

Hillsborough County · Gulf Coast · 19 mi away

Tested May 13, 2026 4 CFU/100mL

No poor samples in the displayed history · risk 0%

Treasure Island Beach

Pinellas County · Gulf Coast · 10 mi away

Tested May 11, 2026 8 CFU/100mL

No poor samples in the displayed history · risk 0%

Madeira Beach

Pinellas County · Gulf Coast · 12 mi away

Tested May 11, 2026 8 CFU/100mL

No poor samples in the displayed history · risk 0%

Holmes Beach

Manatee County · Gulf Coast · 9 mi away

Tested May 11, 2026 10 CFU/100mL

No poor samples in the displayed history · risk 0%

Anna Maria Island Beach

Manatee County · Gulf Coast · 7 mi away

Tested May 11, 2026 31 CFU/100mL

No poor samples in the displayed history · risk 0%

Water Quality History — Last 12 Months

35.4

70.5

21

Oct

19

Oct

18

Oct

22

Nov

21

Nov

25

Dec

20

Dec

115

Jan

20

Jan

19

Feb

23

Feb

18

Mar

Values in CFU/100mL. Green = Good (≤35.4), Yellow = Moderate (35.5–70.4), Red = Poor (≥70.5)

Recent Warning-Sign Samples

Full history →

January 14, 2026

115 CFU/100mL · POOR

POOR

Keep Exploring Nearby

Pinellas County Tampa Bay Area Beaches near Tampa Beaches near St. Petersburg Beaches near Clearwater

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.

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 Fort De Soto Park Beach beach page.

Data from FL DOH Healthy Beaches Program. This is an independent project — check with Florida DOH for official conditions.