St. Lucie County·Treasure Coast·Atlantic Coast
Should you swim at Frederick Douglass 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.
Current picture
GOOD on the latest sample at 10 CFU/100mL.
Recent-sample context
0 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
No poor sample in the displayed history
A recent poor sample is a stronger reason to be conservative after runoff.
Displayed-sample spike risk
0%
Lower is better when weather makes your same-day decision harder.
Lower-Risk Nearby Options After Rain
Rain guide →Avalon State Park Beach
St. Lucie County · Atlantic Coast · 5 mi away
Nearby-station context from PEPPER PARK, about 1.5 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Jaycee Beach Park
Indian River County · Atlantic Coast · 14 mi away
Nearby-station context from SOUTH BEACH PARK, about 1.0 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Vero Beach
Indian River County · Atlantic Coast · 15 mi away
Nearby-station context from HUMISTON BEACH OUTFLOW, about 1.2 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Stuart Beach
Martin County · Atlantic Coast · 19 mi away
No poor samples in the displayed history · risk 0%
Hobe Sound Beach
Martin County · Atlantic Coast · 28 mi away
No poor samples in the displayed history · risk 0%
Bathtub Reef Beach
Martin County · Atlantic Coast · 22 mi away
No poor samples in the displayed history · risk 0%
Water Quality History — Latest Samples
Sample source: Frederick Douglass 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 →July 20, 2026
53 CFU/100mL · MODERATE
Keep Exploring Nearby
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 Frederick Douglass 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.