Martin County · Treasure Coast · Atlantic Coast
Should you swim at Hobe Sound 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.
Long-term context
1 poor samples and 12 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
November 30, 2025
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
Rain guide →Jensen Beach
Martin County · Atlantic Coast · 12 mi away
No poor samples in the displayed history · risk 0%
Juno Beach
Palm Beach County · Atlantic Coast · 13 mi away
No poor samples in the displayed history · risk 0%
Singer Island Beach
Palm Beach County · Atlantic Coast · 20 mi away
No poor samples in the displayed history · risk 0%
Bathtub Reef Beach
Martin County · Atlantic Coast · 6 mi away
Last poor sample Nov 15 · risk 8%
Stuart Beach
Martin County · Atlantic Coast · 9 mi away
Last poor sample Nov 30 · risk 17%
Frederick Douglass Beach
St. Lucie County · Atlantic Coast · 28 mi away
Last poor sample Nov 30 · risk 17%
Water Quality History — Last 12 Months
Values in CFU/100mL. Green = Good (≤35.4), Yellow = Moderate (35.5–70.4), Red = Poor (≥70.5)
Recent Warning-Sign Samples
Full history →March 15, 2026
41 CFU/100mL · MODERATE
February 28, 2026
46 CFU/100mL · MODERATE
February 13, 2026
55 CFU/100mL · MODERATE
January 29, 2026
41 CFU/100mL · MODERATE
January 14, 2026
50 CFU/100mL · MODERATE
December 30, 2025
42 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 Hobe Sound Beach beach page.
Data from FL DOH Healthy Beaches Program. This is an independent project — check with Florida DOH for official conditions.