Duval County · Northeast Florida · Atlantic Coast
Jacksonville Beach water quality history
This page is for swimmers who want the deeper historical story at Jacksonville Beach: recent readings, spike frequency, and how often the beach has slipped into poor territory.
Current picture
GOOD on the latest sample at 4 CFU/100mL.
Long-term context
4 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.
Poor samples shown
4
out of 12 displayed samples.
Latest poor sample
March 15, 2026
This is the last time the displayed history shows a poor result.
Historical risk
33%
share of poor samples in the displayed history.
Water Quality History — Last 12 Months
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 →Neptune Beach
Duval County · Atlantic Coast · 2 mi away
No poor samples in the displayed history · risk 0%
Atlantic Beach
Duval County · Atlantic Coast · 3 mi away
No poor samples in the displayed history · risk 0%
Ponte Vedra Beach
St. Johns County · Atlantic Coast · 3 mi away
No poor samples in the displayed history · risk 0%
Kathryn Abbey Hanna Park
Duval County · Atlantic Coast · 7 mi away
No poor samples in the displayed history · risk 0%
Vilano Beach
St. Johns County · Atlantic Coast · 26 mi away
No poor samples in the displayed history · risk 0%
Fernandina Beach
Nassau County · Atlantic Coast · 27 mi away
No poor samples in the displayed history · risk 0%
Recent Warning-Sign Samples
Full history →March 15, 2026
77 CFU/100mL · POOR
February 28, 2026
69 CFU/100mL · MODERATE
February 13, 2026
45 CFU/100mL · MODERATE
January 29, 2026
106 CFU/100mL · POOR
January 14, 2026
120 CFU/100mL · POOR
December 30, 2025
49 CFU/100mL · MODERATE
How To Use This Page
This page is for swimmers who want the deeper historical story at Jacksonville Beach: recent readings, spike frequency, and how often the beach has slipped into 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 Jacksonville Beach beach page.
Data from FL DOH Healthy Beaches Program. This is an independent project — check with Florida DOH for official conditions.