Hillsborough County · Tampa Bay Area · Gulf Coast

Picnic Island Beach Water Quality

GOOD

Water quality is GOOD — Safe for swimming

The most recent test at Picnic Island Beach showed enterococcus bacteria levels of 10 CFU/100mL, which is well within the safe range (35.4 or below CFU/100mL). Conditions are considered safe for swimming and water activities.

Tested: Sunday, March 15, 2026
Reading: 10 CFU/100mL
Risk Rating: 0% poor results

Historical Risk Rating

0%

Picnic Island Beach has an excellent track record. Only 0% of tests in the last 12 months returned poor results.

Water Quality History — Last 12 Months

35.4
70.5
11
Oct
8
Oct
8
Oct
10
Nov
11
Nov
8
Dec
12
Dec
12
Jan
12
Jan
9
Feb
10
Feb
10
Mar

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

Swimming After Rain

Rainfall can wash bacteria, fertilizers, and other pollutants into the ocean through stormwater runoff. The Florida DOH recommends waiting at least 72 hours after heavy rain before swimming, especially near inlets, canals, and river mouths. If it has rained recently in the Hillsborough County area, use extra caution.

About Picnic Island Beach

A natural beach park on Tampa Bay with mangrove trails, fishing, and a dog beach — a local favorite away from tourist crowds.

Disclaimer: Water quality data is sourced from the Florida Department of Health Healthy Beaches Program. Conditions can change rapidly. This website provides informational estimates only — always check with Florida DOH for official, real-time beach conditions. Safe to Swim Florida is an independent project and is not affiliated with any government agency.