Beach · Barnstable County · MA
Is Racing Beach Association safe to swim?
Recent heavy rain may have spiked bacteria since the last clear sample.
Updated July 19, 2026 · Massachusetts beach program (EPA BEACON)
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Get an alert the day a bacteria or algae advisory goes up.
What's in the water at Racing Beach Association right now
As of July 19, 2026, Racing Beach Association in Barnstable County, Massachusetts carries a swim caution. Blue-green algae are not currently monitored at this water. No fecal-bacteria advisory is posted (state beach program). Rainfall over the past week totaled 1.6 in, which can wash bacteria and nutrients into the water.
Blue-green algae at Racing Beach Association
Racing Beach Association is a lake in Barnstable County, Massachusetts. Blue-green algae are not currently monitored at this water.
Blue-green algae (cyanobacteria) blooms are most common from midsummer into early fall, when the water is warm, calm, and rich in nutrients from runoff. They can produce toxins that make people sick and can be rapidly fatal to dogs, so skip water that looks green, scummy, or like spilled paint, and keep children and pets out of it.
Frequently asked: swimming in Racing Beach Association
- Is it safe to swim in Racing Beach Association right now?
- Racing Beach Association carries a swim caution today. Blue-green algae are not currently monitored at this water. Conditions can change quickly with wind, heat, and rain, so check the posted signs and look at the water before you get in.
- Does Racing Beach Association have blue-green algae (cyanobacteria)?
- Blue-green algae are not currently monitored at Racing Beach Association. Watch for green, blue-green, or paint-like scum and avoid the water if you see it.
- Can dogs swim in Racing Beach Association?
- No bloom is detected at Racing Beach Association today, but dogs are much more vulnerable to blue-green algae than people, and blooms can form within hours. Always keep dogs away from water that looks green, scummy, or discolored, and rinse them off after swimming.
- How many Massachusetts lakes and beaches have swim advisories today?
- Today, 5 Massachusetts waters are under a swim advisory and 229 more warrant caution, out of 608 monitored waters SwimZone tracks in the state.
- How is Racing Beach Association's water quality measured?
- SwimZone builds this read from EPA CyAN satellite imagery for blue-green algae, official beach and fecal-bacteria advisories where a program monitors Racing Beach Association, and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.