Beach · Lincoln County · OR
Is OTTER ROCK BEACH safe to swim?
No advisory or algae bloom reported for this water today.
Updated July 19, 2026 · Oregon beach program (EPA BEACON)
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What's in the water at OTTER ROCK BEACH right now
As of July 19, 2026, OTTER ROCK BEACH in Lincoln County, Oregon is clear to swim. 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 0.0 in, which can wash bacteria and nutrients into the water.
Blue-green algae at OTTER ROCK BEACH
OTTER ROCK BEACH is a lake in Lincoln County, Oregon. 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 OTTER ROCK BEACH
- Is it safe to swim in OTTER ROCK BEACH right now?
- OTTER ROCK BEACH is clear to swim 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 OTTER ROCK BEACH have blue-green algae (cyanobacteria)?
- Blue-green algae are not currently monitored at OTTER ROCK BEACH. Watch for green, blue-green, or paint-like scum and avoid the water if you see it.
- Can dogs swim in OTTER ROCK BEACH?
- No bloom is detected at OTTER ROCK BEACH 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 Oregon lakes and beaches have swim advisories today?
- Today, 31 Oregon waters are under a swim advisory and 1 more warrant caution, out of 213 monitored waters SwimZone tracks in the state.
- How is OTTER ROCK BEACH'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 OTTER ROCK BEACH, and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.