California beaches see record stingray attacks due to warming oceans

California's coastline is experiencing a significant surge in stingray activity, leading to a record number of injuries among swimmers. At Bolsa Chica and Huntington State beaches, more than 3,100 sting incidents have been recorded so far in 2026, nearly doubling the total number of incidents from all of 2025.

In San Diego, over 900 stings were documented during the first half of 2026, surpassing the first six months of any of the previous five years. Marine biologists, including Chris Lowe of California State University, Long Beach, attribute this influx to a marine heatwave and the expected effects of El Niño. These warming ocean temperatures are drawing subtropical species, such as round stingrays, further north along the coast.

Stingrays often camouflage themselves in the sand, leading to accidental stings when people step on them. Authorities and lifeguards recommend that swimmers shuffle their feet in the water to alert the animals and avoid contact. While stingray venom is not typically fatal unless it reaches a vital organ, the stings can be extremely painful. Experts suggest soaking affected areas in hot, fresh water to help alleviate symptoms by breaking down certain proteins in the venom.