El Niño Warms Waters, Draws Sharks Closer to CA

Warmer ocean temperatures driven by El Niño are altering the typical patterns of great white sharks near California's coast. Scientists and state wildlife officials anticipate that sharks may remain in the area later than usual and extend their range northward. This phenomenon is particularly impactful for juvenile great white sharks, which prefer warmer nearshore waters.

Observations in 2026 have already indicated increased juvenile shark activity along Southern California beaches. Drone footage and social media sightings have highlighted a high abundance in these areas. Experts suggest that the current marine heatwave, compounded by emerging El Niño warming, is likely contributing to this elevated presence.

While official counts of shark sightings are not maintained, these warmer conditions could expand the nursery grounds for young sharks. Historically, juvenile sharks are found nearshore from April to October, but current forecasts suggest they may persist longer. Sightings have been reported further north, including Monterey, during previous warm-water years, with some researchers analyzing data to quantify the impact of sea temperature changes.

Sharks have exhibited unpredictable movements, with some tagged individuals dispersing rapidly after storms. Scientists are investigating whether El Niño, marine heatwaves, or shifts in prey distribution are influencing these behaviors. Despite these observations, state officials emphasize that shark bites remain extremely rare in California, with no proportional increase in incidents relative to ocean activity growth.