05/04/2026
Blue and Mysterious… Sounds like my father-in-law.
Velella velellas washing ashore in La Jolla
The Velella velella, also known as "by-the-wind sailors," have washed ashore in La Jolla, brought by changing coastal winds, weeks after they were first spotted in Northern California.
According to Anya Stajner, a graduate student at UC San Diego's Scripps Institution of Oceanography, the creatures were first seen in La Jolla on a Monday evening, but it is uncertain whether more will arrive.
There have been reports of Velella velella washing up in other areas, including Carlsbad, and they have also been sighted on beaches in the San Francisco Bay Area, San Luis Obispo County, and along the coast of Ventura, Los Angeles, and Orange counties since late March.
The Velella velella are propelled by shifting currents and winds, which can be particularly intense and difficult to predict during the spring months, making it challenging to determine if they are nearby or if more will arrive.
These free-floating organisms are translucent, making them hard to see, and are most noticeable when they wash ashore, where their deep blue and purple coloring fades as they dry out and die, and although they are not jellyfish, they resemble them and can deliver a benign sting to humans.
Anya Stajner hopes that more Velella velella will show up in the San Diego area, as the last four Aprils have all had notable velella strandings, and she is interested in extending this interesting streak.
It’s unclear how long the ‘by-the-wind sailors’ will appear on local beaches.