
Based on 2,400 research-grade iNaturalist observations in California, Sea Otter is most often recorded in March; in California it behaves like a year-round resident. It ranks #32 among mammals recorded in the state in our data.
Enhydra lutris
Sea Otter in California by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in California in March

California Ground Squirrel

Eastern Fox Squirrel
Coyote
California Sea Lion

Desert Cottontail

Mule Deer
Black-tailed Jackrabbit

Western Gray Squirrel
Places to look in California
Botanical GardenThe Huntington Library, Art Museum, and Botanical Gardens
State ParkHearst Castle
Botanical GardenSan Francisco Botanical Garden
Anza-Borrego Desert State Park
Angeles National Forest
National ForestSequoia National Forest
FAQ
When does Sea Otter appear in California?
Mainly February–January, with the most records in March.
How common is Sea Otter in California?
It ranks #32 by number of iNaturalist observations among mammals in California (2,400 records in our sample).