Based on 1,910 research-grade iNaturalist observations in California, Grey Whale is most often recorded in March; in California it behaves like a seasonal. It ranks #37 among mammals recorded in the state in our data.
Eschrichtius robustus
Grey Whale 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
State ParkAnza-Borrego Desert State Park
National ForestAngeles National Forest
National ForestSequoia National Forest
FAQ
When does Grey Whale appear in California?
Mainly January–May, with the most records in March.
How common is Grey Whale in California?
It ranks #37 by number of iNaturalist observations among mammals in California (1,910 records in our sample).