
Based on 2,926 research-grade iNaturalist observations in Washington, Harbor Seal is most often recorded in July; in Washington it behaves like a seasonal. It ranks #8 among mammals recorded in the state in our data.
Phoca vitulina
Harbor Seal in Washington 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 Washington in July

Eastern Cottontail

Hoary Marmot

Cascade Golden-mantled Ground Squirrel
Douglas's Squirrel

Mule Deer

Eastern Gray Squirrel

Mountain Goat

Common Raccoon
Places to look in Washington
Gifford Pinchot National Forest
Olympic National Forest
Peace Arch Park
Colville National Forest
Mount Baker–Snoqualmie National Forest
Bellevue Botanical Garden
FAQ
When does Harbor Seal appear in Washington?
Mainly March–October, with the most records in July.
How common is Harbor Seal in Washington?
It ranks #8 by number of iNaturalist observations among mammals in Washington (2,926 records in our sample).