2 Types of Seals in California
California is home to five seal species: harbor seals, Guadalupe fur seals, northern elephant seals, Weddell seals (rare), and ringed seals (rare). The most common are harbor seals, which you will see at popular viewing spots like Monterey Bay and Point Reyes, and northern elephant seals, which haul out at specific seasonal aggregation sites. Sea lions are often mistaken for seals, but they are a separate family. This guide covers the seals themselves, how to tell each species apart, and which ones you are most likely to encounter in California.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 30, 2026.
- 2
- species recorded
- April, January, March
- peak months
Verified species, source iNaturalist
2 types of seals recorded in California
2 seal species have a verified observation record in California, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
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Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.
More on seals in California:
Real sighting data, source iNaturalist
32,607 verified observations on iNaturalist of seal have been recorded in California, most often in April, January, March.
When seal are recorded in California
California is home to five seal species: harbor seals, Guadalupe fur seals, northern elephant seals, Weddell seals (rare), and ringed seals (rare). The most common are harbor seals, which you will see at popular viewing spots like Monterey Bay and Point Reyes, and northern elephant seals, which haul out at specific seasonal aggregation sites. Sea lions are often mistaken for seals, but they are a separate family. This guide covers the seals themselves, how to tell each species apart, and which ones you are most likely to encounter in California.
What is the difference between a seal and a sea lion?
Seals (phocids) and sea lions (otariids) are often confused, but they are distinct families. Seals lack external ear flaps and move on land by flexing their spine, keeping their hind flippers underneath them. Sea lions have visible ear flaps and rotate their hind flippers forward to walk on land. Seals are quieter on land, while sea lions are vocal and more mobile. When you see a pinniped hauled out at a California beach or rocky outcrop, you can identify which family it belongs to by looking at the ears and body movement.
Harbor seals: the most common seal in California
Harbor seals are the most frequently seen seal in California. They are medium-sized, weighing 100 to 290 pounds, with mottled brown, gray, or spotted coats. Their head is round and their nostrils close into a V-shape. Harbor seals are found year-round in bays, estuaries, and rocky coastlines. Monterey Bay, Point Reyes, and the San Diego coast all support healthy harbor seal populations. They are generally solitary or in small groups, though they can aggregate during hauling-out periods. Harbor seals are curious animals and may approach your observation platform if you remain still and quiet.
Northern elephant seals: massive seasonal visitors
Northern elephant seals are the largest seal species in the Northern Hemisphere, with males reaching up to 5,000 pounds and displaying a large inflatable snout called a proboscis. Females are smaller, around 1,500 to 2,000 pounds. These deep divers spend most of their year at sea but haul out on California beaches during breeding and molting seasons, December through March for breeding and April through June for molting. The largest mainland colony is at Piedras Blancas near San Simeon, and smaller groups inhabit Año Nuevo Island and other offshore areas. They are gregarious and raucous on land.
How do I tell harbor seals and elephant seals apart?
Harbor seals are much smaller, weighing at most a few hundred pounds, while northern elephant seals are massive and weigh thousands. Male elephant seals have a prominent, inflatable snout. Harbor seals lack this snout and have smaller, streamlined heads. Elephant seals hauled out appear as large, blubbery masses with males often rearing up and vocalizing. Harbor seals are more compact and hold their bodies flatter to the ground. On the water, elephant seals may show only their head, while harbor seals often bring more of their body to the surface.
Guadalupe fur seals: rare and vulnerable
Guadalupe fur seals are one of the rarest marine mammals in the world, with fewer than 10,000 animals remaining. They are smaller than harbor seals, weighing 40 to 100 pounds, with a sleeker build and darker coloration. Unlike seals, they have external ear flaps and rotate their hind flippers forward like sea lions, making them technically fur seals rather than true seals, but they are grouped with seals in casual conversation. They were thought extinct until a tiny population was rediscovered in the 1950s on Guadalupe Island off Mexico. Occasional sightings occur in California, but they remain extremely rare and are protected under the Marine Mammal Protection Act.
Weddell and ringed seals: Arctic species at the southern edge of their range
Weddell seals and ringed seals are Arctic species that occasionally drift into California waters during years of unusual ocean currents or ice melt. Weddell seals are larger, up to 1,000 pounds, with a large head and spotted coat. Ringed seals are smaller, 100 to 150 pounds, with a distinctly spotted pattern that forms rings. These sightings are extremely rare and unpredictable. If you see an unusual seal in California with characteristics that do not match harbor seals or elephant seals, photograph it and report it to local marine wildlife authorities.
What habitats should I watch for each seal species?
Harbor seals haul out on sandy beaches, rocky shores, and man-made structures like docks and buoys. They prefer areas with shelter and access to productive fishing waters. Northern elephant seals occupy specific breeding and molting colonies, primarily sandy or rocky beaches away from human crowds. Guadalupe fur seals, when present, favor rocky intertidal zones and sea caves. Weddell and ringed seals, if they appear, are most likely on protected beaches or within bays where ice-laden currents bring them south. The trunk guide to seals in California lists the best viewing locations for the most common species by region.
What time of year are different seals most visible in California?
Harbor seals are present year-round, though their haul-out patterns vary seasonally. They are active throughout the year and can be seen on any trip. Northern elephant seals follow a strict seasonal pattern: breeding and aggression occur December through January, and molting occurs April through June. Plan a visit during these windows if elephant seals are your target. Guadalupe fur seals, when rarely present, may appear in late fall or winter. The breeding and molting calendar for elephant seals makes them highly predictable if you time your trip correctly.
Can I hear seals as well as see them?
Seals are generally quiet on land, though they make grunts, snorts, and barks when hauled out or during interactions. Northern elephant seals are particularly vocal, with breeding males producing loud roars and aggressive vocalizations. Harbor seals may whistle or chirp underwater but are quiet when hauled out. Sea lions, by contrast, are extremely loud on land, producing loud barks and roars. If you hear sustained vocalizations, you are likely observing sea lions rather than seals. Silent, peacefully hauled-out pinnipeds are typically seals.
Why do seals haul out and what should I do if I encounter one?
Seals haul out to rest, breed, molt, and regulate their body temperature. When on land, they are vulnerable to disturbance and predation. Keep at least 100 feet away from any seal you encounter. Do not approach, touch, or feed seals. Loud noises, flash photography, and quick movements can stress them and cause stampedes, which injure pups and waste their energy. If a seal approaches you, back away slowly. Never corner a seal or block its path to the water. Respect their space and observe from a distance.
Frequently asked questions
What is the difference between a seal and a sea lion?+
Seals (phocids) and sea lions (otariids) are often confused, but they are distinct families. Seals lack external ear flaps and move on land by flexing their spine, keeping their hind flippers underneath them. Sea lions have visible ear flaps and rotate their hind flippers forward to walk on land. Seals are quieter on land, while sea lions are vocal and more mobile. When you see a pinniped hauled out at a California beach or rocky outcrop, you can identify which family it belongs to by looking at the ears and body movement.
How do I tell harbor seals and elephant seals apart?+
Harbor seals are much smaller, weighing at most a few hundred pounds, while northern elephant seals are massive and weigh thousands. Male elephant seals have a prominent, inflatable snout. Harbor seals lack this snout and have smaller, streamlined heads. Elephant seals hauled out appear as large, blubbery masses with males often rearing up and vocalizing. Harbor seals are more compact and hold their bodies flatter to the ground. On the water, elephant seals may show only their head, while harbor seals often bring more of their body to the surface.
What habitats should I watch for each seal species?+
Harbor seals haul out on sandy beaches, rocky shores, and man-made structures like docks and buoys. They prefer areas with shelter and access to productive fishing waters. Northern elephant seals occupy specific breeding and molting colonies, primarily sandy or rocky beaches away from human crowds. Guadalupe fur seals, when present, favor rocky intertidal zones and sea caves. Weddell and ringed seals, if they appear, are most likely on protected beaches or within bays where ice-laden currents bring them south. The trunk guide to seals in California lists the best viewing locations for the most common species by region.
What time of year are different seals most visible in California?+
Harbor seals are present year-round, though their haul-out patterns vary seasonally. They are active throughout the year and can be seen on any trip. Northern elephant seals follow a strict seasonal pattern: breeding and aggression occur December through January, and molting occurs April through June. Plan a visit during these windows if elephant seals are your target. Guadalupe fur seals, when rarely present, may appear in late fall or winter. The breeding and molting calendar for elephant seals makes them highly predictable if you time your trip correctly.
Can I hear seals as well as see them?+
Seals are generally quiet on land, though they make grunts, snorts, and barks when hauled out or during interactions. Northern elephant seals are particularly vocal, with breeding males producing loud roars and aggressive vocalizations. Harbor seals may whistle or chirp underwater but are quiet when hauled out. Sea lions, by contrast, are extremely loud on land, producing loud barks and roars. If you hear sustained vocalizations, you are likely observing sea lions rather than seals. Silent, peacefully hauled-out pinnipeds are typically seals.
Why do seals haul out and what should I do if I encounter one?+
Seals haul out to rest, breed, molt, and regulate their body temperature. When on land, they are vulnerable to disturbance and predation. Keep at least 100 feet away from any seal you encounter. Do not approach, touch, or feed seals. Loud noises, flash photography, and quick movements can stress them and cause stampedes, which injure pups and waste their energy. If a seal approaches you, back away slowly. Never corner a seal or block its path to the water. Respect their space and observe from a distance.
Keep exploring
More places to see seal
More wildlife in California
Common questions about seals