Sea Lions in California in September
Yes, September is a good month to see sea lions in California. It is the 5th busiest month of the year, with 2,922 of the 31,914 sightings logged across the year (9.2%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Good month for sea lions in California
9.2%
of yearly sightings
2,922
records in September
#5
busiest month of 12
31,914
verified records a year
August 9.7%, September 9.2%, October 7.4%. Busiest month is June at 10.2%.
31,914 verified observations of sea lions in California, recorded across 12 months of the year on iNaturalist.
When sea lions are recorded in California
Peak month
June
3,258 records (10.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 2,061 | 6.5% |
| February | 2,359 | 7.4% |
| March | 3,013 | 9.4% |
| April | 2,694 | 8.4% |
| Maypeak | 3,055 | 9.6% |
| Junepeak | 3,258 | 10.2% |
| July | 2,638 | 8.3% |
| Augustpeak | 3,085 | 9.7% |
| September | 2,922 | 9.2% |
| October | 2,356 | 7.4% |
| November | 2,242 | 7% |
| December | 2,231 | 7% |
Sea Lions you are most likely to see
| Species | Verified observations |
|---|---|
| California Sea Lion | 30,291 |
| Steller Sea Lion | 718 |
| Northern Fur Seal | 372 |
| Guadalupe Fur Seal | 118 |
In California, September carries 9.2% of the year's sea lions sightings, about 0.9 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.
Activity holds steady between August and September, and it heads toward October (7.4%) after. The busiest month is June (10.2%), so if timing is flexible, that window is the safer bet.
The sea lions most often recorded in California are California Sea Lion, Steller Sea Lion and Northern Fur Seal. Those counts are annual totals rather than a September split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in September itself.
Which sea lions you are most likely to see
- California Sea Lion30,291 records
- Steller Sea Lion718 records
- Northern Fur Seal372 records
- Guadalupe Fur Seal118 records
Plan your sea lion trip in California
Start with live tours near Alcatraz Island, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Alcatraz Island
Use the live GetYourGuide widget to compare local departures and activity styles close to the main sea lion viewing area.
Booking.com
Stay nearbyStay near Alcatraz Island
Compare hotels, cabins and lodges close to the best sea lion viewing area in California.
Viator
Broader backupBook a sea lion tour in California
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see sea lions in California in September?+
Yes. September accounts for 2,922 of the 31,914 verified sea lions sightings logged in California across the year, which is 9.2% of the annual total.
Is September a good time to see sea lions in California?+
September is the 5th busiest month. It is workable, though June and August is the stronger window for a reliable sighting.
What month is best for sea lions in California?+
June is the single busiest month, with the broader peak running through June, August and May, based on 31,914 verified observations.
Which sea lions are you most likely to see in California?+
The most-recorded species in California are California Sea Lion, Steller Sea Lion and Northern Fur Seal, based on all-time iNaturalist counts.
See sea lions in California in other months
More wildlife in California