Whales in California in October
Yes, October is a good month to see whales in California. It is the 5th busiest month of the year, with 10,122 of the 114,247 sightings logged across the year (8.9%), 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 July 2, 2026.
Good month for whales in California
8.9%
of yearly sightings
10,122
records in October
#5
busiest month of 12
114,247
verified records a year
September 9.9%, October 8.9%, November 8.1%. Busiest month is September at 9.9%.
114,247 verified observations of whales in California, recorded across 12 months of the year on iNaturalist.
When whales are recorded in California
Peak month
September
11,303 records (9.9% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 8,132 | 7.1% |
| February | 6,947 | 6.1% |
| March | 8,559 | 7.5% |
| April | 10,112 | 8.9% |
| Maypeak | 10,724 | 9.4% |
| Junepeak | 11,129 | 9.7% |
| July | 10,257 | 9% |
| August | 10,094 | 8.8% |
| Septemberpeak | 11,303 | 9.9% |
| October | 10,122 | 8.9% |
| November | 9,251 | 8.1% |
| December | 7,617 | 6.7% |
Whales you are most likely to see
| Species | Verified observations |
|---|---|
| Mule Deer | 76,680 |
| Elk | 8,703 |
| Humpback Whale | 5,484 |
| Bighorn Sheep | 5,421 |
| Common Bottlenose Dolphin | 3,708 |
| Wild Boar | 2,305 |
| Grey Whale | 1,941 |
| Common Dolphin | 1,812 |
In California, October carries 8.9% of the year's whales sightings, about 0.6 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 September and October, and it heads toward November (8.1%) after. The busiest month is September (9.9%), so if timing is flexible, that window is the safer bet.
The whales most often recorded in California are Mule Deer, Elk and Humpback Whale. Those counts are annual totals rather than a October split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in October itself.
Which whales you are most likely to see
- Mule Deer76,680 records
- Elk8,703 records
- Humpback Whale5,484 records
- Bighorn Sheep5,421 records
- Common Bottlenose Dolphin3,708 records
- Wild Boar2,305 records
Plan your whale 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.
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Live tours nearbySee live tours near Alcatraz Island
Use the live GetYourGuide widget to compare local departures and activity styles close to the main whale viewing area.
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Stay nearbyStay near Alcatraz Island
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Broader backupBook a whale 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 whales in California in October?+
Yes. October accounts for 10,122 of the 114,247 verified whales sightings logged in California across the year, which is 8.9% of the annual total.
Is October a good time to see whales in California?+
October is the 5th busiest month. It is workable, though September and June is the stronger window for a reliable sighting.
What month is best for whales in California?+
September is the single busiest month, with the broader peak running through September, June and May, based on 114,247 verified observations.
Which whales are you most likely to see in California?+
The most-recorded species in California are Mule Deer, Elk and Humpback Whale, based on all-time iNaturalist counts.
See whales in California in other months
More wildlife in California