Whales in Connecticut in September
Yes, September is a good month to see whales in Connecticut. It is the 4th busiest month of the year, with 351 of the 3,739 sightings logged across the year (9.4%), 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 whales in Connecticut
9.4%
of yearly sightings
351
records in September
#4
busiest month of 12
3,739
verified records a year
August 10.5%, September 9.4%, October 5.5%. Busiest month is June at 13.1%.
3,739 verified observations of whales in Connecticut, recorded across 12 months of the year on iNaturalist.
When whales are recorded in Connecticut
Peak month
June
488 records (13.1% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 274 | 7.3% |
| February | 217 | 5.8% |
| March | 243 | 6.5% |
| April | 305 | 8.2% |
| May | 348 | 9.3% |
| Junepeak | 488 | 13.1% |
| Julypeak | 401 | 10.7% |
| Augustpeak | 391 | 10.5% |
| September | 351 | 9.4% |
| October | 205 | 5.5% |
| November | 268 | 7.2% |
| December | 248 | 6.6% |
Whales you are most likely to see
| Species | Verified observations |
|---|---|
| White-tailed Deer | 3,616 |
| Moose | 60 |
| Goats and Sheep | 3 |
| Tamanend's Bottlenose Dolphin | 3 |
| Wild Boar | 2 |
| Harbour Porpoise | 1 |
| Pygmy Sperm Whale | 1 |
| Common Bottlenose Dolphin | 1 |
In Connecticut, September carries 9.4% of the year's whales sightings, about 1.1 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (10.5%) into September, and it heads toward October (5.5%) after. The busiest month is June (13.1%), so if timing is flexible, that window is the safer bet.
The whales most often recorded in Connecticut are White-tailed Deer, Moose and Goats and Sheep. 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 whales you are most likely to see
- White-tailed Deer3,616 records
- Moose60 records
- Goats and Sheep3 records
- Tamanend's Bottlenose Dolphin3 records
- Wild Boar2 records
- Harbour Porpoise1 records
Plan your whale trip in Connecticut
Start with live tours near Appalachian National Scenic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Appalachian National Scenic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main whale viewing area.
Booking.com
Stay nearbyStay near Appalachian National Scenic Trail
Compare hotels, cabins and lodges close to the best whale viewing area in Connecticut.
Viator
Broader backupBook a whale tour in Connecticut
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 Connecticut in September?+
Yes. September accounts for 351 of the 3,739 verified whales sightings logged in Connecticut across the year, which is 9.4% of the annual total.
Is September a good time to see whales in Connecticut?+
September is the 4th busiest month. It is workable, though June and July is the stronger window for a reliable sighting.
What month is best for whales in Connecticut?+
June is the single busiest month, with the broader peak running through June, July and August, based on 3,739 verified observations.
Which whales are you most likely to see in Connecticut?+
The most-recorded species in Connecticut are White-tailed Deer, Moose and Goats and Sheep, based on all-time iNaturalist counts.