Dolphins in Maryland in October
Yes, October is a good month to see dolphins in Maryland. It is the 5th busiest month of the year, with 15 of the 183 sightings logged across the year (8.2%), 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 dolphins in Maryland
8.2%
of yearly sightings
15
records in October
#5
busiest month of 12
183
verified records a year
September 7.7%, October 8.2%, November 12.6%. Busiest month is July at 21.9%.
183 verified observations of dolphins in Maryland, recorded across 12 months of the year on iNaturalist.
When dolphins are recorded in Maryland
Peak month
July
40 records (21.9% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 2 | 1.1% |
| February | 7 | 3.8% |
| March | 7 | 3.8% |
| April | 9 | 4.9% |
| May | 13 | 7.1% |
| Junepeak | 28 | 15.3% |
| Julypeak | 40 | 21.9% |
| Augustpeak | 23 | 12.6% |
| September | 14 | 7.7% |
| October | 15 | 8.2% |
| November | 23 | 12.6% |
| December | 2 | 1.1% |
Dolphins you are most likely to see
| Species | Verified observations |
|---|---|
| Tamanend's Bottlenose Dolphin | 135 |
| Common Dolphin | 6 |
| Common Bottlenose Dolphin | 1 |
In Maryland, October carries 8.2% of the year's dolphins sightings, about 0.1 points below 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 (12.6%) after. The busiest month is July (21.9%), so if timing is flexible, that window is the safer bet.
The dolphins most often recorded in Maryland are Tamanend's Bottlenose Dolphin, Common Dolphin and Common Bottlenose Dolphin. 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 dolphins you are most likely to see
- Tamanend's Bottlenose Dolphin135 records
- Common Dolphin6 records
- Common Bottlenose Dolphin1 records
Plan your dolphin trip in Maryland
Start with live tours near Antietam National Battlefield, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Antietam National Battlefield
Use the live GetYourGuide widget to compare local departures and activity styles close to the main dolphin viewing area.
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Stay nearbyStay near Antietam National Battlefield
Compare hotels, cabins and lodges close to the best dolphin viewing area in Maryland.
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Broader backupBook a dolphin tour in Maryland
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 dolphins in Maryland in October?+
Yes. October accounts for 15 of the 183 verified dolphins sightings logged in Maryland across the year, which is 8.2% of the annual total.
Is October a good time to see dolphins in Maryland?+
October is the 5th busiest month. It is workable, though July and June is the stronger window for a reliable sighting.
What month is best for dolphins in Maryland?+
July is the single busiest month, with the broader peak running through July, June and August, based on 183 verified observations.
Which dolphins are you most likely to see in Maryland?+
The most-recorded species in Maryland are Tamanend's Bottlenose Dolphin, Common Dolphin and Common Bottlenose Dolphin, based on all-time iNaturalist counts.
See dolphins in Maryland in other months
More places to see dolphins
More wildlife in Maryland