Dolphins in Maryland in August

Yes, August is one of the best months to see dolphins in Maryland. It is the 3rd busiest month of the year, with 23 of the 183 sightings logged across the year (12.6%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Tamanend's Bottlenose Dolphin photographed in MarylandTamanend's Bottlenose Dolphin photographed in MarylandTamanend's Bottlenose Dolphin photographed in Maryland
Photos by iNaturalist observers, used under Creative Commons.

Peak month for dolphins in Maryland

12.6%

of yearly sightings

23

records in August

#3

busiest month of 12

183

verified records a year

July 21.9%, August 12.6%, September 7.7%. Busiest month is July at 21.9%.

Best months: July, June, AugustPeak season right now

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)

Quietest month

January

2 records

MonthObservationsShare
January21.1%
February73.8%
March73.8%
April94.9%
May137.1%
Junepeak2815.3%
Julypeak4021.9%
Augustpeak2312.6%
September147.7%
October158.2%
November2312.6%
December21.1%

Dolphins you are most likely to see

SpeciesVerified observations
Tamanend's Bottlenose Dolphin135
Common Dolphin6
Common Bottlenose Dolphin1

In Maryland, August carries 12.6% of the year's dolphins sightings, about 4.3 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 12 months with recorded activity.

Activity is easing off from July (21.9%) into August, and it heads toward September (7.7%) after. This is right inside the peak window, so August is one of the surest months to plan a trip around.

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 August split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in August itself.

Which dolphins you are most likely to see

  • Tamanend's Bottlenose Dolphin135 records
  • Common Dolphin6 records
  • Common Bottlenose Dolphin1 records
Plan your tripAntietam National Battlefield

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.

Frequently asked questions

Can you see dolphins in Maryland in August?+

Yes. August accounts for 23 of the 183 verified dolphins sightings logged in Maryland across the year, which is 12.6% of the annual total.

Is August a good time to see dolphins in Maryland?+

August is one of the best months. It ranks 3rd of the year and sits inside the peak window of July, June and August.

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.