Seals in Maine in August

Yes, August is one of the best months to see seals in Maine. It is the 3rd busiest month of the year, with 450 of the 2,276 sightings logged across the year (19.8%), 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.

Harp Seal photographed in MaineHarbor Seal photographed in MaineGrey Seal photographed in Maine
Photos by iNaturalist observers, used under Creative Commons.

Peak month for seals in Maine

19.8%

of yearly sightings

450

records in August

#3

busiest month of 12

2,276

verified records a year

July 22.3%, August 19.8%, September 9.4%. Busiest month is July at 22.3%.

Best months: July, June, AugustPeak season right now

2,276 verified observations of seals in Maine, recorded across 12 months of the year on iNaturalist.

When seals are recorded in Maine

Peak month

July

507 records (22.3% of the year)

Quietest month

February

26 records

MonthObservationsShare
January271.2%
February261.1%
March301.3%
April462%
May24510.8%
Junepeak48021.1%
Julypeak50722.3%
Augustpeak45019.8%
September2149.4%
October1597%
November532.3%
December391.7%

Seals you are most likely to see

SpeciesVerified observations
Harbor Seal1,553
Grey Seal607
Harp Seal9

In Maine, August carries 19.8% of the year's seals sightings, about 11.5 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 (22.3%) into August, and it heads toward September (9.4%) after. This is right inside the peak window, so August is one of the surest months to plan a trip around.

The seals most often recorded in Maine are Harbor Seal, Grey Seal and Harp Seal. 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 seals you are most likely to see

  • Harbor Seal1,553 records
  • Grey Seal607 records
  • Harp Seal9 records
Plan your tripAcadia National Park

Plan your seal trip in Maine

Start with live tours near Acadia National Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see seals in Maine in August?+

Yes. August accounts for 450 of the 2,276 verified seals sightings logged in Maine across the year, which is 19.8% of the annual total.

Is August a good time to see seals in Maine?+

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 seals in Maine?+

July is the single busiest month, with the broader peak running through July, June and August, based on 2,276 verified observations.

Which seals are you most likely to see in Maine?+

The most-recorded species in Maine are Harbor Seal, Grey Seal and Harp Seal, based on all-time iNaturalist counts.