Bats in Maryland in November

Yes, November is a good month to see bats in Maryland. It is the 6th busiest month of the year, with 81 of the 927 sightings logged across the year (8.7%), 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 July 2, 2026.

Silver-haired Bat photographed in MarylandEastern Red Bat photographed in MarylandEastern Red Bat photographed in Maryland
Photos by iNaturalist observers, used under Creative Commons.

Good month for bats in Maryland

8.7%

of yearly sightings

81

records in November

#6

busiest month of 12

927

verified records a year

October 6.7%, November 8.7%, December 5.8%. Busiest month is May at 16%.

Best months: May, April, September

927 verified observations of bats in Maryland, recorded across 12 months of the year on iNaturalist.

When bats are recorded in Maryland

Peak month

May

148 records (16% of the year)

Quietest month

February

31 records

MonthObservationsShare
January333.6%
February313.3%
March667.1%
Aprilpeak11212.1%
Maypeak14816%
June849.1%
July808.6%
August869.3%
Septemberpeak909.7%
October626.7%
November818.7%
December545.8%

Bats you are most likely to see

SpeciesVerified observations
Eastern Red Bat310
Big Brown Bat219
Silver-haired Bat63
Northern Hoary Bat21
Tri-coloured Bat21
Little Brown Bat8
Evening Bat6
Eastern Small-footed Myotis4

In Maryland, November carries 8.7% of the year's bats sightings, about 0.4 points above an even month-to-month split. That makes it the 6th busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from October (6.7%) into November, and it heads toward December (5.8%) after. The busiest month is May (16%), so if timing is flexible, that window is the safer bet.

The bats most often recorded in Maryland are Eastern Red Bat, Big Brown Bat and Silver-haired Bat. Those counts are annual totals rather than a November split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in November itself.

Which bats you are most likely to see

  • Eastern Red Bat310 records
  • Big Brown Bat219 records
  • Silver-haired Bat63 records
  • Northern Hoary Bat21 records
  • Tri-coloured Bat21 records
  • Little Brown Bat8 records
Plan your tripAntietam National Battlefield

Plan your bat 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.

Gear to see them

Frequently asked questions

Can you see bats in Maryland in November?+

Yes. November accounts for 81 of the 927 verified bats sightings logged in Maryland across the year, which is 8.7% of the annual total.

Is November a good time to see bats in Maryland?+

November is the 6th busiest month. It is workable, though May and April is the stronger window for a reliable sighting.

What month is best for bats in Maryland?+

May is the single busiest month, with the broader peak running through May, April and September, based on 927 verified observations.

Which bats are you most likely to see in Maryland?+

The most-recorded species in Maryland are Eastern Red Bat, Big Brown Bat and Silver-haired Bat, based on all-time iNaturalist counts.