Bats in New Hampshire in September
Yes, September is one of the best months to see bats in New Hampshire. It is the 3rd busiest month of the year, with 31 of the 221 sightings logged across the year (14%), 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.
Peak month for bats in New Hampshire
14%
of yearly sightings
31
records in September
#3
busiest month of 12
221
verified records a year
August 24.4%, September 14%, October 4.1%. Busiest month is August at 24.4%.
221 verified observations of bats in New Hampshire, recorded across 12 months of the year on iNaturalist.
When bats are recorded in New Hampshire
Peak month
August
54 records (24.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1 | 0.5% |
| February | 5 | 2.3% |
| March | 8 | 3.6% |
| April | 15 | 6.8% |
| May | 22 | 10% |
| June | 25 | 11.3% |
| Julypeak | 44 | 19.9% |
| Augustpeak | 54 | 24.4% |
| Septemberpeak | 31 | 14% |
| October | 9 | 4.1% |
| November | 4 | 1.8% |
| December | 3 | 1.4% |
Bats you are most likely to see
| Species | Verified observations |
|---|---|
| Big Brown Bat | 101 |
| Little Brown Bat | 12 |
| Eastern Red Bat | 9 |
| Eastern Small-footed Myotis | 4 |
| Northern Hoary Bat | 2 |
| Northern Myotis | 2 |
| Silver-haired Bat | 1 |
| Tri-coloured Bat | 1 |
In New Hampshire, September carries 14% of the year's bats sightings, about 5.7 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 August (24.4%) into September, and it heads toward October (4.1%) after. This is right inside the peak window, so September is one of the surest months to plan a trip around.
The bats most often recorded in New Hampshire are Big Brown Bat, Little Brown Bat and Eastern Red Bat. 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 bats you are most likely to see
- Big Brown Bat101 records
- Little Brown Bat12 records
- Eastern Red Bat9 records
- Eastern Small-footed Myotis4 records
- Northern Hoary Bat2 records
- Northern Myotis2 records
Plan your bat trip in New Hampshire
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 bat viewing area.
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Stay nearbyStay near Appalachian National Scenic Trail
Compare hotels, cabins and lodges close to the best bat viewing area in New Hampshire.
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Broader backupBook a bat tour in New Hampshire
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Gear to see them
Frequently asked questions
Can you see bats in New Hampshire in September?+
Yes. September accounts for 31 of the 221 verified bats sightings logged in New Hampshire across the year, which is 14% of the annual total.
Is September a good time to see bats in New Hampshire?+
September is one of the best months. It ranks 3rd of the year and sits inside the peak window of August, July and September.
What month is best for bats in New Hampshire?+
August is the single busiest month, with the broader peak running through August, July and September, based on 221 verified observations.
Which bats are you most likely to see in New Hampshire?+
The most-recorded species in New Hampshire are Big Brown Bat, Little Brown Bat and Eastern Red Bat, based on all-time iNaturalist counts.
See bats in New Hampshire in other months
More places to see bats
More wildlife in New Hampshire