Bats in Idaho in September
Yes, September is a good month to see bats in Idaho. It is the 4th busiest month of the year, with 43 of the 341 sightings logged across the year (12.6%), 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 bats in Idaho
12.6%
of yearly sightings
43
records in September
#4
busiest month of 12
341
verified records a year
August 37.2%, September 12.6%, October 5.3%. Busiest month is August at 37.2%.
341 verified observations of bats in Idaho, recorded across 12 months of the year on iNaturalist.
When bats are recorded in Idaho
Peak month
August
127 records (37.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1 | 0.3% |
| February | 2 | 0.6% |
| March | 4 | 1.2% |
| April | 9 | 2.6% |
| May | 25 | 7.3% |
| Junepeak | 56 | 16.4% |
| Julypeak | 52 | 15.2% |
| Augustpeak | 127 | 37.2% |
| September | 43 | 12.6% |
| October | 18 | 5.3% |
| November | 3 | 0.9% |
| December | 1 | 0.3% |
Bats you are most likely to see
| Species | Verified observations |
|---|---|
| Little Brown Bat | 37 |
| Silver-haired Bat | 31 |
| Big Brown Bat | 18 |
| Townsend's Big-eared Bat | 16 |
| Long-eared Myotis | 13 |
| Northern Hoary Bat | 12 |
| Pallid Bat | 9 |
| Western Small-footed Myotis | 5 |
In Idaho, September carries 12.6% of the year's bats sightings, about 4.3 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (37.2%) into September, and it heads toward October (5.3%) after. The busiest month is August (37.2%), so if timing is flexible, that window is the safer bet.
The bats most often recorded in Idaho are Little Brown Bat, Silver-haired Bat and Big Brown 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
- Little Brown Bat37 records
- Silver-haired Bat31 records
- Big Brown Bat18 records
- Townsend's Big-eared Bat16 records
- Long-eared Myotis13 records
- Northern Hoary Bat12 records
Plan your bat trip in Idaho
Start with live tours near City Of Rocks National Reserve, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near City Of Rocks National Reserve
Use the live GetYourGuide widget to compare local departures and activity styles close to the main bat viewing area.
Booking.com
Stay nearbyStay near City Of Rocks National Reserve
Compare hotels, cabins and lodges close to the best bat viewing area in Idaho.
Viator
Broader backupBook a bat tour in Idaho
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 Idaho in September?+
Yes. September accounts for 43 of the 341 verified bats sightings logged in Idaho across the year, which is 12.6% of the annual total.
Is September a good time to see bats in Idaho?+
September is the 4th busiest month. It is workable, though August and June is the stronger window for a reliable sighting.
What month is best for bats in Idaho?+
August is the single busiest month, with the broader peak running through August, June and July, based on 341 verified observations.
Which bats are you most likely to see in Idaho?+
The most-recorded species in Idaho are Little Brown Bat, Silver-haired Bat and Big Brown Bat, based on all-time iNaturalist counts.
See bats in Idaho in other months
More places to see bats
More wildlife in Idaho