Bats in Wyoming in September
Yes, September is a good month to see bats in Wyoming. It is the 4th busiest month of the year, with 18 of the 177 sightings logged across the year (10.2%), 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 Wyoming
10.2%
of yearly sightings
18
records in September
#4
busiest month of 12
177
verified records a year
August 33.9%, September 10.2%, October 2.8%. Busiest month is August at 33.9%.
177 verified observations of bats in Wyoming, recorded across 12 months of the year on iNaturalist.
When bats are recorded in Wyoming
Peak month
August
60 records (33.9% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1 | 0.6% |
| February | 2 | 1.1% |
| March | 1 | 0.6% |
| April | 4 | 2.3% |
| May | 12 | 6.8% |
| Junepeak | 24 | 13.6% |
| Julypeak | 44 | 24.9% |
| Augustpeak | 60 | 33.9% |
| September | 18 | 10.2% |
| October | 5 | 2.8% |
| November | 4 | 2.3% |
| December | 2 | 1.1% |
Bats you are most likely to see
| Species | Verified observations |
|---|---|
| Little Brown Bat | 32 |
| Big Brown Bat | 18 |
| Long-eared Myotis | 12 |
| Western Small-footed Myotis | 9 |
| Townsend's Big-eared Bat | 8 |
| Silver-haired Bat | 5 |
| Northern Hoary Bat | 3 |
| Long-legged Myotis | 2 |
In Wyoming, September carries 10.2% of the year's bats sightings, about 1.9 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 (33.9%) into September, and it heads toward October (2.8%) after. The busiest month is August (33.9%), so if timing is flexible, that window is the safer bet.
The bats most often recorded in Wyoming are Little Brown Bat, Big Brown Bat and Long-eared Myotis. 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 Bat32 records
- Big Brown Bat18 records
- Long-eared Myotis12 records
- Western Small-footed Myotis9 records
- Townsend's Big-eared Bat8 records
- Silver-haired Bat5 records
Plan your bat trip in Wyoming
Start with live tours near Bighorn Canyon National Recreation Area, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Bighorn Canyon National Recreation Area
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 Bighorn Canyon National Recreation Area
Compare hotels, cabins and lodges close to the best bat viewing area in Wyoming.
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Broader backupBook a bat tour in Wyoming
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 Wyoming in September?+
Yes. September accounts for 18 of the 177 verified bats sightings logged in Wyoming across the year, which is 10.2% of the annual total.
Is September a good time to see bats in Wyoming?+
September is the 4th busiest month. It is workable, though August and July is the stronger window for a reliable sighting.
What month is best for bats in Wyoming?+
August is the single busiest month, with the broader peak running through August, July and June, based on 177 verified observations.
Which bats are you most likely to see in Wyoming?+
The most-recorded species in Wyoming are Little Brown Bat, Big Brown Bat and Long-eared Myotis, based on all-time iNaturalist counts.
See bats in Wyoming in other months
More places to see bats
More wildlife in Wyoming