Bighorn Sheep in Montana in September
Yes, September is a good month to see bighorn sheep in Montana. It is the 4th busiest month of the year, with 207 of the 2,008 sightings logged across the year (10.3%), 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 bighorn sheep in Montana
10.3%
of yearly sightings
207
records in September
#4
busiest month of 12
2,008
verified records a year
August 24.4%, September 10.3%, October 2.4%. Busiest month is July at 30.4%.
2,008 verified observations of bighorn sheep in Montana, recorded across 12 months of the year on iNaturalist.
When bighorn sheep are recorded in Montana
Peak month
July
610 records (30.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 44 | 2.2% |
| February | 30 | 1.5% |
| March | 48 | 2.4% |
| April | 53 | 2.6% |
| May | 119 | 5.9% |
| Junepeak | 274 | 13.6% |
| Julypeak | 610 | 30.4% |
| Augustpeak | 490 | 24.4% |
| September | 207 | 10.3% |
| October | 49 | 2.4% |
| November | 45 | 2.2% |
| December | 39 | 1.9% |
Bighorn Sheep you are most likely to see
| Species | Verified observations |
|---|---|
| Bighorn Sheep | 2,008 |
In Montana, September carries 10.3% of the year's bighorn sheep sightings, about 2 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 (24.4%) into September, and it heads toward October (2.4%) after. The busiest month is July (30.4%), so if timing is flexible, that window is the safer bet.
The bighorn sheep most often recorded in Montana are Bighorn Sheep. 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 bighorn sheep you are most likely to see
- Bighorn Sheep2,008 records
Plan your bighorn sheep trip in Montana
Start with live tours near Big Hole National Battlefield, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Big Hole National Battlefield
Use the live GetYourGuide widget to compare local departures and activity styles close to the main bighorn sheep viewing area.
Booking.com
Stay nearbyStay near Big Hole National Battlefield
Compare hotels, cabins and lodges close to the best bighorn sheep viewing area in Montana.
Viator
Broader backupBook a bighorn sheep tour in Montana
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see bighorn sheep in Montana in September?+
Yes. September accounts for 207 of the 2,008 verified bighorn sheep sightings logged in Montana across the year, which is 10.3% of the annual total.
Is September a good time to see bighorn sheep in Montana?+
September is the 4th busiest month. It is workable, though July and August is the stronger window for a reliable sighting.
What month is best for bighorn sheep in Montana?+
July is the single busiest month, with the broader peak running through July, August and June, based on 2,008 verified observations.
Which bighorn sheep are you most likely to see in Montana?+
The most-recorded species in Montana are Bighorn Sheep, based on all-time iNaturalist counts.
See bighorn sheep in Montana in other months
More wildlife in Montana