Bighorn Sheep in South Dakota in August

Yes, August is one of the best months to see bighorn sheep in South Dakota. It is the 3rd busiest month of the year, with 339 of the 2,010 sightings logged across the year (16.9%), 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 June 28, 2026.

Bighorn Sheep photographed in South DakotaRocky Mountain Bighorn Sheep photographed in South DakotaBighorn Sheep photographed in South Dakota
Photos by iNaturalist observers, used under Creative Commons.

Peak month for bighorn sheep in South Dakota

16.9%

of yearly sightings

339

records in August

#3

busiest month of 12

2,010

verified records a year

July 19.2%, August 16.9%, September 12.4%. Busiest month is June at 20%.

Best months: June, July, AugustPeak season right now

2,010 verified observations of bighorn sheep in South Dakota, recorded across 12 months of the year on iNaturalist.

When bighorn sheep are recorded in South Dakota

Peak month

June

401 records (20% of the year)

Quietest month

February

14 records

MonthObservationsShare
January190.9%
February140.7%
March462.3%
April603%
May27913.9%
Junepeak40120%
Julypeak38619.2%
Augustpeak33916.9%
September24912.4%
October1427.1%
November482.4%
December271.3%

Bighorn Sheep you are most likely to see

SpeciesVerified observations
Bighorn Sheep2,010

In South Dakota, August carries 16.9% of the year's bighorn sheep sightings, about 8.6 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 July (19.2%) into August, and it heads toward September (12.4%) after. This is right inside the peak window, so August is one of the surest months to plan a trip around.

The bighorn sheep most often recorded in South Dakota are Bighorn Sheep. Those counts are annual totals rather than a August split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in August itself.

Which bighorn sheep you are most likely to see

  • Bighorn Sheep2,010 records
Plan your tripBadlands National Park

Plan your bighorn sheep trip in South Dakota

Start with live tours near Badlands National Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see bighorn sheep in South Dakota in August?+

Yes. August accounts for 339 of the 2,010 verified bighorn sheep sightings logged in South Dakota across the year, which is 16.9% of the annual total.

Is August a good time to see bighorn sheep in South Dakota?+

August is one of the best months. It ranks 3rd of the year and sits inside the peak window of June, July and August.

What month is best for bighorn sheep in South Dakota?+

June is the single busiest month, with the broader peak running through June, July and August, based on 2,010 verified observations.

Which bighorn sheep are you most likely to see in South Dakota?+

The most-recorded species in South Dakota are Bighorn Sheep, based on all-time iNaturalist counts.