Best Time to See Mountain Lions in South Dakota
May, April and January is the best time to see mountain lions in South Dakota. Based on 37 verified iNaturalist observations, here is exactly when mountain lions are most active across the year in South Dakota.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
37 verified observations of mountain lions in South Dakota, recorded across 10 months of the year on iNaturalist.
When mountain lions are recorded in South Dakota
Peak month
May
17 records (45.9% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 4 | 10.8% |
| February | 1 | 2.7% |
| March | 2 | 5.4% |
| Aprilpeak | 6 | 16.2% |
| Maypeak | 17 | 45.9% |
| June | 3 | 8.1% |
| July | 1 | 2.7% |
| August | 0 | 0% |
| September | 0 | 0% |
| October | 1 | 2.7% |
| November | 1 | 2.7% |
| December | 1 | 2.7% |
Mountain Lions you are most likely to see
| Species | Verified observations |
|---|---|
| Mountain Lion | 37 |
Weather to expect, source Open-Meteo
Typical weather in South Dakota
Recent typical conditions by month, so you can plan a trip around both when mountain lions are active and what the weather is doing. The best months to look for mountain lions sit around 16 to 68 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Janbest time | 31°F | 16°F | 0.5" |
| Feb | 31°F | 11°F | 0.7" |
| Mar | 44°F | 25°F | 1.6" |
| Aprbest time | 54°F | 34°F | 2.4" |
| Maybest time | 68°F | 49°F | 3.7" |
| Jun | 84°F | 63°F | 2.2" |
| Jul | 87°F | 67°F | 2.5" |
| Aug | 86°F | 66°F | 1.6" |
| Sep | 78°F | 58°F | 2.1" |
| Oct | 58°F | 40°F | 2" |
| Nov | 46°F | 29°F | 0.8" |
| Dec | 35°F | 19°F | 1.3" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for South Dakota. Weather varies year to year, so treat these as a guide.
More on mountain lions in South Dakota:
Sightings of mountain lions in South Dakota peak in May, when 17 of the year's 37 verified observations are logged — about 45.9% of the annual total. Activity stays high through May, April and January.
The quietest stretch is August, September and February, when mountain lions are hardest to find — no verified records exist for August. If a reliable sighting matters, plan around the peak window rather than the off-season.
The mountain lions you are most likely to encounter in South Dakota are Mountain Lion — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see mountain lions in South Dakota
- Badlands National Park — National Park
- Jewel Cave National Monument — National Monument
- Lewis & Clark National Historic Trail — National Historic Trail
- Missouri National Recreational River — National Recreational River
- Wind Cave National Park — National Park
- Minuteman Missile National Historic Site — National Historic Site
Frequently asked questions
What is the best month to see mountain lions in South Dakota?+
May is the single best month, and the broader peak window runs through May, April and January, based on 37 verified iNaturalist observations.
When are mountain lions hardest to see in South Dakota?+
August is the quietest month for mountain lions in South Dakota, with no verified records on iNaturalist.
Are mountain lions active year-round in South Dakota?+
Mountain lions are recorded in 10 of 12 months in South Dakota, concentrated around May and April.
More places to see mountain lions
More wildlife in South Dakota