Monarch Butterflies in Indiana in August
Yes, August is one of the best months to see monarch butterflies in Indiana. It is the 1st busiest month of the year, with 1,605 of the 4,852 sightings logged across the year (33.1%), 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.
Peak month for monarch butterflies in Indiana
33.1%
of yearly sightings
1,605
records in August
#1
busiest month of 12
4,852
verified records a year
July 17.1%, August 33.1%, September 33%. Busiest month is August at 33.1%.
4,852 verified observations of monarch butterflies in Indiana, recorded across 11 months of the year on iNaturalist.
When monarch butterflies are recorded in Indiana
Peak month
August
1,605 records (33.1% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 1 | 0% |
| March | 1 | 0% |
| April | 11 | 0.2% |
| May | 122 | 2.5% |
| June | 332 | 6.8% |
| Julypeak | 832 | 17.1% |
| Augustpeak | 1,605 | 33.1% |
| Septemberpeak | 1,600 | 33% |
| October | 334 | 6.9% |
| November | 13 | 0.3% |
| December | 1 | 0% |
Monarch Butterflies you are most likely to see
| Species | Verified observations |
|---|---|
| Monarch | 4,852 |
In Indiana, August carries 33.1% of the year's monarch butterflies sightings, about 24.8 points above an even month-to-month split. That makes it the 1st busiest of the twelve months, out of 11 months with recorded activity.
Activity is rising from July (17.1%) into August, and it heads toward September (33%) after. This is right inside the peak window, so August is one of the surest months to plan a trip around.
The monarch butterflies most often recorded in Indiana are Monarch. 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 monarch butterflies you are most likely to see
- Monarch4,852 records
Plan your monarch butterfly trip in Indiana
Start with live tours near Indiana Dunes National Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
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Live tours nearbySee live tours near Indiana Dunes National Park
Use the live GetYourGuide widget to compare local departures and activity styles close to the main monarch butterfly viewing area.
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Stay nearbyStay near Indiana Dunes National Park
Compare hotels, cabins and lodges close to the best monarch butterfly viewing area in Indiana.
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Broader backupBook a monarch butterfly tour in Indiana
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 monarch butterflies in Indiana in August?+
Yes. August accounts for 1,605 of the 4,852 verified monarch butterflies sightings logged in Indiana across the year, which is 33.1% of the annual total.
Is August a good time to see monarch butterflies in Indiana?+
August is one of the best months. It ranks 1st of the year and sits inside the peak window of August, September and July.
What month is best for monarch butterflies in Indiana?+
August is the single busiest month, with the broader peak running through August, September and July, based on 4,852 verified observations.
Which monarch butterflies are you most likely to see in Indiana?+
The most-recorded species in Indiana are Monarch, based on all-time iNaturalist counts.
See monarch butterflies in Indiana in other months
More wildlife in Indiana