Monarch Butterflies in Arizona in August

Yes, August is a good month to see monarch butterflies in Arizona. It is the 5th busiest month of the year, with 204 of the 2,392 sightings logged across the year (8.5%), 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.

Monarch photographed in ArizonaMonarch photographed in ArizonaMonarch photographed in Arizona
Photos by iNaturalist observers, used under Creative Commons.

Good month for monarch butterflies in Arizona

8.5%

of yearly sightings

204

records in August

#5

busiest month of 12

2,392

verified records a year

July 3.6%, August 8.5%, September 14.2%. Busiest month is October at 17.1%.

Best months: October, November, September

2,392 verified observations of monarch butterflies in Arizona, recorded across 12 months of the year on iNaturalist.

When monarch butterflies are recorded in Arizona

Peak month

October

409 records (17.1% of the year)

Quietest month

June

30 records

MonthObservationsShare
January1737.2%
February1315.5%
March1476.1%
April1225.1%
May702.9%
June301.3%
July853.6%
August2048.5%
Septemberpeak34014.2%
Octoberpeak40917.1%
Novemberpeak40416.9%
December27711.6%

Monarch Butterflies you are most likely to see

SpeciesVerified observations
Monarch2,392

In Arizona, August carries 8.5% of the year's monarch butterflies sightings, about 0.2 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from July (3.6%) into August, and it heads toward September (14.2%) after. The busiest month is October (17.1%), so if timing is flexible, that window is the safer bet.

The monarch butterflies most often recorded in Arizona 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

  • Monarch2,392 records
Plan your tripChiricahua National Monument

Plan your monarch butterfly trip in Arizona

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

Frequently asked questions

Can you see monarch butterflies in Arizona in August?+

Yes. August accounts for 204 of the 2,392 verified monarch butterflies sightings logged in Arizona across the year, which is 8.5% of the annual total.

Is August a good time to see monarch butterflies in Arizona?+

August is the 5th busiest month. It is workable, though October and November is the stronger window for a reliable sighting.

What month is best for monarch butterflies in Arizona?+

October is the single busiest month, with the broader peak running through October, November and September, based on 2,392 verified observations.

Which monarch butterflies are you most likely to see in Arizona?+

The most-recorded species in Arizona are Monarch, based on all-time iNaturalist counts.