Monarch Butterflies in South Carolina in September

Yes, September is one of the best months to see monarch butterflies in South Carolina. It is the 2nd busiest month of the year, with 409 of the 1,991 sightings logged across the year (20.5%), 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 South CarolinaMonarch photographed in South CarolinaMonarch photographed in South Carolina
Photos by iNaturalist observers, used under Creative Commons.

Peak month for monarch butterflies in South Carolina

20.5%

of yearly sightings

409

records in September

#2

busiest month of 12

1,991

verified records a year

August 15%, September 20.5%, October 27.4%. Busiest month is October at 27.4%.

Best months: October, September, August

1,991 verified observations of monarch butterflies in South Carolina, recorded across 12 months of the year on iNaturalist.

When monarch butterflies are recorded in South Carolina

Peak month

October

545 records (27.4% of the year)

Quietest month

February

6 records

MonthObservationsShare
January170.9%
February60.3%
March221.1%
April1437.2%
May1879.4%
June854.3%
July663.3%
Augustpeak29815%
Septemberpeak40920.5%
Octoberpeak54527.4%
November1738.7%
December402%

Monarch Butterflies you are most likely to see

SpeciesVerified observations
Monarch1,991

In South Carolina, September carries 20.5% of the year's monarch butterflies sightings, about 12.2 points above an even month-to-month split. That makes it the 2nd busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from August (15%) into September, and it heads toward October (27.4%) after. This is right inside the peak window, so September is one of the surest months to plan a trip around.

The monarch butterflies most often recorded in South Carolina are Monarch. 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 monarch butterflies you are most likely to see

  • Monarch1,991 records
Plan your tripCharles Pinckney National Historic Site

Plan your monarch butterfly trip in South Carolina

Start with live tours near Charles Pinckney National Historic Site, 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 South Carolina in September?+

Yes. September accounts for 409 of the 1,991 verified monarch butterflies sightings logged in South Carolina across the year, which is 20.5% of the annual total.

Is September a good time to see monarch butterflies in South Carolina?+

September is one of the best months. It ranks 2nd of the year and sits inside the peak window of October, September and August.

What month is best for monarch butterflies in South Carolina?+

October is the single busiest month, with the broader peak running through October, September and August, based on 1,991 verified observations.

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

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