Based on 6,551 research-grade iNaturalist observations in Florida, Ceraunus Blue is most often recorded in September; in Florida it behaves like a year-round resident. It ranks #11 among butterflies recorded in the state in our data.
Hemiargus ceraunus
Ceraunus Blue in Florida by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Florida in September

Gulf Fritillary
White Peacock

Long-tailed Skipper

Cloudless Sulphur

Monarch

Spicebush Swallowtail

Horace's Duskywing
Zebra Longwing
Places to look in Florida
Vizcaya Museum and Gardens
Zoo Miami
Bok Tower Gardens
Fort Zachary Taylor Historic State Park
Fort Mose Historic State Park
Butterfly World
FAQ
When does Ceraunus Blue appear in Florida?
Mainly August–July, with the most records in September.
How common is Ceraunus Blue in Florida?
It ranks #11 by number of iNaturalist observations among butterflies in Florida (6,551 records in our sample).