Jellyfishes in Alabama in September

Yes, September is one of the best months to see jellyfishes in Alabama. It is the 2nd busiest month of the year, with 125 of the 900 sightings logged across the year (13.9%), 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 July 2, 2026.

Cannonball Jelly photographed in AlabamaBay Nettle photographed in AlabamaPink Meanie photographed in Alabama
Photos by iNaturalist observers, used under Creative Commons.

Peak month for jellyfishes in Alabama

13.9%

of yearly sightings

125

records in September

#2

busiest month of 12

900

verified records a year

August 15%, September 13.9%, October 12.6%. Busiest month is August at 15%.

Best months: August, September, October

900 verified observations of jellyfishes in Alabama, recorded across 12 months of the year on iNaturalist.

When jellyfishes are recorded in Alabama

Peak month

August

135 records (15% of the year)

Quietest month

December

19 records

MonthObservationsShare
January667.3%
February899.9%
March10611.8%
April232.6%
May384.2%
June647.1%
July10211.3%
Augustpeak13515%
Septemberpeak12513.9%
Octoberpeak11312.6%
November202.2%
December192.1%

Jellyfishes you are most likely to see

SpeciesVerified observations
Bay Nettle218
Mushroom Jelly192
Southern Moon Jelly126
Cannonball Jelly27
Dwarf Lion's Mane Jelly27
Pink Meanie25
Atlantic Sea Nettle19
Common Moon Jelly1

In Alabama, September carries 13.9% of the year's jellyfishes sightings, about 5.6 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 easing off from August (15%) into September, and it heads toward October (12.6%) after. This is right inside the peak window, so September is one of the surest months to plan a trip around.

The jellyfishes most often recorded in Alabama are Bay Nettle, Mushroom Jelly and Southern Moon Jelly. 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 jellyfishes you are most likely to see

  • Bay Nettle218 records
  • Mushroom Jelly192 records
  • Southern Moon Jelly126 records
  • Cannonball Jelly27 records
  • Dwarf Lion's Mane Jelly27 records
  • Pink Meanie25 records
Plan your tripHorseshoe Bend National Military Park

Plan your jellyfish trip in Alabama

Start with live tours near Horseshoe Bend National Military Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see jellyfishes in Alabama in September?+

Yes. September accounts for 125 of the 900 verified jellyfishes sightings logged in Alabama across the year, which is 13.9% of the annual total.

Is September a good time to see jellyfishes in Alabama?+

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

What month is best for jellyfishes in Alabama?+

August is the single busiest month, with the broader peak running through August, September and October, based on 900 verified observations.

Which jellyfishes are you most likely to see in Alabama?+

The most-recorded species in Alabama are Bay Nettle, Mushroom Jelly and Southern Moon Jelly, based on all-time iNaturalist counts.