Jellyfishes in Alaska in June

Yes, June is one of the best months to see jellyfishes in Alaska. It is the 3rd busiest month of the year, with 284 of the 1,763 sightings logged across the year (16.1%), based on verified iNaturalist records.

T

By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.

Pacific Lion's Mane Jelly photographed in AlaskaGreater Moon Jelly photographed in AlaskaNorthern Sea Nettle photographed in Alaska
Photos by iNaturalist observers, used under Creative Commons.

Peak month for jellyfishes in Alaska

16.1%

of yearly sightings

284

records in June

#3

busiest month of 12

1,763

verified records a year

May 5.4%, June 16.1%, July 23.7%. Busiest month is July at 23.7%.

Best months: July, August, JunePeak season right now

1,763 verified observations of jellyfishes in Alaska, recorded across 12 months of the year on iNaturalist.

When jellyfishes are recorded in Alaska

Peak month

July

417 records (23.7% of the year)

Quietest month

January

11 records

MonthObservationsShare
January110.6%
February130.7%
March261.5%
April221.2%
May965.4%
Junepeak28416.1%
Julypeak41723.7%
Augustpeak41323.4%
September26415%
October1397.9%
November472.7%
December311.8%

Jellyfishes you are most likely to see

SpeciesVerified observations
Pacific Lion's Mane Jelly751
Northern Sea Nettle536
Greater Moon Jelly284
Egg-yolk Jelly31
Brown-rimmed Moon Jelly16
Pacific Sea Nettle1

In Alaska, June carries 16.1% of the year's jellyfishes sightings, about 7.8 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from May (5.4%) into June, and it heads toward July (23.7%) after. This is right inside the peak window, so June is one of the surest months to plan a trip around.

The jellyfishes most often recorded in Alaska are Pacific Lion's Mane Jelly, Northern Sea Nettle and Greater Moon Jelly. Those counts are annual totals rather than a June split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in June itself.

Which jellyfishes you are most likely to see

  • Pacific Lion's Mane Jelly751 records
  • Northern Sea Nettle536 records
  • Greater Moon Jelly284 records
  • Egg-yolk Jelly31 records
  • Brown-rimmed Moon Jelly16 records
  • Pacific Sea Nettle1 records
Plan your tripAlagnak Wild River

Plan your jellyfish trip in Alaska

Start with live tours near Alagnak Wild River, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see jellyfishes in Alaska in June?+

Yes. June accounts for 284 of the 1,763 verified jellyfishes sightings logged in Alaska across the year, which is 16.1% of the annual total.

Is June a good time to see jellyfishes in Alaska?+

June is one of the best months. It ranks 3rd of the year and sits inside the peak window of July, August and June.

What month is best for jellyfishes in Alaska?+

July is the single busiest month, with the broader peak running through July, August and June, based on 1,763 verified observations.

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

The most-recorded species in Alaska are Pacific Lion's Mane Jelly, Northern Sea Nettle and Greater Moon Jelly, based on all-time iNaturalist counts.