Jellyfishes in Hawaii in April
Yes, April is a good month to see jellyfishes in Hawaii. It is the 5th busiest month of the year, with 20 of the 215 sightings logged across the year (9.3%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.
Good month for jellyfishes in Hawaii
9.3%
of yearly sightings
20
records in April
#5
busiest month of 12
215
verified records a year
March 9.3%, April 9.3%, May 5.1%. Busiest month is January at 14%.
215 verified observations of jellyfishes in Hawaii, recorded across 12 months of the year on iNaturalist.
When jellyfishes are recorded in Hawaii
Peak month
January
30 records (14% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 30 | 14% |
| February | 17 | 7.9% |
| March | 20 | 9.3% |
| April | 20 | 9.3% |
| May | 11 | 5.1% |
| June | 11 | 5.1% |
| Julypeak | 23 | 10.7% |
| August | 14 | 6.5% |
| September | 19 | 8.8% |
| October | 9 | 4.2% |
| November | 19 | 8.8% |
| Decemberpeak | 22 | 10.2% |
Jellyfishes you are most likely to see
| Species | Verified observations |
|---|---|
| Mangrove Upsidedown Jelly | 90 |
| Aurelia malayensis | 11 |
| Cauliflower Jelly | 5 |
| Asian moon jellyfish | 5 |
| Pelagic Purple Jelly | 5 |
| Golden Jellies | 3 |
| Anomalorhiza shawi | 3 |
| South Pacific Mauve Stinger | 2 |
In Hawaii, April carries 9.3% of the year's jellyfishes sightings, about 1 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 holds steady between March and April, and it heads toward May (5.1%) after. The busiest month is January (14%), so if timing is flexible, that window is the safer bet.
The jellyfishes most often recorded in Hawaii are Mangrove Upsidedown Jelly, Aurelia malayensis and Cauliflower Jelly. Those counts are annual totals rather than a April split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in April itself.
Which jellyfishes you are most likely to see
- Mangrove Upsidedown Jelly90 records
- Aurelia malayensis11 records
- Cauliflower Jelly5 records
- Asian moon jellyfish5 records
- Pelagic Purple Jelly5 records
- Golden Jellies3 records
Plan your jellyfish trip in Hawaii
Start with live tours near Ala Kahakai National Historic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Ala Kahakai National Historic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main jellyfish viewing area.
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Stay nearbyStay near Ala Kahakai National Historic Trail
Compare hotels, cabins and lodges close to the best jellyfish viewing area in Hawaii.
Viator
Broader backupBook a jellyfish tour in Hawaii
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see jellyfishes in Hawaii in April?+
Yes. April accounts for 20 of the 215 verified jellyfishes sightings logged in Hawaii across the year, which is 9.3% of the annual total.
Is April a good time to see jellyfishes in Hawaii?+
April is the 5th busiest month. It is workable, though January and July is the stronger window for a reliable sighting.
What month is best for jellyfishes in Hawaii?+
January is the single busiest month, with the broader peak running through January, July and December, based on 215 verified observations.
Which jellyfishes are you most likely to see in Hawaii?+
The most-recorded species in Hawaii are Mangrove Upsidedown Jelly, Aurelia malayensis and Cauliflower Jelly, based on all-time iNaturalist counts.
See jellyfishes in Hawaii in other months
More places to see jellyfishes
More wildlife in Hawaii