Jellyfishes in New Hampshire in May
Yes, May is one of the best months to see jellyfishes in New Hampshire. It is the 3rd busiest month of the year, with 12 of the 56 sightings logged across the year (21.4%), 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 June 28, 2026.
Peak month for jellyfishes in New Hampshire
21.4%
of yearly sightings
12
records in May
#3
busiest month of 12
56
verified records a year
April 0%, May 21.4%, June 37.5%. Busiest month is June at 37.5%.
56 verified observations of jellyfishes in New Hampshire, recorded across 4 months of the year on iNaturalist.
When jellyfishes are recorded in New Hampshire
Peak month
June
21 records (37.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| Maypeak | 12 | 21.4% |
| Junepeak | 21 | 37.5% |
| Julypeak | 15 | 26.8% |
| August | 8 | 14.3% |
| September | 0 | 0% |
| October | 0 | 0% |
| November | 0 | 0% |
| December | 0 | 0% |
Jellyfishes you are most likely to see
| Species | Verified observations |
|---|---|
| Atlantic Lion's Mane Jelly | 18 |
| Common Moon Jelly | 2 |
| Sea Nettles | 1 |
| Lion's Mane Jelly | 1 |
| Purple-striped Jellies | 1 |
In New Hampshire, May carries 21.4% of the year's jellyfishes sightings, about 13.1 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 4 months with recorded activity.
Activity is rising from April (0%) into May, and it heads toward June (37.5%) after. This is right inside the peak window, so May is one of the surest months to plan a trip around.
The jellyfishes most often recorded in New Hampshire are Atlantic Lion's Mane Jelly, Common Moon Jelly and Sea Nettles. Those counts are annual totals rather than a May split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in May itself.
Which jellyfishes you are most likely to see
- Atlantic Lion's Mane Jelly18 records
- Common Moon Jelly2 records
- Sea Nettles1 records
- Lion's Mane Jelly1 records
- Purple-striped Jellies1 records
Plan your jellyfish trip in New Hampshire
Start with live tours near Appalachian National Scenic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Appalachian National Scenic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main jellyfish viewing area.
Booking.com
Stay nearbyStay near Appalachian National Scenic Trail
Compare hotels, cabins and lodges close to the best jellyfish viewing area in New Hampshire.
Viator
Broader backupBook a jellyfish tour in New Hampshire
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 New Hampshire in May?+
Yes. May accounts for 12 of the 56 verified jellyfishes sightings logged in New Hampshire across the year, which is 21.4% of the annual total.
Is May a good time to see jellyfishes in New Hampshire?+
May is one of the best months. It ranks 3rd of the year and sits inside the peak window of June, July and May.
What month is best for jellyfishes in New Hampshire?+
June is the single busiest month, with the broader peak running through June, July and May, based on 56 verified observations.
Which jellyfishes are you most likely to see in New Hampshire?+
The most-recorded species in New Hampshire are Atlantic Lion's Mane Jelly, Common Moon Jelly and Sea Nettles, based on all-time iNaturalist counts.
See jellyfishes in New Hampshire in other months
More places to see jellyfishes
More wildlife in New Hampshire