6 Best Places to See Jellyfishs in Maryland

Yes, jellyfish are a common and natural part of the marine environment in the Chesapeake Bay and along Maryland's Atlantic coast. Several species inhabit these waters, with numbers peaking during the warm summer months. This guide covers the best places to see jellyfish and how to enjoy the water safely in Maryland.

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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 Maryland

Cannonball Jelly · Nathan T. Jones CC BY

Bay Nettle photographed in Maryland

Bay Nettle · James CC BY

Bay Nettle photographed in Maryland

Bay Nettle · geosesarma CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Found in MarylandPeak season right now
8
species recorded
756
GBIF records
August, July, September
peak months

Yes, jellyfishes are in Maryland. Next you'll want:

Verified species, source iNaturalist

7 types of jellyfishes recorded in Maryland

7 jellyfish species have a verified observation record in Maryland across true jellyfish (class Scyphozoa), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

  • Bay Nettle (Chrysaora chesapeakei), a species recorded in Maryland1

    Bay Nettle

    Chrysaora chesapeakei

    919 records

    Alpha Wolf CC BY

    Wikipedia
  • Atlantic Lion's Mane Jelly (Cyanea fulva), a species recorded in Maryland2

    Atlantic Lion's Mane Jelly

    Cyanea fulva

    185 records
  • Dwarf Lion's Mane Jelly (Cyanea versicolor), a species recorded in Maryland3

    Dwarf Lion's Mane Jelly

    Cyanea versicolor

    53 records

    Cameron Christopher Dunn CC BY-SA

    Wikipedia
  • Common Moon Jelly (Aurelia aurita), a species recorded in Maryland4

    Common Moon Jelly

    Aurelia aurita

    32 records
  • Southern Moon Jelly (Aurelia marginalis), a species recorded in Maryland5

    Southern Moon Jelly

    Aurelia marginalis

    30 records

    Michelle Sevcovas CC BY

    Wikipedia
  • Mushroom Jelly (Rhopilema verrilli), a species recorded in Maryland6

    Mushroom Jelly

    Rhopilema verrilli

    28 records

    Public domain CC0

    Wikipedia
  • Atlantic Sea Nettle (Chrysaora quinquecirrha), a species recorded in Maryland7

    Atlantic Sea Nettle

    Chrysaora quinquecirrha

    12 records

    Pauline Walsh Jacobson CC BY

    Wikipedia

Plus 1 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.

Real sighting data, source iNaturalist

1,444 verified observations on iNaturalist of jellyfish have been recorded in Maryland, most often in August, July, September.

When jellyfish are recorded in Maryland

Yes, jellyfish are a common and natural part of the marine environment in the Chesapeake Bay and along Maryland's Atlantic coast. Several species inhabit these waters, with numbers peaking during the warm summer months. This guide covers the best places to see jellyfish and how to enjoy the water safely in Maryland.

1. Assateague Island National Seashore

Assateague Island is one of the premier spots for seeing jellyfish in Maryland. They are frequently seen in the surf and washed up on the pristine beaches. The island's salt marshes and coastal bays also provide ideal habitats for a variety of species. It is a great place for a long walk to look for marine life.

2. Sandy Point State Park

Sandy Point State Park near Annapolis is a popular location for seeing jellyfish in the Chesapeake Bay. During the summer, moon jellyfish and sea nettles are common in the park's swimming areas. Lifeguards here monitor conditions and can provide information on jellyfish activity and safety.

3. Ocean City Beach

The beaches of Ocean City are a hotspot for jellyfish activity during the summer months. You can often see them swimming in the clear Atlantic waters or washed up on the sand. Be sure to check the color of the beach flags for safety warnings regarding stinging sea life and other ocean hazards.

4. Calvert Cliffs State Park

Calvert Cliffs State Park offers a unique perspective on marine life, with its famous cliffs and sandy beaches along the Chesapeake Bay. Jellyfish are often seen in the shallow waters near the shore. It is a great place to combine beachcombing with observing the bay's fascinating marine creatures.

5. Chesapeake Bay Maritime Museum

The Chesapeake Bay Maritime Museum in St. Michaels features exhibits on the bay's ecosystem, including its jellyfish. The museum's waterfront location provides opportunities to see jellyfish in the surrounding waters. It is an educational and interesting place to learn about the role of jellyfish in the bay's environment.

How to plan a realistic Maryland jellyfish trip

A good Maryland jellyfish plan involves understanding the seasonal patterns and local water conditions. Jellyfish are most abundant when the water is warm, typically from June through August. Check local beach reports and be mindful of the wind and tides. Use theMaryland wildlife hubfor more context.

What are the most common jellyfish in Maryland?

The moon jellyfish, with its translucent bell and mild sting, is very common. Sea nettles are the most frequent stinging species in the Chesapeake Bay. Along the coast, you may also see cannonball jellyfish and the occasional Portuguese man o' war brought in by the wind and currents. For more identification tips, see ourjellyfish guide.

Jellyfish-themed gifts for ocean lovers

If you find the ethereal beauty of jellyfish inspiring, you might enjoy these themed items for your home or as a gift.

LED Jellyfish Mood Lamp []() A mesmerizing lamp that features realistic jellyfish in a color-changing tank. Perfect for a nightlight or office accessory. Check Price and Availability

When is the best time to see jellyfish in Maryland?

The peak season is during the summer months when water temperatures are at their highest. Early morning and late afternoon often provide the best light for seeing jellyfish in the water. After a period of strong onshore winds, you are more likely to see them washed up on the beaches and in the bay's coves.

Are jellyfish in Maryland dangerous?

While most jellyfish in Maryland are harmless or have very mild stings, sea nettles and the Portuguese man o' war can deliver painful stings. It is always best to avoid touching any jellyfish, even those that appear dead on the sand. If you are stung, rinse the area with vinegar and remove any tentacles carefully.

What is the role of jellyfish in the Chesapeake Bay?

Jellyfish are a natural and important part of the Chesapeake Bay's food web. They prey on a variety of small organisms, including plankton, fish larvae, and other jellyfish. In turn, they are eaten by sea turtles and some fish species. They are a sign of the bay's complex and productive marine ecosystem.

Plan your trip

Best time to see jellyfish in Maryland: August, July, September

See the month-by-month sighting calendar.

When to go

Plan your jellyfish sighting in Maryland

756 verified jellyfish records have been logged in Maryland, most recently in 2026. See the GBIF records.

Where to look in Maryland

Planning a trip to see jellyfish? Find places to stay near Antietam National Battlefield on Booking.com.

Frequently asked questions

What jellyfish species live in Maryland?+

The moon jellyfish, with its translucent bell and mild sting, is very common. Sea nettles are the most frequent stinging species in the Chesapeake Bay. Along the coast, you may also see cannonball jellyfish and the occasional Portuguese man o' war brought in by the wind and currents. For more identification tips, see ourjellyfish guide.

Where can you see jellyfish in Maryland?+

The moon jellyfish, with its translucent bell and mild sting, is very common. Sea nettles are the most frequent stinging species in the Chesapeake Bay. Along the coast, you may also see cannonball jellyfish and the occasional Portuguese man o' war brought in by the wind and currents. For more identification tips, see ourjellyfish guide.

When is the best time to see jellyfish in Maryland?+

The peak season is during the summer months when water temperatures are at their highest. Early morning and late afternoon often provide the best light for seeing jellyfish in the water. After a period of strong onshore winds, you are more likely to see them washed up on the beaches and in the bay's coves.