Are there Jellyfish in Croatia? All You Need to Know (2024)

Are there jellyfish in Croatia?

Are you wondering if are there jellyfish in Croatia? You’ve come to the right place!

In this post, I will tell you all you need to know about jellyfish in Croatia and the reality of the jellyfish situation along the Croatian coast in the Adriatic Sea.


Yes, there are jellyfish in Croatian waters, but you don’t have to worry because the Adriatic Sea is super safe for swimming. 

In this post, I’ll deepen into the jellyfish situation, providing valuable insights and practical tips for a safe and enjoyable beach experience in Croatia. 

Get ready to dive into the world of jellyfish in Croatia and make the most of your coastal adventures!

Are there Jellyfish in Croatia?

cauliflower jellyfish or Cephea cephea

Along the stunning coastline of Croatia, with its crystal clear waters and picturesque beaches, one may wonder if there are jellyfish lurking beneath the surface. 

Well, the short answer is yes, there are jellyfish in Croatian waters. 

However, before you cancel your beach vacation and run for cover, let’s delve into this topic and get all the information you need to know. 

Jellyfish in Croatia: All you need to know

Mauve Stinger or Pelagia noctiluca

When it comes to jellyfish encounters in Croatia, it’s important to note that not all species pose a threat to humans

1. Most Common Types of Jellyfish in Croatia

The most common species found along the Croatian coast is the Chrysaora Hysoscella or compass jellyfish. 

While their sting can cause discomfort and mild pain, it’s rarely severe enough to ruin your day at the beach or your snorkeling in Croatia

In fact, many locals and visitors enjoy swimming with these graceful creatures without incident.

Young man snorkeling in Beach Jakiruša Croatia

That being said, it’s always a good idea to be aware of potential risks. 

Some areas along the Croatian coast may have higher concentrations of jellyfish

For example, Dubrovnik has gained a reputation for occasional sightings of larger species such as Adriatic jellyfish.

These encounters with these jellyfish in Dubrovnik are usually infrequent but can occur during certain seasons. 

Sea Life with Jellyfish Underwater in Blue Sea with Sandy Bottom

Summing up, the most common species of jellyfish found in Croatia include

  • Moon Jellyfish (Aurelia Aurita): These are the most common type in Croatian waters. Transparent and ethereal, they pose no threat to humans.
  • Fried Egg Jellyfish (Cotylorhiza Tuberculata): Named for their distinctive yolk-like center, they’re harmless and a frequent sight.
  • Mauve Stinger (Pelagia noctiluca): More elusive and capable of causing painful stings, however, encounters with these jellyfish are relatively rare in Croatia.

2. Jellyfish season in Croatia

If you’re planning on visiting Croatia during jellyfish season (which typically runs from May through September), taking some precautions can go a long way in ensuring an enjoyable beach experience. 

Fried Egg Jellyfish or Cotylorhiza Tuberculata

As the temperatures rise and summer approaches, the Adriatic Sea comes alive with these mesmerizing creatures.

3. Jellyfish in Croatia Safety Tips

Wearing water shoes is advisable as they provide protection against not only Croatia jellyfish stings but also sea urchin spines – another potential hazard present in Croatian waters. 

Moreover, staying informed about current conditions by checking local reports or speaking with lifeguards can help you make informed decisions about where and when to swim. 

It’s worth mentioning that authorities continuously monitor water quality throughout Croatia; therefore, any contaminated areas are promptly identified and marked off limits. 

You should pay attention to any warning signs or flags posted on beaches indicating recent sightings or unsafe conditions due to jellyfish presence. 

Young woman snorkeling in Trogir Croatia

In case you do get stung by a jellyfish in Croatia (or anywhere else), there are some steps you can follow for initial treatment. 

  • First and foremost, rinse the affected area with saltwater – never use fresh water as this may aggravate the sting further due to changes in osmotic pressure on the tentacles remaining on your skin. 
  • Second, rely on a special cream or gel specifically designed for this purpose. These products are available at most local pharmacies and beach shops throughout the Croatian coast. 

Despite occasional encounters with these gelatinous creatures, don’t let them deter you from exploring the wonders of Croatia’s shores

The good news is that jellyfish populations are relatively stable, and the chances of a painful sting ruining your vacation are minimal. 

So dive in, let the saltwater envelop you, and embrace the beauty that awaits beneath the surface — jellyfish and all.

The jellyfish situation along the Croatian coast

The Adriatic Sea, where Croatia is located, is home to several species of jellyfish

During the summer months, when tourists flock to Croatia’s islands to enjoy the crystal-clear waters, jellyfish sightings become more common. 

In certain areas along the coast, such as Dubrovnik, and some parts of the northern Adriatic such as the islands near Zadar, there have been reports of increased jellyfish activity

However, it’s important to note that these occurrences are sporadic and do not affect every beach in Croatia. 

Man snorkeling in adriatic sea Croatia

While jellyfish sightings along the Croatian coast are not an everyday occurrence, it’s wise to be aware of their potential presence during certain times of the year. 

One of the most surprising encounters in recent years was a gigantic jellyfish found near Trogir in 2021 by marine scientists from the Institute of Oceanography and Fisheries.

By taking simple precautions and being prepared with appropriate remedies in case of a sting, you can still enjoy your time in Croatia’s beautiful waters without worrying about encountering these fascinating yet sometimes pesky creatures.

Other Dangerous Animals in Croatia’s Waters

While exploring the beautiful waters of Croatia, it’s important to be aware of not only jellyfish but also other potentially harmful creatures


Before you start panicking, let me assure you that encountering sharks in Croatian waters is rare and should not deter you from enjoying the Adriatic Sea. 

Mako shark in Croatia

The most common type of shark you might come across is the harmless dogfish shark, also known as the small-spotted catshark.

These small creatures are typically found in deeper waters and pose no threat to humans

In fact, they are often hunted by local fishermen for their meat. 

While it is highly unlikely to encounter a dangerous shark species such as a great white or tiger shark along the Croatian coast, it’s always wise to exercise caution while swimming in open waters. 

So, rest assured that while sharks do exist in Croatian waters, they are mostly harmless species that pose minimal threat to humans. 

Sea Urchins

Another marine creature that you may encounter is the sea urchin

These spiky creatures are commonly found along the Adriatic coast and can sometimes cause some discomfort if stepped on. 

Their round bodies are covered in sharp spines, which serve as their defense mechanism against predators. 

While they may not pose as much of a threat as jellyfish, stepping on a sea urchin can still result in some painful consequences.

The spines of a sea urchin can puncture the skin and cause severe pain. 

Live Sea Urchins Lie on a Rock

It’s essential to exercise caution when walking in areas where sea urchins are known to reside, especially around rocky or coral-covered areas

Wearing water shoes or sandals can provide some protection against accidental encounters with these prickly creatures. 

If you happen to step on a sea urchin and get pricked by its spines, it’s crucial to seek immediate medical attention.

In most cases, the area around the puncture wound will become swollen and painful. 


These small fish, also known as stinging weever or greater weever, have venomous spines on their dorsal fins that can cause severe pain if you happen to step on them. 

While not as common as jellyfish, weevers can be found in the Adriatic Sea, particularly in areas with sandy or rocky bottoms

Greater Weaver

Stepping on a weever’s spine can be quite painful, but luckily there are ways to prevent it. 

Wearing water shoes or sandals while swimming is a great precautionary measure. 

It’s worth noting that encountering weevers is relatively rare compared to other marine creatures along Croatia’s coastline.

While they may pose some risks, they shouldn’t deter you from enjoying your time in Croatian waters. 

FAQ about Jellyfish in Croatia

  1. Are jellyfish in Croatia dangerous?

    No. Most jellyfish in Croatia are not dangerous, but some stings can be painful.

  2. Are jellyfish common in Croatia?

    Jellyfish are common in Croatia, especially in the summer.

  3. Are there dangerous jellyfish in Croatia?

    Dangerous jellyfish like the Mauve Stinger can be found in Croatia but are rare.

  4. Are there poisonous jellyfish in Croatia?

    Most jellyfish in Croatia are not poisonous, but some can sting.

  5. Are there jellyfish in the Adriatic Sea?

    Yes, there are various species of jellyfish in the Adriatic Sea.

  6. Is jellyfish in Croatia dangerous?

    Most jellyfish in Croatia are not dangerous. While the Mauve Stinger can cause a painful sting, it's rare. The common Moon and Fried Egg Jellyfish are harmless.

  7. Does Dubrovnik have jellyfish?

    Yes, Dubrovnik can have jellyfish, especially in warmer months.

  8. What are the types of jellyfish in the Adriatic Sea?

    The Adriatic Sea hosts several types of jellyfish including the harmless Moon Jellyfish (Aurelia Aurita) Fried Egg Jellyfish (Cotylorhiza tuberculata), and the rarer, stinging Mauve Stinger (Pelagia noctiluca).

Final thoughts: Are there Jellyfish in Croatia?

As you may know after reading the post, yes, there are jellyfish in Croatia, but they are not always present in large numbers. 

The specific species of jellyfish that you might encounter can vary, but some common ones include the compass jellyfish and Chrysaora Hysoscella

If you’re wondering if encountering jellyfish in Croatia is dangerous, it depends on the individual and the severity of the sting. 

For most people, a jellyfish sting will result in some discomfort and pain, but it usually isn’t life-threatening. 

snorkeling in adriatic sea Croatia

However, for those who have allergies or sensitivities to jellyfish stings, or for those who experience severe reactions, encounters with jellyfish can be more serious. 

By being aware of their presence and taking necessary precautions, you can still enjoy the beautiful beaches and clear waters that Croatia has to offer. 

So dive in, embrace the natural wonders of the Mediterranean Sea, and don’t let jellyfish deter you from exploring Croatia’s stunning wonders like my favorites: Zadar, Brac island, or the beautiful Dugi Otok island!  

Like this post? Pin it!

Are there Jellyfish in Croatia?

Sara Rodríguez

A passionate traveler with a mission: Help you plan your next trip easily and enjoy it to the fullest.

In this travel blog you will find everything you need to get inspired and organize your next adventure. Read more about my story here.

Leave a Reply

Your email address will not be published. Required fields are marked *

I have read and accept the Privacy Policy

Únete a la comunidad viajera. ¡Ya somos más de 300 mil viajeros!

He leído y acepto la Privacy Policy