Is Istria good for beginner divers?

Yes, partly: 7 of the 16 dive sites we document are suited to Open Water divers, including Figarola Island (Sv. Eufemija), Koversada (Lim Fjord entrance) and Porto Sole Bay (house reef). The others need more experience or a higher certification.

What is the water temperature in Istria?

The water is usually between 7 °C and 29 °C over the year.

What marine life can you see in Istria?

Divers regularly see crustaceans, cuttlefish, nudibranchs, octopus, scorpionfish and conger eel.

Istria

Diving in Croatia

16 documented dive sites, 7 of them for Open Water divers. Known for crustaceans, cuttlefish and nudibranchs.

Best months: May–Sep
Water: 7–29 °C
Levels: Open Water, Advanced, Experienced
Nearest airport: PUY

When to go

Pick a month: the diving season, from published sources, and the typical weather.

Pick a month

Best
Good
Possible
Closed
Not documented yet

Istria in October

Good season

Air: 21 °C; 12 °C at night
Rain: 140 mm; one of the wettest months
Wind: 9 km/h; on average

Typical weather, not a forecast: averages for 2021–2025 (air, rain, wind), data from Open-Meteo (ERA5 / Copernicus, Météo-France). Covers an area of roughly 10 to 25 km around the destination.

Diving is possible all year, best May–Sep; most centres open Apr–Oct. In winter only a few centres operate and surface water drops to 7–10 °C.

Source: kroati.de

Dive sites in Istria

From the easiest to the most demanding. Levels with a dashed outline are estimates we are still verifying.

Open Water friendly

usual dive down to 18 m7 sites

Reef

down to 20 m

Figarola Island (Sv. Eufemija)

Small island off Rovinj where rock terraces step down to 18 m, with plenty of lobsters and conger eels under the overhangs.

Open Water
Conger eel

Wall

down to 25 m

Koversada (Lim Fjord entrance)

Two steep walls at the mouth of the Lim Fjord, sheltered from waves and currents, with lobsters, conger eels, nudibranchs and a small sailboat wreck.

Open Water
Nudibranchs

Reef

down to 12 m

Porto Sole Bay (house reef)

Shallow 2-12 m house reef in Vrsar, entered 25 m from the dive centre, with cuttlefish, conger eels, nudibranchs and scorpionfish.

Open Water
Cuttlefish

Reef

down to 24 m

Sveti Ivan Island (Rovinj)

Reef of huge blocks left by a Roman stone quarry, sloping gently from a calm bay to 24 m, with nudibranchs, cuttlefish and lobsters.

Open Water
Cuttlefish

Reef

down to 20 m

Lunga (Vrsar)

Easy island dive 10 minutes from Vrsar, sloping from 5 to 20 m, with schooling fish, lobsters, scorpionfish and, with luck, seahorses.

Open Water
Scorpionfish

Reef

down to 18 m

Sturag Island (Rovinj)

Open Water

Reef

down to 18 m

Sveti Nikola (Poreč)

Island in front of Poreč with a sponge-covered rocky slope down to 18 m, schools of fish and sometimes lobsters and conger eels.

Open Water
Conger eel

For Advanced divers

usual dive down to 30 m5 sites

Wreck

down to 29 m

Coriolanus

British WWII minesweeper sunk in 1945, well preserved at 29 m with its bridge at 17 m and anti-aircraft guns still in place.

Advanced
Nudibranchs

Wall

down to 22 m

Hawai (Pula)

Gently dropping 22 m wall close to shore near Pula, overgrown with seaweeds and sponges, with colourful sea slugs and shoals of salema and sea bream.

Advanced
Nudibranchs

Reef

down to 23 m

Roman Bay (Römerbucht, Lim Fjord)

Stepped reef from 5 to 23 m on the south side of the Lim Fjord entrance, with holes in the seabed feeding a freshwater spring in the shallows.

Advanced

Cavern

down to 32 m

Banjol Island (Bagnole)

Advanced
Scorpionfish

Reef

down to 27 m

Piruzi (Pirusi) Islands

Advanced
Scorpionfish

For experienced divers

usual dive down to 40 m4 sites

Wreck

down to 40 m

Baron Gautsch

Austro-Hungarian passenger liner sunk by a mine in 1914, lying upright at 40 m and covered in sponges and colourful nudibranchs.

Experienced
Nudibranchs

Wreck

down to 35 m

Giuseppe Dezza

Italian warship mined in 1944 between Pula and Rovinj, at 35 m with its anti-aircraft gun covered in sponges; John dories often seen.

Experienced
Nudibranchs

Wreck

down to 42 m

John Gilmore

One of the first ships sunk in the North Adriatic in WWI, an 85 m steamer between 30 and 42 m that is among the best-preserved wrecks in the area.

Experienced

Wreck

down to 43 m

Hans Schmidt (Istra)

Experienced

Marine life

When the big encounters happen, month by month.

Reported here, season not documented yet:

Crustaceans
Cuttlefish
Nudibranchs
Octopus
Scorpionfish
Conger eel
John dory
Dolphins
Turtles
Seahorses
Jellyfish

Where is Istria?

View on OpenStreetMapLocation: Istria (Wikipedia)Map: Natural Earth

Nearest airport: PUY

Istria: frequently asked questions

When is the best time to dive Istria?: The best months to dive Istria are May–Sep. Diving is possible all year, best May–Sep; most centres open Apr–Oct. In winter only a few centres operate and surface water drops to 7–10 °C.
Is Istria good for beginner divers?: Yes, partly: 7 of the 16 dive sites we document are suited to Open Water divers, including Figarola Island (Sv. Eufemija), Koversada (Lim Fjord entrance) and Porto Sole Bay (house reef). The others need more experience or a higher certification.
What is the water temperature in Istria?: The water is usually between 7 °C and 29 °C over the year.
What marine life can you see in Istria?: Divers regularly see crustaceans, cuttlefish, nudibranchs, octopus, scorpionfish and conger eel.
How do you dive Istria?: The nearest airport is PUY.

About this page

Seasons and marine life come from the sources below. Site levels and depths marked as estimated come from our original catalogue and are being checked one by one. Conditions change: always confirm with a local dive centre.

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Photo: Sarah Lee on Unsplash

Photo credits

Sunlight and bubbles in deep blue water, Sarah Lee, Unsplash License, on Unsplash