If you are taking a ferry or catamaran on the Croatian Adriatic today, do not treat an early-morning ticket check as enough. DHMZ's 06:00 marine forecast says a low with a frontal disturbance is crossing the Adriatic, with occasional gusts of south-easterly and south-westerly winds reaching 35 to 45 knots as the day progresses from the north toward the central and then southern Adriatic. A risk of isolated thunderstorms is also in the forecast.
That matters because disruptions are not theoretical anymore. Jadrolinija's interrupted-lines notice for 15 May already shows cancelled catamarans in the Rijeka district, and Krilo and Krilo Lux have posted cancellations on the Pula, Unije, Susak, Mali Lošinj, Ilovik, Silba and Zadar route.
What the official warnings say this morning
HAK says roads are wet and slippery throughout the country, that rockslides are possible in mountain areas and on the DC8 Adriatic road, and that daytime difficulties are possible in roadwork areas including the DC1 Solin-Klis section and several stretches of the DC8. So this is not only a sailing-day issue. For some travelers, the drive to the port may also be slower and messier than planned.

DHMZ's Adriatic forecast zones help explain why disruption risk can build from north to central and then southern waters through the day.
What is already disrupted
Official source | What is affected | What the notice says | Best next step |
|---|---|---|---|
Jadrolinija | Rijeka district catamarans | The operator says line 9308 Mali Lošinj-Cres-Rijeka and line 9309 Novalja-Rab-Rijeka do not operate today. | Recheck the interrupted-lines page and the Jadrolinija timetable search before leaving. |
Krilo | Pula to Zadar route via northern islands | Krilo says the 15 May 07:00 departure from Pula to Zadar was cancelled due to adverse weather conditions. | Open the 07:00 notice directly and recheck later departures on the same route. |
Krilo Lux | Zadar to Pula return sailing | Krilo Lux says the 15 May 16:00 departure from Zadar to Pula was cancelled due to adverse weather conditions. | Check the 16:00 notice again before heading to the terminal. |
DHMZ and HAK | Later sailings and port access | DHMZ warns of stronger gusts building through the day, while HAK warns of wet roads, possible rockslides and friction on key Adriatic approaches. | Do one last live check of weather, sailing status and road conditions right before you leave. |
Before you go: if you are sailing later today, check the operator again just before you leave for the port, not only when you buy or open the ticket in the morning.
Do not read one quiet departure as a full-day all clear
The most useful practical read today is not whether your exact line still looks normal right now. It is whether the risk pattern is getting worse after your last check. DHMZ's wording matters here because the stronger gusts are expected to build from north to central and then southern sections through the day. That means a route that still looks fine early can become less comfortable or less reliable later.
If you are traveling on foot, keep your operator notice pages bookmarked. If you are driving to a port, keep both the HAK live traffic page and your ferry operator page open. And if you are traveling between islands or connecting onward by bus or airport transfer, leave more slack than usual between legs.