Northern Adriatic, Dalmatian channels and open crossings are separate weather tasks.
Choose a sailing scenario
Use Istria/Kvarner for northern coastal and island-gap planning, Dalmatian dossiers for multi-stop island routes, and the broader Adriatic context for an open crossing. Each stop needs a destination-direction check; one Split forecast cannot represent the entire itinerary.
Season planning versus departure weather
Seasonal reputation helps shortlist a trip, but does not establish a departure window. Before fixing the passage, obtain current sea warnings, an issue valid across the planned legs and route-relevant observations. If the plan spans forecast horizons, schedule new checks rather than extending confidence beyond the data.
What the linked geography means
The links below include national waters, cross-border areas and, where relevant, overseas territories or onward passages. They are discovery links, not territorial boundaries or proof that one national bulletin covers every linked area. Follow each local desk to its own issuer.
Official products by task
- DHMZ Adriatic marine forecast — Adriatic warnings and marine text; verify the subarea and valid period.
Sector names help you locate the issuing product; they are not an automatic route-coverage match. Open the current issue and check boundaries, issue time and validity. This page does not display current warnings; an unavailable product does not mean no hazard.
Waters and sailing options
- Croatian Adriatic
Use the Adriatic warning first, then distinguish coastal channels from exposed island legs.
- Dalmatian islands
An island-hopping itinerary needs one arrival assessment for every stop, not one forecast for Split.
- Istria and Kvarner
A northern Adriatic dossier for peninsula coasts, exposed gaps and island approaches.
Departure ports & bases
- Split
Split: a departure-source desk, not a generic city forecast.
Build your passage brief
Bring your route, leg timings, vessel and crew profile, checked sources and reassessment triggers into the brief. Personal AI analysis and expert review are available to invited closed-test participants; a port page does not extend the calculation service’s coverage.
A Sailing Weather editorial guide to local conditions, practical passage preparation and marine-weather sources. Source and structure review: 27 September 2026. For a specific passage, check current issues, validity and forecast coverage. The skipper retains the final decision and responsibility.
A charter-base change changes the weather task
Compare the proposed first and last day from the actual base, not only the country label. An Istrian start and a Split-area itinerary differ in locality, exposure and the first practical decision point. Returning the boat at a fixed charter time can create a later leg that needs its own valid bulletin and alternative. Include that return constraint in the route plan instead of treating it as an administrative detail.
- DHMZ marine forecast for small craft — Adriatic warnings, synopsis and sea-state terminology
Weather and hydrography are complementary
Use DHMZ for marine warnings and sea-state context, and HHI for the applicable charts, publications and navigation-warning entry point. The weather brief should not silently assert a clear channel, working mark or permissive anchorage from a model map. Keep those source checks separate and refresh them for the actual island sequence. The small-craft sea-state scale also needs interpretation before comparison with a forecast expressed in metres.
- DHMZ marine forecast for small craft
- Croatian Hydrographic Institute — Official charts, publications and navigational-warning entry point Direct product verification is limited; obtain the current issue from the issuer.
Editorial review of this material: 27 September 2026. This date concerns the page content; check current forecast issue times and validity at the original sources.