Istria and Kvarner

A northern Adriatic dossier for peninsula coasts, exposed gaps and island approaches.

Forecast sectors and coverage

Read DHMZ northern-Adriatic warnings and marine text; verify the precise sector names in the current issue. An Italy-bound leg also needs the corresponding Italian product.

Weather-sensitive legs

When bora/bura appears in the bulletin, assess gust exposure across mainland–island gaps rather than just the harbour wind. A direction change can alter which side of Cres/Krk or the peninsula provides shelter.

Observations, sea state and reassessment

Use recent wind observations with their actual exposure and retain the warning context. An offshore wind at the departure coast does not establish an easy arrival on another coast or a low wave state across the gap.

Worked planning scenario — not a live forecast

For a peninsula-to-island leg, compare the exposed middle segment and arrival ETA. If shelter at the destination depends on the forecast direction staying unchanged, specify a reassessment time and a verified alternative before the gap.

Official products by task

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.

Countries & territories

Map orientation

The approximate map centre is not an approach waypoint, track, depth survey or forecast-zone boundary. The third-party map loads only on request.

Open map separately

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.

Prepare a passage brief

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.

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Differentiate the peninsula from mountain-side channels

Split a Pula–Cres–Krk itinerary at the exposed peninsula leg, island gap and destination side. The DHMZ bulletin can identify localities of enhanced gusts rather than one uniform northern-Adriatic wind; carry that locality into the route table. A Velebit-area warning must not be reduced to the value at an Istrian marina or mechanically applied as an identical value to every island coast.

Separate wind, sea scale and navigation

The sea-state number in the small-craft text is not metres of wave height. Compare like quantities when reviewing a model and distinguish forecast average wind from gusts in the warning. HHI navigational publications and warnings answer questions about marks, works and restrictions, not the wind forecast. These checks remain necessary when a numerical map shows favourable weather in a narrow channel.

Test the arrival after a turn in direction

For a peninsula-to-island crossing, ask whether the approach remains usable under the later valid hour, not only under departure conditions. If the destination-side shelter relies on one wind direction, define the change that requires reconsideration and the point before which a shorter alternative is still practical. A calm observation on a protected side is local evidence; retain the warning for the exposed segment.

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.