Choose the Aegean or Mediterranean coastal plan and evaluate the bay exit separately.
Choose a sailing scenario
A Göcek/Fethiye bay itinerary is not the same product as a long Turkish coastal leg or a Greek island crossing. Choose the actual coastal sea region before comparing departure times; add a neighbouring issuer when the track crosses its coverage.
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
- MGM 24-hour marine forecast — Turkish coastal sea products; choose Aegean or Mediterranean section as applicable.
- HNMS marine bulletin — Locate the named Greek sea sectors; check the actual issue, not a city forecast.
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
- Turkish Aegean and Mediterranean coast
Choose the relevant Turkish sea product before zooming into a sheltered charter bay.
- Aegean Sea
Plan the exposed island leg, not just a comfortable departure harbour.
- Dodecanese
Separate Greek island waters, Turkish coastal products and the final exposed approach.
- Turkish Black Sea coast
Select the Turkish coastal sector rather than extending a Bosporus forecast eastward.
- Bosporus and Sea of Marmara
Weather, currents and traffic-control rules are separate operational checks.
Departure ports & bases
- Göcek
Göcek: 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.
Do not mix Black Sea and Mediterranean assumptions
This country hub links Aegean, Mediterranean, Marmara/Bosporus and Black Sea desks. Those links are discovery routes, not one weather regime or one national product covering every leg. Pick the intended sea and source first, then use the corresponding local dossier. A sheltered Göcek charter does not validate a Bosporus transit, and a Greek-island itinerary requires the adjacent issuing service plus independently checked entry information.
- MGM Turkish-coast marine forecast — Turkish marine products; images require reading their stated coverage
- HNMS marine sectors — Named Greek sea sectors; not automatic route matching Direct product verification is limited; obtain the current issue from the issuer.
Make the briefing transferable between languages
Retain original MGM product names and area labels beside translations and distinguish forecast validity from map download time. For a crew relying on a different-language summary, highlight any untranslated warning or unverified region boundary instead of letting AI infer it. Cross-border agreement between models does not establish agreement between national warning products; examine both current issues separately.
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.