iLoveSea conditions
Wind alerts & ferry outlook
What this tool does: The iLoveGreece Sea Conditions Monitor shows current modelled wind for 12 Greek sea areas and three-day wind and wave forecasts near Greek ferry ports. Search by port and compare weather disruption guidance for fast boats and large ferries. Forecasts are not official sailing or cancellation confirmations.
My weather & sea
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Will my ferry sail? Three-day weather outlook
Weather cannot confirm a sailing. These are daily maximum forecasts near each port, not conditions along your whole crossing. Check your operator before travelling.
Port forecasts are temporarily unavailable. Check your operator for sailing updates.
| Port | Wind | Gusts | Waves | Fast boats | Large ferries |
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Source: Open-Meteo weather and marine forecast models. Missing marine data is shown as unavailable. Wind thresholds are guidance, not official departure-ban rules.
Seasonal warning
Outside the usual summer north-wind season. Autumn and winter storms can disrupt ferries too — check forecasts and operator notices.
Live wind by sea area
Attica
Piraeus / Saronic
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Cyclades (north)
Rafina / Andros strait
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Cyclades (central)
Mykonos & Tinos
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Cyclades (central)
Paros & Naxos
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Cyclades (west)
Milos & Folegandros
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Cyclades (south)
Santorini & Ios
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Crete
Heraklion (Sea of Crete)
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Dodecanese
Rhodes & Kos
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North Aegean
Lesvos & Chios
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Sporades
Skiathos & Skopelos
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Ionian
Corfu strait
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Ionian
Kefalonia & Zakynthos
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Ferry outlook is an estimate based on live wind (Open-Meteo). Only the Hellenic Coast Guard and the ferry operator can confirm a cancellation — check your operator's site, call the port authority, or ask at the ticket office.
What the numbers mean
Lower wind risk; this does not confirm a sailing or calm waves.
Bumpy ride. Fast boats may be delayed.
Higher disruption risk. Contact the operator for either vessel type.
Full Beaufort scale
- 0Calm · 0–1 km/h
Lower wind risk for fast boats; lower wind risk for large ferries. - 1Light air · 2–5 km/h
Lower wind risk for fast boats; lower wind risk for large ferries. - 2Light breeze · 6–11 km/h
Lower wind risk for fast boats; lower wind risk for large ferries. - 3Gentle breeze · 12–19 km/h
Lower wind risk for fast boats; lower wind risk for large ferries. - 4Moderate breeze · 20–28 km/h
Lower wind risk for fast boats; lower wind risk for large ferries. - 5Fresh breeze · 29–38 km/h
Bumpy ride possible for fast boats; bumpy ride possible for large ferries. - 6Strong breeze · 39–49 km/h
Check for changes for fast boats; rough ride possible for large ferries. - 7Near gale · 50–61 km/h
Higher disruption risk for fast boats; check for changes for large ferries. - 8Gale · 62–74 km/h
High disruption risk for fast boats; high disruption risk for large ferries. - 9Strong gale · 75–88 km/h
High disruption risk for fast boats; high disruption risk for large ferries. - 10+Storm+ · 89+ km/h
High disruption risk for fast boats; high disruption risk for large ferries.
Windy-day tips
- The strong summer wind is a dry north wind that blows across the Aegean from mid-May to mid-September, peaking in July and August.
- It typically builds late morning, peaks in the afternoon (often Beaufort 6–7, gusts 8) and eases at night — morning boats are more reliable.
- Episodes last 3–7 days. The central and eastern Cyclades (Mykonos, Tinos, Andros, Naxos, Paros, Amorgos) are hit hardest; the Ionian is barely affected.
- Catamarans and high-speed craft (SeaJets, Flying Cat, WorldChampion Jet) are restricted first — usually from Beaufort 7 under Coast Guard rules.
- Large conventional ferries (Blue Star, Hellenic Seaways, Minoan, ANEK) keep sailing until Beaufort 8–9, though they may leave late.
- Never book an island ferry for the day of an international flight in July–August. Keep a buffer day in Athens.
- If your fast boat is cancelled, the operator must offer a refund or rebooking; ask about a seat on the conventional ferry the same day.
Heading to port? See the port navigation guides for Piraeus, Rafina and Heraklion.