How far in advance should I book the Kos to Patmos ferry?

For July and August, book this route 3–6 weeks in advance. For May, June, September and October, 1–2 weeks is usually sufficient. Cabin berths on overnight ferries fill fastest — book as early as possible if you need a specific cabin class. Check the Teleporio Score before booking to identify the best departure window.

What happens if the Kos to Patmos ferry is cancelled due to bad weather?

When a Greek ferry is cancelled due to weather, operators are required to offer a full refund or rebooking on the next available sailing. You are not entitled to compensation for consequential costs such as hotels or flights missed as a result. Always build a buffer day before any onward flight or transport connection when island-hopping in summer, particularly on routes exposed to the Meltemi wind.

What is the Beaufort scale and how does it affect the Kos to Patmos crossing?

The Beaufort scale measures wind force from 0 (dead calm) to 12 (hurricane force). For Greek ferry travel, Beaufort 1–3 is ideal. Beaufort 4–5 means noticeable swell and possible motion sickness on smaller vessels. Beaufort 6–7 causes delays and cancellations on catamarans and hydrofoils. Beaufort 8 and above grounds most island ferry services completely. Teleporio’s Beaufort score factors current and forecast conditions into every route recommendation.

Teleporio™ — Greek Island Travel Intelligence

Kos to Patmos Ferry Guide

Plan the Kos to Patmos ferry. 2.5–4.5 hour Dodecanese crossing to the sacred island. Patmos has no airport — this is the only way to arrive. Schedules and George's tips.

Reviewed by Georgios — Teleporio™ route intelligence guide — Updated 2026-06-23

Kos to Patmos: The Dodecanese Sacred Island Connection

Patmos is the island where St John the Apostle wrote the Book of Revelation in approximately 95 AD, confined to a cave in the hillside above Skala harbour. The 11th-century Byzantine Monastery of St John the Theologian, built on the summit of the chora above the port, has dominated the island's silhouette for nine centuries. The Cave of the Apocalypse below it — a crack in the rock where the Apostle heard the divine voice — is a UNESCO World Heritage Site. Patmos has no airport. The ferry from Kos is the primary access route, and the Dodekanisos Seaways catamaran connecting Kos, Kalymnos, Leros, and Patmos is among the best-run local ferry services in the Aegean.

Patmos has made a deliberate choice about the kind of tourism it accepts. There is no mass-market hotel development on the island. The port village of Skala is small and genuinely Greek — working boats alongside tourist vessels, a handful of tavernas serving the regulars as well as the visitors. The chora (main village) at the top of the hill is one of the finest in Greece: a labyrinth of whitewashed houses built close together for medieval defensive purposes, with the monastery walls and tower at the centre. The island attracts a particular kind of visitor — not the package-holiday crowd, but travellers who came for something specific and found more than they expected.

Operators and the Dodecanese Chain

Dodekanisos Seaways (high-speed catamaran): approximately 2.5–3 hours from Kos, stopping at Kalymnos and Leros. Daily in summer, several weekly in winter. The primary service.
Blue Star Ferries (conventional): 3.5–4.5 hours. Several weekly departures, stopping at Kos en route from Piraeus to northern Dodecanese. More stable in rough conditions.
Departure point at Kos: Main Kos Town port. Check whether your service departs from Kos Town harbour or Mastichari port (on the western side of the island) — some Dodekanisos Seaways routes use Mastichari.
Patmos port: Skala harbour. A small port. The ferry arrival is a significant daily event in the village.

Beaufort Sensitivity on the Dodecanese Chain

The northern Dodecanese corridor — Kos to Leros to Patmos — is more sheltered than the open Cyclades. The Meltemi affects this stretch, but with less consistency and intensity than the Santorini-Mykonos run. The Dodekanisos Seaways catamaran is cancelled in sustained Beaufort 6, but this occurs less frequently than on the fully exposed Cyclades routes. The Blue Star conventional is more reliable in rough conditions. In peak summer, morning sailings score significantly better than afternoon departures on this corridor.

The main practical consideration for Patmos planning: there is no airport. If your catamaran cancels, the next service may be the following day or a Blue Star conventional ferry. Always build a contingency buffer into any Patmos visit that ends with a return flight. The nearest airports are Kos (KGS, approximately 3 hours by catamaran) and Leros (LRS, approximately 1.5 hours), but with no inter-island flights, a missed catamaran means a delayed departure, not a rebooked flight.

The Island Above the Port

The chora of Patmos sits 200 metres above Skala harbour. The walk up takes 30–45 minutes through a stepped path. In summer, a local bus connects the port to the chora and to Grikos beach on the eastern side of the island. The monastery at the top opens in the mornings and on feast days — check the current visiting schedule before planning around it. The Cave of the Apocalypse is 15 minutes below the monastery on the path from Skala. It is a small, low-ceilinged, Byzantine-decorated cave with a crack in the rock that tradition identifies as the source of the divine voice. Whether approached as a place of religious significance or as an extraordinary piece of living medieval history, it is worth the climb.

Frequently Asked Questions: Kos to Patmos

How long is the ferry from Kos to Patmos? Dodekanisos Seaways catamaran: approximately 2.5–3 hours stopping at Kalymnos and Leros. Blue Star conventional: 3.5–4.5 hours. Does Patmos have an airport? No — Patmos is ferry-only. The nearest airports are Kos (KGS) and Leros (LRS). What is Patmos known for? The Cave of the Apocalypse (UNESCO) where St John wrote the Book of Revelation, and the 11th-century Byzantine Monastery of St John the Theologian above the chora. Is the crossing rough? Moderately affected by the Meltemi in July–August. Take the morning departure. Dodekanisos Seaways catamarans can be cancelled in Beaufort 6+. How do I get from Kos to Patmos without flying? Dodekanisos Seaways catamaran: 2.5–3 hours. Blue Star ferry from Piraeus stops at Kos en route to Patmos. Both operators serve this corridor.