Santorini vs Mykonos

This is Santorini's section. The island is the rim of a volcano that collapsed into the sea, and the inner coast is a sheer cliff more than 300 m high at its highest, with layers of lava in different colors and white towns perched on the edge. Fira is the capital, Oia is the village everyone photographs at sunset, and you can walk the cliff path between them in about 3 hours. A boat trip to the volcanic islet of Nea Kameni is the closest you get to the volcano itself.

Mykonos has a different kind of beauty. The Venetian windmills on the ridge above Little Venice, the whitewashed lanes of the town and the sea-front houses are what it's known for, and they look best in the evening and the early morning. It's pretty, and it's compact, but it doesn't have a landscape like the caldera. If the question is only "which place looks more extraordinary", the answer is Santorini.

One caution. The famous clifftop spots are also where the crowds are (see the sections on crowds and earthquakes). Go to Oia an hour before sunset, not at sunset, and have a plan for dinner.

This is Mykonos' section, and it isn't close. Most of its beaches are sandy and sit on the sheltered south coast: Ornos has sand sloping gently into the sea, Platys Gialos is a busy family beach and boat hub, Psarou is the upmarket one, Paradise Beach is the party beach, and Elia is a large organized stretch. They are a bus ride from town. The north coast takes the meltemi, so Panormos is for wind and space, not for lying still.

Santorini has no beaches on the caldera side, because that side is cliffs. The beaches are on the outer, east and south coast, and they are black, red or white volcanic pebbles and coarse sand. Perissa, Perivolos and Agios Georgios form a continuous 3 km strip with bars, Kamari is black sand and pebbles, and White Beach can only be reached by boat. Beach shoes help, and it's not the shallow sandy kind children prefer.

Red Beach is the famous one, below red cliffs near Akrotiri. Landslides there are not new: the Municipality of Thira has posted signs banning entry because of rockfall, and a rockfall in early February 2025 during the earthquake swarm closed it again. Local guides say the ban still stands in 2026, so treat Red Beach as something to look at from the viewpoint or from a boat tour, not as a swim stop, and do not climb over a barrier to reach it.

Mykonos is built for going out. The party beaches on the south coast have loud beach clubs from the afternoon, the town fills up after dinner, and the whole island plans its day around the evening. If nightlife is on your list, this is the island.

Santorini's evening is quieter and more romantic. You watch the sunset from a terrace in Oia or Fira, have dinner with a glass of local wine and walk back along the cliff. There are bars and a few clubs in Fira, but nobody comes to Santorini to dance until morning. If you want a calm, couple-focused trip, that's an advantage.

Both have a world-class site, and they are very different. Delos is a small uninhabited island 3.5 km from Mykonos that was a sacred sanctuary for a thousand years and is a UNESCO site. Boats leave from the old port and the crossing takes about 30 minutes. Akrotiri on Santorini is a Minoan Bronze Age city buried by the volcanic eruption and often compared with Pompeii. Santorini also has Ancient Thera, between Kamari and Perissa.

The practical side is similar. A ticket for either Delos or Akrotiri is 20 EUR (10 EUR reduced), from the Hellenic Ministry of Culture's site schedules. Delos is open until 20:00 from April to August and until 18:00 in the second half of October, 16:00 in November, and closed from December to March. Akrotiri keeps the same hours except on Mondays and Thursdays, when it closes at 15:30 in the season, and from November to March it is open 08:30 to 15:30 and closed on Tuesdays. The Delos boat is extra, and we couldn't confirm a fare, so ask at the old port.

Delos is bigger and gives a full day's walk among mosaics, the Terrace of the Lions and a theatre quarter. Akrotiri is smaller and more unusual, a Bronze Age town frozen by the eruption. We call it a tie, and you won't regret either.

Santorini has a real food and wine identity. Assyrtiko, the dry white from the volcanic soil, is the island's wine, and the typical dishes are fava (split-pea puree), tomato fritters, local goat cheese and grilled octopus. Tavernas and wine-bar terraces are everywhere, and Oia leans toward expensive tourist menus, so the more traditional places are in the villages and in Vlychada.

Mykonos has its own dishes, among them kopanisti (spicy cheese), louza (cured pork) and kremmydopita (onion pie), and good tavernas by the harbor and inland. Waterfront restaurants and drinks cost more than inland ones. It's a good table, but Santorini is the one with a wine you'll want to take home.

Both islands are among the most visited in Greece, and in July and August you'll share the best spots with a lot of people. Cruise ships make it sharper. Santorini now has a hard cap of 8,000 cruise passengers a day, applied through a berth-allocation system rather than a check on the day, and in 2026 each ship counts at its full capacity instead of 80%. Before the cap, the busiest days reportedly brought about 17,000 cruise passengers. Ferry and air arrivals aren't included. Mykonos has no equivalent daily cap, and most ships dock at Tourlos, 2 km north of the town, with passengers shuttled in.

Both islands also charge cruise passengers a landing levy, 20 EUR per person from June to September, 12 EUR in April, May and October, and 4 EUR from November to March, the same tiers the cruise lines list in their own fee notes. That is paid by the passenger on the ship, not by you if you arrive by ferry or plane.

Which is worse? On Santorini, the crowd is squeezed into a few cliff-top lanes in Oia and Fira. On Mykonos, it fills the town's lanes in the middle of the day. In both, it thins out by late afternoon and before 10 am, and in both it's far smaller from mid-September.

In late January 2025 a swarm of earthquakes began in the sea between Santorini, Anafi, Amorgos and Ios. It intensified in early February, the strongest quake was magnitude 5.3 on 10 February, schools were closed and thousands of residents and workers left, around 6,000 by ferry and up to 2,700 by air in the first days. A state of emergency ran from 6 February to 3 March. The swarm ended in late February.

Scientists later concluded that a large intrusion of magma, about 300 million cubic meters, had risen and stalled about 4 km below the seafloor, moving northeast away from the island. More than 28,000 quakes were recorded. The activity has declined, but monitoring continues, and this was not a volcanic eruption.

The current situation is what matters to a visitor. In April 2026 a joint ministerial decision introduced Civil Protection measures that run until 31 March 2027, after a unanimous recommendation from the scientific committees. Access to the Old Port of Fira and the area above it is generally allowed, except for one demarcated danger zone at the port. Vehicles are barred from the road down to Ammoudi beyond the main junction, with exceptions for supply vehicles and a small number of municipal-managed cars, and the hiking trail from Ammoudi to Agios Nikolaos is closed, while the Ammoudi to Oia path stays open. There are also traffic rules at the port of Athinios. Later reporting describes the framework as relaxed compared with early 2025. The measures can be changed or suspended immediately after a strong quake or extreme weather. The island itself is open.

Our view: this is a reason to check, not a reason to stay away. Read the government travel advice before you book, know where your hotel is relative to the restricted zones, choose a flexible rate, and take insurance that covers natural events. The measures cover Santorini only, but they are narrow, so we don't score this as a win for either island.

Both islands are seasonal. The sea reaches 24-25°C in July and August on both, but it's still 22°C in October on Santorini and 21°C on Mykonos, and rain is close to zero from June to August (see the table above). Many hotels, beach clubs and restaurants close from about November to March, and ferry service thins out. Delos is closed from December to March.

Both get the meltemi, the strong, dry north wind of the Aegean that blows from about mid-May to mid-September. On Mykonos it's the north coast that takes it, and boats to Delos can occasionally be cancelled on windy days. Check the forecast before booking a boat trip on either island.

May, June, September and early October are the best months for either island: warm, with smaller crowds and lower prices than in July and August. If you want a sea that's warm enough for a long swim, September is the safest pick.

Price. No like-for-like price survey covers both islands, so there are no figures here. The general picture is clear and the same for both: they are among the most expensive Greek islands, rooms with a caldera view on Santorini and beach-club sunbeds and waterfront dinners on Mykonos are the big costs, and prices drop a lot outside July and August. The cheaper way to do either is to stay in an inland village or on a bus line and eat away from the water.

Flights. Both have a small airport close to town (Santorini JTR 6 km from Fira, Mykonos JMK 4 km from town). Direct routes from London, Frankfurt and Belgrade run in the season on both, and Warsaw has a seasonal route to Santorini but none to Mykonos. Year-round, both are served from Athens, about 35 minutes to Mykonos and 30 to 45 minutes to Santorini.

Between the islands. There's a direct ferry. The fastest, a Seajets high-speed boat, takes about 2 hours 10 minutes, Golden Star takes about 2 hours 50 minutes, and slower sailings run to 3 hours 35 minutes. Economy fares start at about 58 EUR. There are up to 8 crossings a day in the peak of summer, and the route runs daily from April to September. In March, October and November sailings are fewer, and the Santorini to Mykonos direction doesn't run from December to February. Boats can be delayed by the meltemi, so don't plan a flight on the same afternoon.