Best Time to Visit Santorini Island

Choosing when to go to Santorini comes down to a trade-off between weather, crowds and how much of the island is actually open. The season runs roughly from April to October, peaks hard in July and August, and thins out to almost nothing by December. This guide sets out what each part of the year looks like, along with the beaches and the festivals that are tied to particular dates.

Climate Through the Year

Santorini has a hot-summer Mediterranean climate, and it is one of the drier places in Greece: there are no rivers on the island and much of its fresh water comes from desalination. Summer runs from June to September, with July and August the hottest months, when daytime temperatures average around 29 C (84 F). Daylight peaks at roughly fourteen and a half hours in late June, and the evenings cool noticeably once the sun is off the caldera wall.

Winter is short, from December to February. January is the coldest and wettest month, with daytime highs around 14 C (57 F) and roughly ten days of rain. The island stays walkable in winter, but a large share of the cliffside hotels, restaurants and boat operators close between November and March, and ferry schedules are cut back, so a winter visit is a different proposition rather than simply a quieter version of the same trip.

The other factor is wind. Like the rest of the Cyclades, Santorini gets the meltemi, a dry northerly that blows hardest through July and August and can interrupt small-boat crossings.

Spring and Autumn

Late April to early June and September into early October are the more comfortable windows. Temperatures are moderate, the caldera-rim footpath from Fira to Oia is walkable without setting out at dawn, and the inland villages such as Pyrgos and Megalochori are not overrun. Spring brings wildflowers across the volcanic slopes; September has the warmest sea of the year, since the water lags the air by several weeks, along with the wine harvest and most of the island's festival calendar.

Beaches

The island's beaches are volcanic, and they differ from one another by geology rather than by facilities.

• Red Beach, below the archaeological site of Akrotiri in the south, takes its colour from oxidised red-brown lava cliffs standing directly over the shore. Those cliffs are unstable and the beach has been subject to rockfall closures, so check its status before making the trip.
• White Beach, a small cove of pale pumice next to it, has no road access and is reached by boat from Akrotiri.
• Kamari, on the east coast at the foot of the Mesa Vouno ridge below Ancient Thira, is a long black-pebble beach with the fullest range of seafront amenities on the island.
• Perissa and Perivolos, on the other side of the same ridge, form a further long stretch of black sand.

Several of the best coves have no road down to them at all, which is why so many visitors explore this coast by private gulet charter rather than driving between beaches.

Festivals and Their Dates

Three events are worth planning around, and all of them are fixed to a season rather than spread through the year:

• Ifestia, the volcano festival, stages a firework display over the caldera that re-enacts the eruption. It grew out of a one-off pyrotechnic show at a concert in 1991 and is now held in late summer, in recent years on a Saturday in September.
• The International Music Festival of Santorini has run since 1979, founded by the pianist Athena Capodistria. It is a classical festival and occupies the first three weeks of September.
• Orthodox Easter falls on a moving date in spring. On Good Friday the medieval village of Pyrgos is lit with thousands of handmade tin lanterns, the denekedakia, set along the alleys, steps, rooftops and castle walls for the Epitaphios procession.