Best Time to Visit Nea Kameni & the Santorini Volcano

Volcano boats run from about April to October, with the most departures from June to September. The sweet spots are late May–June and September–early October: the sea is warm enough for the hot springs, the crater trail is bearable, and there are fewer people than in peak summer.

Season at a glance

Months	What to expect
April – May	Fewer boats, fresh air, cool sea. Great for hiking; bring a layer.
June	Long days, warm sea, crowds building. An excellent all-round month.
July – August	Peak season. Hot trail, busiest boats, book ahead. Choose morning trips.
September – early October	Warm sea, calmer crowds, softer light. Often the best month.
November – March	Most tours stop. Crossings depend on the weather and demand.

Best time of day

Morning (9–11 am): coolest walk and calmest sea. Best for families and photographers.
Midday: the black lava is at its hottest. Avoid in July and August if you can.
Afternoon into sunset: combine the volcano with sunset off Oia on a full-day or catamaran trip.

Wind and sea conditions

Summer’s meltemi north wind can blow hard for a few days at a time. Boats still run in most conditions inside the caldera, but the swim at the hot springs can be rough. Tours sometimes switch routes or times — another reason to book an option with free cancellation.

Cruise ship days

Santorini is a major cruise port. On days with several ships at anchor, the Old Port and cable car are busiest from mid-morning. A departure from Athinios or Vlychada, or a private boat, avoids the queue.