Spring (April – May)
The site is green, wildflowers everywhere, temperatures around 18–24°C. Few tour buses. The sea is still cold (16–18°C) but boat trips are perfect for sightseeing without the heat.
Best for: photography, hiking around Delphi, calm visits.
Early summer (June)
Our favorite month. Warm (25–30°C), the gulf is swimmable (22°C), and the heavy summer crowds haven't arrived yet. Long evenings, perfect for sunset on the water.
Best for: couples, photographers, anyone who wants the full experience without August prices.
Peak summer (July – August)
Hot (30–35°C, sometimes more). The site is best visited at opening or in late afternoon. The sea is at 24–25°C - ideal for swimming. Itea and Galaxidi are lively in the evenings.
Best for: families, swimming-focused trips. Book the boat in advance.
Early autumn (September – mid October)
Probably the best overall window. Sea still warm (23°C), air cooler (22–28°C), light is golden, crowds thinner. The local tavernas relax.
Best for: anyone with flexibility on dates.
Off-season (November – March)
Delphi and the museum are quiet and cheap. Arachova becomes a ski village. Boat trips stop in winter - too windy on the gulf. Visit for the ruins and the mountains, not the sea.
Common questions
When is the sea warm enough to swim?
Mid-June to mid-October, with peak warmth in August.
When are boat trips available?
From April to late October, depending on the wind.
Is August too crowded?
The Delphi site is busy from 10:00 to 14:00. Visit early or late and August is fine.