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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Metro Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for Santorini before planning your day, as conditions can shift quickly between the caldera and the open sea. This guide covers what to expect month by month, from warm summers to mild winters.
What is the weather like in Santorini throughout the year?
Santorini enjoys a Mediterranean climate with hot, dry summers and mild, damp winters. Summer highs often reach the low 30s °C from June to September, while winter temperatures stay around 12–16 °C. Spring (March to May) and autumn (October to November) are pleasantly warm, making them popular for sightseeing.
When is the best time to visit Santorini for good weather?
The ideal window for beach weather is May through October. Santorini weather May offers temperatures around 22–26 °C with low rainfall, while Santorini weather October stays mild at 20–24 °C. Santorini weather April and Santorini weather March are cooler but still pleasant for hiking and exploring villages without crowds.
What is the weather in Santorini in May?
May brings warm, settled conditions with average highs around 25 °C and little rain. Sea temperatures reach 19 °C, suitable for swimming. It’s one of the best months for enjoying the island before peak summer crowds.
How accurate is the Santorini weather forecast 14 days?
A 14-day forecast gives a general trend but becomes less reliable beyond 7 days. For trip planning, check the weather in Santorini 10 days ahead and re-check closer to departure. The Santorini weather forecast 30 days is only a broad outlook.
What about Santorini weather tomorrow?
For Santorini weather tomorrow, rely on the live forecast above. Local conditions can change fast, especially wind patterns in the caldera, so always check the latest update before heading out.
For more UK holiday weather, see our UK weather hub or compare with Crete Weather and Cyprus Weather. If you’re looking ahead, check the 10 Day Weather Forecast UK for home conditions.