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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Current UK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before you travel, then pack for warm, sunny days with cooler evenings. Santorini’s Mediterranean climate brings hot, dry summers and mild winters, making it a year-round destination for UK travellers seeking reliable sunshine.
What is the best time to visit Santorini?
Late spring to early autumn – May through October – offers the most dependable warmth and low rainfall. Santorini weather in May and June is ideal for sightseeing without the peak heat, while July and August are hottest, often exceeding 30°C. Santorini weather in October stays pleasantly warm, though evenings cool off earlier. For fewer crowds and comfortable temperatures, April and May are a smart choice. The Santorini weather forecast 14 days and the Santorini weather forecast 30 days are worth monitoring if you’re planning ahead.
What should you pack for Santorini?
Light layers, sun protection and a light jacket or cardigan for after sunset. In summer (June–September) you’ll need shorts, T‑shirts, a hat and high‑SPF sunscreen. For spring (March–May) and autumn (October–November) pack a few warmer items – Santorini weather in April and Santorini weather in March can be fresh, especially in the evenings. A waterproof layer is sensible for rare showers. Don’t forget comfortable walking shoes for the cobbled streets of Oia and Fira.
What is the weather like in Santorini in October?
October remains warm, with average highs around 23°C and sea temperatures still pleasant for swimming. Rain is possible but usually brief. It’s a quieter time to visit, and the weather in Santorini 10 days ahead can help you decide when to go.
What is the weather like in Santorini in May?
May is one of the best months: highs of 24°C, plenty of sunshine, and minimal rain. The island is green, crowds are lighter, and it’s perfect for exploring archaeological sites and coastal walks.
What is the Santorini weather forecast for tomorrow?
Check the live forecast above for current conditions. For a general guide, Santorini weather tomorrow will follow the seasonal pattern – warm in summer, mild in winter – but always verify specifics before you leave.
For a wider view of Mediterranean destinations, compare Crete Weather or our 10 Day UK Forecast to plan your next trip. The Santorini weather forecast 14 days and Santorini weather forecast 30 days can be found via the live forecast above, but remember that long‑range outlooks are only general guides.