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Live forecasts update automatically; written guidance last reviewed 13 June 2026 by the Insight Britain weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Santorini enjoys a Mediterranean climate with hot, dry summers and mild, wet winters. The live forecast above shows current conditions in Fira; travellers planning a trip will find the best balance of warm weather and lower crowds in late spring and early autumn.
What is the typical weather pattern in Santorini?
Santorini has a classic Mediterranean climate, meaning hot, sunny summers and cool, wetter winters. The island is also exposed to the Meltemi wind during July and August, which provides a natural cooling breeze but can make sea conditions choppy. The live conditions above will give you the most up-to-date reading for Fira, but the patterns below will help you plan further ahead.
What is Santorini weather like in spring? (March, April, May)
Spring sees a sharp transition from cool and damp to warm and sunny. In March, average highs reach 16°C, and the island is green and quiet. By April, temperatures rise to around 19°C, making it a pleasant month for hiking and sightseeing without the summer crowds. For anyone checking santorini weather april or santorini weather march, expect cool evenings and a few rain showers. Santorini weather may is noticeably warmer, with highs of 23°C, longer sunshine hours and sea temperatures climbing to 19°C, suitable for swimming by late in the month.
What is Santorini weather like in summer? (June, July, August)
Summer is reliably hot, dry and bright. June averages 27°C, July 29°C and August 30°C. The Meltemi wind is strongest in July and August, which can make beach-going more comfortable but may disrupt ferry schedules. Sea temperatures peak at about 25°C in August, making it ideal for swimming. Those searching for santorini weather august should prepare for strong sunshine and pack high-factor sun protection. This is peak tourist season, so book accommodation well in advance.
What is Santorini weather like in autumn? (September, October, November)
Autumn is a favourite time for many visitors. September remains hot, with average highs of 27°C and sea temperatures still around 24°C. For those researching weather in santorini in october, expect a comfortable 23°C during the day, but evenings cool down to about 15°C. Santorini weather october sees decreasing sunshine (about 7 hours daily) and increasing rain, but it is still a very pleasant month for exploring. November is cooler, with highs of 18°C and around 50mm of rain, and many seasonal hotels and restaurants begin to close. Santorini weather november suits travellers who prefer solitude and lower prices.
What is Santorini weather like in winter? (December, January, February)
Winters are mild but wet and often windy. Highs range from 14°C to 16°C, and rain falls on around 10–12 days per month. Snow is extremely rare, though the mountains may see a dusting. Sea temperatures drop to about 16°C. This is the quietest season, and many attractions operate on reduced hours. A santorini weather forecast 14 days or santorini weather forecast 30 days during winter will show changeable conditions, with short periods of rain followed by clear, crisp skies.
What are the best months to visit Santorini?
For warm beach weather, June through September are best. For a balance of pleasant conditions and fewer tourists, May, late September and early October are ideal. If you want to check conditions shortly before travel, the 10-day forecast gives a reliable short-range outlook.
What should I pack for a trip to Santorini?
In summer (June to August): light clothing, sun hat, sunglasses, high-factor sunscreen, a light jacket for evenings and sturdy sandals. In spring and autumn (March to May, September to November): layers are key — T-shirts, a jumper or light fleece, a waterproof jacket and comfortable walking shoes. In winter: a warm coat, waterproofs and closed shoes. A swimsuit is useful year-round if you visit a heated pool or hot spring.
When is the rainy season in Santorini?
The rainy season runs from November to February. December and January are the wettest months, but even then, rain typically falls in short showers rather than all-day downpours. The rest of the year is predominantly dry, with July and August receiving virtually no rain.
How reliable are longer-range forecasts for Santorini?
A santorini weather forecast 30 days can indicate a general trend (e.g. a period of settled weather), but day-to-day accuracy is limited beyond 7–10 days. For practical planning, the UK weather hub provides links to shorter-range forecasts that are more dependable.
Frequently asked questions about Santorini weather
How hot is Santorini in August?
August is the hottest month, with average daily highs of 30°C. The Meltemi wind often provides some relief, but the sun is intense. Sea temperatures reach around 25°C. The live conditions above will show the exact temperature in Fira.
How hot is Santorini in October?
October sees average highs of 23°C, dropping to about 15°C in the evening. Sea temperatures remain a pleasant 22°C for much of the month. Rain becomes more likely, but there are still many sunny days, making it a good month for sightseeing.
How hot is Santorini in May?
May is warm and sunny, with average highs of 23°C and sea temperatures rising to 19°C. Evenings can be cool, so a light jacket is recommended. It is one of the best months for those who want warmth without the intense heat of July or August.
How hot is Santorini in April?
April averages highs of 19°C, with sea temperatures around 16°C. The island is quiet and green, and the weather is mild enough for walking and exploring. A jacket is essential for cooler evenings and occasional showers.
How hot is Santorini in November?
November is mild, with highs of about 18°C and lows of 11°C. Sea temperatures drop to around 18°C. Rain and stronger winds become common, and many tourist facilities close for the season. It suits visitors who prefer solitude and lower prices.
How does Santorini weather compare to other Mediterranean destinations?
Santorini’s climate is similar to that of Crete, Malta and Antalya, though the Meltemi wind makes it distinct in summer. All these destinations share hot, dry summers and mild, wet winters, though Santorini tends to be slightly cooler in summer due to sea breezes.