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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Santorini’s climate is a classic Mediterranean cycle: hot, dry summers from June to September and mild, wet winters from November to February. The live forecast above shows current conditions, but the island’s real weather story is its consistent summer sunshine and narrow temperature range year-round.
What is the typical temperature range in Santorini?
Summer highs (July–August) average 28–32°C, with sea breezes keeping the heat tolerable. Winter lows (January) drop to 9–12°C overnight. Spring and autumn—particularly santorini weather may and santorini weather october—offer pleasant 18–25°C days, ideal for sightseeing. The island receives less than 10 mm of rain in June, July and August.
How reliable are extended forecasts for Santorini?
For a santorini weather forecast 14 days or weather in santorini 10 days, treat the second week as a general trend rather than a precise prediction. The santorini weather forecast 30 days is only useful for spotting broad shifts in pressure patterns. For santorini weather tomorrow, the live forecast above is your most accurate reference. Travellers accustomed to Fahrenheit should note that 30°C equals 86°F.
When is the best time to visit Santorini for good weather?
Late April to June (spring) and September to October (autumn) offer warm, sunny days with fewer crowds. July and August are peak heat and tourist season.
Does Santorini experience extreme weather?
Rarely. The meltemi wind can strengthen in July and August, making seas choppy. Winter storms bring rain but not cyclones or severe hail.
Can I check santorini weather monthly averages before booking?
Yes. Monthly data helps you choose the right season: May averages 20°C, October 20°C, but October has more rain (around 40 mm) and shorter daylight.
Sources
For more Australian and international outlooks, explore our Australia weather hub or compare conditions with Venice Weather and London Weather September.