Santorini weather
Ten-year climate averages, month by month
Santorini in september
Current month averages, based on ten years of records. Read the full guide →
Santorini sits at 36°23′N 25°27′E in Greece, in Europe. Its climate profile is shaped by these coordinates — and the ten years of records below reveal exactly how each season feels on the ground.
Below, you'll find monthly averages for temperature, rainfall and sunshine, drawn from the Open-Meteo Archive. Every month links to a full guide with what to pack, where to stay, and when to arrive.
The year in weather
Santorini weather by month
Pick a month for the full climate guide — temperature, rainfall, sunshine, packing tips and hotel deals for Santorini.
Places that feel like Santorini in september
Santorini weather — FAQ
Q01When is the best time to visit Santorini?
When is the best time to visit Santorini?
The best months to visit Santorini are May, June, July, August. Ferries run on time, the caldera hotels are open, and the wildflowers hold through late May.
Q02What is the hottest month in Santorini?
What is the hottest month in Santorini?
July runs the highest averages in Santorini, with typical daytime highs of 30°C (85°F). Meltemi winds keep afternoons breathable despite the temperature.
Q03What is the coldest month in Santorini?
What is the coldest month in Santorini?
January brings the lowest averages, with daytime highs near 15°C (59°F). Winter feels quiet and shuttered — most tavernas close between January and March.
Q04Which month has the most rain in Santorini?
Which month has the most rain in Santorini?
January typically records the highest monthly rainfall — around 54mm on average. Rain concentrates in short bursts; the island rarely stays wet for a full day.
Q05What is the climate like in Santorini?
What is the climate like in Santorini?
Santorini, Greece has warm summers, mild winters. You can read the detailed month-by-month breakdown on this page.
Guides that mention Santorini
Why September Is Europe's Best-Kept Travel Secret
September in Europe: warm sea, empty cities, museum peace, half the prices. A data-driven case for the best month to travel most Europeans already know about.
Santorini Weather: A Complete Month-by-Month 2026 Guide
Ten years of Santorini climate data. Best months for sunsets, calderas, wineries, and honeymoons — plus honest shoulder-season advice.
5 Destinations That Are Cheaper — and Better — in Shoulder Season
Five popular destinations where shoulder-season pricing drops 40%+ and the weather actually improves. A data-driven case for the smart traveler.