Santorini weather in September
“Reliably warm, dry, and generous with light.”
Roughly 1 rainy days across the month, on average.
In september, Santorini settles into its warmer, more generous mood. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 27°C (80°F), cooling to 23°C after sunset. Rain is rare enough that you can plan without a contingency. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Santorini in September
- •Breathable cotton or linen, and a broad-brimmed hat
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Santorini in September
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- →UPF sun hatAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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Where to stay in Santorini
We don't review individual hotels — plenty of people do that well. What we do is send you to compare rooms in Santorini across trusted platforms.
Compare hotels on Booking.com→September vs. the rest of the year
How this month compares in Santorini. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Santorini
While September has its own character in Santorini, the data-backed best months to visit Santorini are May, June, July, August. These months combine the most favourable temperatures, rainfall, and sunshine across a ten-year climate record.
See the full best-time-to-visit guide for SantoriniOther places with a similar climate right now
Read more about Santorini
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.
Ten years of Santorini climate data. Best months for sunsets, calderas, wineries, and honeymoons — plus honest shoulder-season advice.
Santorini in September — FAQ
Q01Is September a good time to visit Santorini?
Is September a good time to visit Santorini?
Yes — this is one of the best months of the year to visit. In September, Santorini averages a high of 27°C (80°F) and a low of 23°C (73°F), with 5mm of rainfall across roughly 1 rainy days.
Q02What is the average temperature in Santorini in September?
What is the average temperature in Santorini in September?
The average high temperature in Santorini during September is 27°C (80°F), with an average low of 23°C (73°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Santorini have in September?
How many rainy days does Santorini have in September?
Santorini averages approximately 1 rainy days in September, with a total monthly rainfall of about 5mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Santorini in September?
What should I pack for Santorini in September?
For Santorini in September, pack light, breathable clothing (cotton or linen), sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Santorini in September?
How crowded is Santorini in September?
Tourist crowds in Santorini during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely.