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
- →Quick-dry travel shirtAmazon · shop this
- →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
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Compare hotels on Booking.com→Other places with a similar climate right now
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 6mm 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 6mm. 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.