Santorini Weather in October
What's the weather like in Santorini (Greece) in October 2025?
The climate in Santorini during October can be summarized as warm and reasonably dry.
October is in the fall / autumn in Santorini and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 22°C (71°F), whilst at night 16°C (61°F) is normal.
| Daytime temperature | 21.8°C 71.2°F |
|---|---|
| Nightly temperature | 16.3°C 61.3°F |
| Average temperature | 19°C 66.2°F |
| Daily sunshine | 7.8 hrs |
| Avg rainfall | 61 mm 2.4 ins |
| Rainy days | 4 days |
| Sea temperature | 22°C 71.6°F |
| Humidity | 70% |
| Windspeed | 13.3kph 8 mph |
On average October is the 6th wettest month of the year in Santorini with around 61mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
October temperatures in Santorini
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Santorini in October 2025.
Other monthly averages
Best places to visit in October
Santorini weather stats
| Hottest month: | July | 27.6°C 81.7°F |
|---|---|---|
| Driest month: | July | 1mm 0ins |
| Sunniest month: | July | 14.2hrs |
| Coldest month: | January | 13.9°C 57°F |
| Wettest month: | January | 114mm 4.5ins |
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