Air & sea temperatures in Santorini in November
November marks the transition to the cooler autumn and early winter season in Santorini. Average air and sea temperatures this month reflect the island's changing climate.
Daytime temperatures typically range from 16 to 20°C (61-68°F), while nighttime lows average 12-15°C (54-59°F). Although not as warm as the summer months, the temperatures are still pleasant and suitable for outdoor activities.
As for the sea, average temperatures gradually cool down to 18-20°C (64-68°F) in November. This sea temperature is quite cool, making swimming not suitable for everyone.
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Average rainfall in November
Although November is not the rainiest month of the year, the weather in Santorini in November does suggest some rainfall. On average, the island receives about 58-60 mm (2.3-2.4 in) of rainfall during November.
This rainfall is generally sporadic and does not last all day. Rainfall in November is more frequent than in summer, so if you plan to visit Santorini at this time, it is worth preparing some activities in case of rainy days and a mackintosh and umbrella.
For more detail on the weather in Greece around the year, read up on best time to go to Greece.