Avg weather in December
9 Hrs per day
75 mm per month
70 % avg
16 Mph avg


What’s the weather like in Santorini in December?

Santorini weather in December is quite mild at the start of the month but the temperature continues to drop steadily and is quite cold by the end of the month.

Geographical influences

Located in the Aegean Sea is the beautiful island of Santorini. Its unusual landscape was shaped by an ancient volcanic eruption that occurred in the 16th century BC. The island sees warm summers and cooler winters with December being the coldest month of the year.


During the day, you’ll see mild temperatures reaching up to 15°C and lows of 11°C at night. You’ll need to pack a few extra layers to help deal with the chilly weather. The sea is usually too cold to swim in, but you can still enjoy the beauty of the beach under nine of hours of uninterrupted sunshine. Rainfall spreads over 11 rainy days, collecting a total average of 75mm over the entire month. This means there is a good chance you’ll see a few short showers during your stay, which gives you the excuse to enjoy a few refreshing drinks at the bar until the sun comes out again.

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