Mykonos vs Santorini

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Santorini edges ahead as the better destination in December. Santorini offers 7 hours of daily sunshine with only 9 rain days, while Mykonos sees 7 sunshine hours and 10 rain days.

Mykonos is on the cooler side at 14°C, requiring warmer clothing. Santorini is also comfortable at 15°C.

For travelers who prioritize dry weather, Santorini is the stronger choice in December.

Mykonos reaches an average high of 14°C (57°F) and drops to 12°C (54°F) at night during December. The daily temperature range is 2°C, meaning relatively stable temperatures from day to night.

Santorini averages 15°C (59°F) for the high and 12°C (54°F) for the low, with a daily range of 3°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.

Mykonos receives approximately 69 mm of rainfall across 10 rain days during December. You can expect rain roughly every other day.

Santorini sees 54 mm over 9 rain days. That makes Santorini the drier option by 1 rain day and 15 mm of total precipitation.

Both cities share similar humidity levels at 65%.