Santorini vs Mykonos

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.

Santorini sits in the comfortable travel range at 15°C. Mykonos is cooler at 14°C.

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

Santorini reaches an average high of 15°C (59°F) and drops to 12°C (54°F) at night during December. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.

Mykonos averages 14°C (57°F) for the high and 12°C (54°F) for the low, with a daily range of 2°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.

Santorini receives approximately 54 mm of rainfall across 9 rain days during December. You can expect rain roughly every other day.

Mykonos sees 69 mm over 10 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%.