Santorini vs Mykonos

Santorini and Mykonos are closely matched in September. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Santorini sits in the comfortable travel range at 25°C. Mykonos is also comfortable at 24°C.

For travelers who prioritize dry weather, both cities are equally dry in September.

Santorini reaches an average high of 25°C (77°F) and drops to 22°C (72°F) at night during September. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.

Mykonos averages 24°C (75°F) for the high and 21°C (70°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 September.

Santorini receives approximately 5 mm of rainfall across 1 rain days during September. Rain is rare this month, so dry conditions are likely.

Mykonos sees 6 mm over 1 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 65%.