Athens vs Santorini

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Santorini edges ahead as the better destination in May. Santorini offers 12 hours of daily sunshine with only 2 rain days, while Athens sees 12 sunshine hours and 5 rain days.

Athens sits in the comfortable travel range at 25°C. Santorini is also comfortable at 21°C.

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

Athens reaches an average high of 25°C (77°F) and drops to 15°C (59°F) at night during May. The daily temperature range is 10°C, meaning moderate variation throughout the day.

Santorini averages 21°C (70°F) for the high and 17°C (63°F) for the low, with a daily range of 4°C. The 4°C difference is noticeable but not dramatic.

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

Athens receives approximately 23 mm of rainfall across 5 rain days during May. Rain is occasional, so a light rain jacket should suffice.

Santorini sees 10 mm over 2 rain days. That makes Santorini the drier option by 3 rain days and 13 mm of total precipitation.

Both cities share similar humidity levels at 65%.