Athens vs Lisbon

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Athens edges ahead as the better destination in September. Athens offers 11 hours of daily sunshine with only 3 rain days, while Lisbon sees 11 sunshine hours and 4 rain days.

Athens sits in the comfortable travel range at 28°C. Lisbon is also comfortable at 25°C.

For travelers who prioritize dry weather, Athens is the stronger choice in September.

Athens reaches an average high of 28°C (82°F) and drops to 19°C (66°F) at night during September. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Lisbon averages 25°C (77°F) for the high and 18°C (64°F) for the low, with a daily range of 7°C. The 3°C difference is noticeable but not dramatic.

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

Athens receives approximately 17 mm of rainfall across 3 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Lisbon sees 29 mm over 4 rain days. That makes Athens the drier option by 1 rain day and 12 mm of total precipitation.

Both cities share similar humidity levels at 65%.