Porto vs Madrid

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Madrid edges ahead as the better destination in September. Madrid offers 11 hours of daily sunshine with only 4 rain days, while Porto sees 10 sunshine hours and 6 rain days.

Porto sits in the comfortable travel range at 24°C. Madrid is also comfortable at 26°C.

For travelers who prioritize dry weather, Madrid is the stronger choice in September. Madrid receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Porto reaches an average high of 24°C (75°F) and drops to 16°C (61°F) at night during September. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Madrid averages 26°C (79°F) for the high and 14°C (57°F) for the low, with a daily range of 12°C. The 2°C difference is noticeable but not dramatic.

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

Porto receives approximately 64 mm of rainfall across 6 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Madrid sees 21 mm over 4 rain days. That makes Madrid the drier option by 2 rain days and 43 mm of total precipitation.

Both cities share similar humidity levels at 65%.