Seville vs Porto

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

Seville can feel quite hot at 30°C, so plan for heat. Porto is also comfortable at 24°C.

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

Seville reaches an average high of 30°C (86°F) and drops to 19°C (66°F) at night during September. The daily temperature range is 11°C, meaning moderate variation throughout the day.

Porto averages 24°C (75°F) for the high and 16°C (61°F) for the low, with a daily range of 8°C. There is a notable 6°C gap between the two cities, so expect a very different feel.

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

Seville receives approximately 27 mm of rainfall across 4 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Porto sees 64 mm over 6 rain days. That makes Seville the drier option by 2 rain days and 37 mm of total precipitation.

Both cities share similar humidity levels at 65%.